diff options
Diffstat (limited to 'freetype/src/autofit')
| -rw-r--r-- | freetype/src/autofit/afangles.c | 60 | ||||
| -rw-r--r-- | freetype/src/autofit/afblue.c | 109 | ||||
| -rw-r--r-- | freetype/src/autofit/afblue.dat | 257 | ||||
| -rw-r--r-- | freetype/src/autofit/afblue.h | 88 | ||||
| -rw-r--r-- | freetype/src/autofit/afblue.hin | 14 | ||||
| -rw-r--r-- | freetype/src/autofit/afcjk.c | 89 | ||||
| -rw-r--r-- | freetype/src/autofit/afcjk.h | 4 | ||||
| -rw-r--r-- | freetype/src/autofit/afglobal.c | 9 | ||||
| -rw-r--r-- | freetype/src/autofit/afglobal.h | 8 | ||||
| -rw-r--r-- | freetype/src/autofit/afhints.c | 267 | ||||
| -rw-r--r-- | freetype/src/autofit/afhints.h | 55 | ||||
| -rw-r--r-- | freetype/src/autofit/aflatin.c | 221 | ||||
| -rw-r--r-- | freetype/src/autofit/aflatin.h | 17 | ||||
| -rw-r--r-- | freetype/src/autofit/aflatin2.c | 16 | ||||
| -rw-r--r-- | freetype/src/autofit/afloader.c | 6 | ||||
| -rw-r--r-- | freetype/src/autofit/afmodule.c | 8 | ||||
| -rw-r--r-- | freetype/src/autofit/afranges.c | 84 | ||||
| -rw-r--r-- | freetype/src/autofit/afscript.h | 21 | ||||
| -rw-r--r-- | freetype/src/autofit/afstyles.h | 18 | ||||
| -rw-r--r-- | freetype/src/autofit/hbshim.c | 16 |
20 files changed, 851 insertions, 516 deletions
diff --git a/freetype/src/autofit/afangles.c b/freetype/src/autofit/afangles.c index b44a5ba2c..f8b095bef 100644 --- a/freetype/src/autofit/afangles.c +++ b/freetype/src/autofit/afangles.c @@ -20,66 +20,6 @@ #include "aftypes.h" -#if 0 - - FT_LOCAL_DEF( FT_Int ) - af_corner_is_flat( FT_Pos x_in, - FT_Pos y_in, - FT_Pos x_out, - FT_Pos y_out ) - { - FT_Pos ax = x_in; - FT_Pos ay = y_in; - - FT_Pos d_in, d_out, d_corner; - - - if ( ax < 0 ) - ax = -ax; - if ( ay < 0 ) - ay = -ay; - d_in = ax + ay; - - ax = x_out; - if ( ax < 0 ) - ax = -ax; - ay = y_out; - if ( ay < 0 ) - ay = -ay; - d_out = ax + ay; - - ax = x_out + x_in; - if ( ax < 0 ) - ax = -ax; - ay = y_out + y_in; - if ( ay < 0 ) - ay = -ay; - d_corner = ax + ay; - - return ( d_in + d_out - d_corner ) < ( d_corner >> 4 ); - } - - - FT_LOCAL_DEF( FT_Int ) - af_corner_orientation( FT_Pos x_in, - FT_Pos y_in, - FT_Pos x_out, - FT_Pos y_out ) - { - FT_Pos delta; - - - delta = x_in * y_out - y_in * x_out; - - if ( delta == 0 ) - return 0; - else - return 1 - 2 * ( delta < 0 ); - } - -#endif /* 0 */ - - /* * We are not using `af_angle_atan' anymore, but we keep the source * code below just in case... diff --git a/freetype/src/autofit/afblue.c b/freetype/src/autofit/afblue.c index 6e214c872..811226eac 100644 --- a/freetype/src/autofit/afblue.c +++ b/freetype/src/autofit/afblue.c @@ -26,15 +26,21 @@ af_blue_strings[] = { /* */ - 'T', 'H', 'E', 'Z', 'O', 'C', 'Q', 'S', /* THEZOCQS */ + '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\x9F', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕПЗОСЭ */ '\0', - 'H', 'E', 'Z', 'L', 'O', 'C', 'U', 'S', /* HEZLOCUS */ + '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\xA8', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕШЗОСЭ */ '\0', - 'f', 'i', 'j', 'k', 'd', 'b', 'h', /* fijkdbh */ + '\xD1', '\x85', '\xD0', '\xBF', '\xD0', '\xBD', '\xD1', '\x88', '\xD0', '\xB5', '\xD0', '\xB7', '\xD0', '\xBE', '\xD1', '\x81', /* хпншезос */ '\0', - 'x', 'z', 'r', 'o', 'e', 's', 'c', /* xzroesc */ + '\xD1', '\x80', '\xD1', '\x83', '\xD1', '\x84', /* руф */ '\0', - 'p', 'q', 'g', 'j', 'y', /* pqgjy */ + '\xE0', '\xA4', '\x95', '\xE0', '\xA4', '\xAE', '\xE0', '\xA4', '\x85', '\xE0', '\xA4', '\x86', '\xE0', '\xA4', '\xA5', '\xE0', '\xA4', '\xA7', '\xE0', '\xA4', '\xAD', '\xE0', '\xA4', '\xB6', /* क म अ आ थ ध भ श */ + '\0', + '\xE0', '\xA4', '\x88', '\xE0', '\xA4', '\x90', '\xE0', '\xA4', '\x93', '\xE0', '\xA4', '\x94', '\xE0', '\xA4', '\xBF', '\xE0', '\xA5', '\x80', '\xE0', '\xA5', '\x8B', '\xE0', '\xA5', '\x8C', /* ई ऐ ओ औ ि ी ो ौ */ + '\0', + '\xE0', '\xA4', '\x95', '\xE0', '\xA4', '\xAE', '\xE0', '\xA4', '\x85', '\xE0', '\xA4', '\x86', '\xE0', '\xA4', '\xA5', '\xE0', '\xA4', '\xA7', '\xE0', '\xA4', '\xAD', '\xE0', '\xA4', '\xB6', /* क म अ आ थ ध भ श */ + '\0', + '\xE0', '\xA5', '\x81', '\xE0', '\xA5', '\x83', /* ु ृ */ '\0', '\xCE', '\x93', '\xCE', '\x92', '\xCE', '\x95', '\xCE', '\x96', '\xCE', '\x98', '\xCE', '\x9F', '\xCE', '\xA9', /* ΓΒΕΖΘΟΩ */ '\0', @@ -46,26 +52,31 @@ '\0', '\xCE', '\xB2', '\xCE', '\xB3', '\xCE', '\xB7', '\xCE', '\xBC', '\xCF', '\x81', '\xCF', '\x86', '\xCF', '\x87', '\xCF', '\x88', /* βγημρφχψ */ '\0', - '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\x9F', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕПЗОСЭ */ + '\xD7', '\x91', '\xD7', '\x93', '\xD7', '\x94', '\xD7', '\x97', '\xD7', '\x9A', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', /* בדהחךכםס */ '\0', - '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\xA8', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕШЗОСЭ */ + '\xD7', '\x91', '\xD7', '\x98', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', '\xD7', '\xA6', /* בטכםסצ */ '\0', - '\xD1', '\x85', '\xD0', '\xBF', '\xD0', '\xBD', '\xD1', '\x88', '\xD0', '\xB5', '\xD0', '\xB7', '\xD0', '\xBE', '\xD1', '\x81', /* хпншезос */ + '\xD7', '\xA7', '\xD7', '\x9A', '\xD7', '\x9F', '\xD7', '\xA3', '\xD7', '\xA5', /* קךןףץ */ '\0', - '\xD1', '\x80', '\xD1', '\x83', '\xD1', '\x84', /* руф */ + 'T', 'H', 'E', 'Z', 'O', 'C', 'Q', 'S', /* THEZOCQS */ '\0', - '\xD7', '\x91', '\xD7', '\x93', '\xD7', '\x94', '\xD7', '\x97', '\xD7', '\x9A', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', /* בדהחךכםס */ + 'H', 'E', 'Z', 'L', 'O', 'C', 'U', 'S', /* HEZLOCUS */ '\0', - '\xD7', '\x91', '\xD7', '\x98', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', '\xD7', '\xA6', /* בטכםסצ */ + 'f', 'i', 'j', 'k', 'd', 'b', 'h', /* fijkdbh */ '\0', - '\xD7', '\xA7', '\xD7', '\x9A', '\xD7', '\x9F', '\xD7', '\xA3', '\xD7', '\xA5', /* קךןףץ */ + 'x', 'z', 'r', 'o', 'e', 's', 'c', /* xzroesc */ + '\0', + 'p', 'q', 'g', 'j', 'y', /* pqgjy */ + '\0', + '\xE0', '\xB0', '\x87', '\xE0', '\xB0', '\x8C', '\xE0', '\xB0', '\x99', '\xE0', '\xB0', '\x9E', '\xE0', '\xB0', '\xA3', '\xE0', '\xB0', '\xB1', '\xE0', '\xB1', '\xAF', /* ఇ ఌ ఙ ఞ ణ ఱ ౯ */ + '\0', + '\xE0', '\xB0', '\x85', '\xE0', '\xB0', '\x95', '\xE0', '\xB0', '\x9A', '\xE0', '\xB0', '\xB0', '\xE0', '\xB0', '\xBD', '\xE0', '\xB1', '\xA8', '\xE0', '\xB1', '\xAC', /* అ క చ ర ఽ ౨ ౬ */ #ifdef AF_CONFIG_OPTION_CJK '\0', '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0', /* 他们你來們到和地 */ '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', '\xE5', '\xB8', '\xAD', '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x83', /* 对對就席我时時會 */ '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\x83', '\xBD', '\xE8', '\x88', '\xB0', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99', /* 来為能舰說说这這 */ - '\xE9', '\xBD', '\x8A', /* 齊 */ - '\0', + '\xE9', '\xBD', '\x8A', '|', /* 齊 | */ '\xE5', '\x86', '\x9B', '\xE5', '\x90', '\x8C', '\xE5', '\xB7', '\xB2', '\xE6', '\x84', '\xBF', '\xE6', '\x97', '\xA2', '\xE6', '\x98', '\x9F', '\xE6', '\x98', '\xAF', '\xE6', '\x99', '\xAF', /* 军同已愿既星是景 */ '\xE6', '\xB0', '\x91', '\xE7', '\x85', '\xA7', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\xA8', '\xE7', '\xBD', '\xAE', '\xE8', '\xA6', '\x81', /* 民照现現理用置要 */ '\xE8', '\xBB', '\x8D', '\xE9', '\x82', '\xA3', '\xE9', '\x85', '\x8D', '\xE9', '\x87', '\x8C', '\xE9', '\x96', '\x8B', '\xE9', '\x9B', '\xB7', '\xE9', '\x9C', '\xB2', '\xE9', '\x9D', '\xA2', /* 軍那配里開雷露面 */ @@ -74,8 +85,7 @@ '\xE4', '\xB8', '\xAA', '\xE4', '\xB8', '\xBA', '\xE4', '\xBA', '\xBA', '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xA5', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', /* 个为人他以们你來 */ '\xE5', '\x80', '\x8B', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\xA4', '\xA7', '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', /* 個們到和大对對就 */ '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x89', '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\xA6', '\x81', '\xE8', '\xAA', '\xAA', /* 我时時有来為要說 */ - '\xE8', '\xAF', '\xB4', /* 说 */ - '\0', + '\xE8', '\xAF', '\xB4', '|', /* 说 | */ '\xE4', '\xB8', '\xBB', '\xE4', '\xBA', '\x9B', '\xE5', '\x9B', '\xA0', '\xE5', '\xAE', '\x83', '\xE6', '\x83', '\xB3', '\xE6', '\x84', '\x8F', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\x9F', /* 主些因它想意理生 */ '\xE7', '\x95', '\xB6', '\xE7', '\x9C', '\x8B', '\xE7', '\x9D', '\x80', '\xE7', '\xBD', '\xAE', '\xE8', '\x80', '\x85', '\xE8', '\x87', '\xAA', '\xE8', '\x91', '\x97', '\xE8', '\xA3', '\xA1', /* 當看着置者自著裡 */ '\xE8', '\xBF', '\x87', '\xE8', '\xBF', '\x98', '\xE8', '\xBF', '\x9B', '\xE9', '\x80', '\xB2', '\xE9', '\x81', '\x8E', '\xE9', '\x81', '\x93', '\xE9', '\x82', '\x84', '\xE9', '\x87', '\x8C', /* 过还进進過道還里 */ @@ -85,8 +95,7 @@ '\xE4', '\xBA', '\x9B', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0', /* 些们你來們到和地 */ '\xE5', '\xA5', '\xB9', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE5', '\xB0', '\xB1', '\xE5', '\xB9', '\xB4', '\xE5', '\xBE', '\x97', '\xE6', '\x83', '\x85', '\xE6', '\x9C', '\x80', /* 她将將就年得情最 */ '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE7', '\x90', '\x86', '\xE8', '\x83', '\xBD', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99', /* 样樣理能說说这這 */ - '\xE9', '\x80', '\x9A', /* 通 */ - '\0', + '\xE9', '\x80', '\x9A', '|', /* 通 | */ '\xE5', '\x8D', '\xB3', '\xE5', '\x90', '\x97', '\xE5', '\x90', '\xA7', '\xE5', '\x90', '\xAC', '\xE5', '\x91', '\xA2', '\xE5', '\x93', '\x81', '\xE5', '\x93', '\x8D', '\xE5', '\x97', '\x8E', /* 即吗吧听呢品响嗎 */ '\xE5', '\xB8', '\x88', '\xE5', '\xB8', '\xAB', '\xE6', '\x94', '\xB6', '\xE6', '\x96', '\xAD', '\xE6', '\x96', '\xB7', '\xE6', '\x98', '\x8E', '\xE7', '\x9C', '\xBC', '\xE9', '\x96', '\x93', /* 师師收断斷明眼間 */ '\xE9', '\x97', '\xB4', '\xE9', '\x99', '\x85', '\xE9', '\x99', '\x88', '\xE9', '\x99', '\x90', '\xE9', '\x99', '\xA4', '\xE9', '\x99', '\xB3', '\xE9', '\x9A', '\x8F', '\xE9', '\x9A', '\x9B', /* 间际陈限除陳随際 */ @@ -95,8 +104,7 @@ '\xE4', '\xBA', '\x8B', '\xE5', '\x89', '\x8D', '\xE5', '\xAD', '\xB8', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE6', '\x83', '\x85', '\xE6', '\x83', '\xB3', '\xE6', '\x88', '\x96', /* 事前學将將情想或 */ '\xE6', '\x94', '\xBF', '\xE6', '\x96', '\xAF', '\xE6', '\x96', '\xB0', '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE6', '\xB0', '\x91', '\xE6', '\xB2', '\x92', '\xE6', '\xB2', '\xA1', /* 政斯新样樣民沒没 */ '\xE7', '\x84', '\xB6', '\xE7', '\x89', '\xB9', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x83', '\xE7', '\xAC', '\xAC', '\xE7', '\xB6', '\x93', '\xE8', '\xB0', '\x81', /* 然特现現球第經谁 */ - '\xE8', '\xB5', '\xB7', /* 起 */ - '\0', + '\xE8', '\xB5', '\xB7', '|', /* 起 | */ '\xE4', '\xBE', '\x8B', '\xE5', '\x88', '\xA5', '\xE5', '\x88', '\xAB', '\xE5', '\x88', '\xB6', '\xE5', '\x8A', '\xA8', '\xE5', '\x8B', '\x95', '\xE5', '\x90', '\x97', '\xE5', '\x97', '\x8E', /* 例別别制动動吗嗎 */ '\xE5', '\xA2', '\x9E', '\xE6', '\x8C', '\x87', '\xE6', '\x98', '\x8E', '\xE6', '\x9C', '\x9D', '\xE6', '\x9C', '\x9F', '\xE6', '\x9E', '\x84', '\xE7', '\x89', '\xA9', '\xE7', '\xA1', '\xAE', /* 增指明朝期构物确 */ '\xE7', '\xA7', '\x8D', '\xE8', '\xAA', '\xBF', '\xE8', '\xB0', '\x83', '\xE8', '\xB2', '\xBB', '\xE8', '\xB4', '\xB9', '\xE9', '\x82', '\xA3', '\xE9', '\x83', '\xBD', '\xE9', '\x96', '\x93', /* 种調调費费那都間 */ @@ -113,14 +121,21 @@ af_blue_stringsets[] = { /* */ - { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, - { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 }, - { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, - { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | - AF_BLUE_PROPERTY_LATIN_X_HEIGHT }, - { AF_BLUE_STRING_LATIN_SMALL, 0 }, - { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 }, - { AF_BLUE_STRING_MAX, 0 }, + { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, + { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 }, + { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | + AF_BLUE_PROPERTY_LATIN_X_HEIGHT }, + { AF_BLUE_STRING_CYRILLIC_SMALL, 0 }, + { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 }, + { AF_BLUE_STRING_MAX, 0 }, + { AF_BLUE_STRING_DEVANAGARI_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, + { AF_BLUE_STRING_DEVANAGARI_HEAD, AF_BLUE_PROPERTY_LATIN_TOP }, + { AF_BLUE_STRING_DEVANAGARI_BASE, AF_BLUE_PROPERTY_LATIN_TOP | + AF_BLUE_PROPERTY_LATIN_NEUTRAL | + AF_BLUE_PROPERTY_LATIN_X_HEIGHT }, + { AF_BLUE_STRING_DEVANAGARI_BASE, 0 }, + { AF_BLUE_STRING_DEVANAGARI_BOTTOM, 0 }, + { AF_BLUE_STRING_MAX, 0 }, { AF_BLUE_STRING_GREEK_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM, 0 }, { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, @@ -129,35 +144,31 @@ { AF_BLUE_STRING_GREEK_SMALL, 0 }, { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0 }, { AF_BLUE_STRING_MAX, 0 }, - { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, - { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 }, - { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | - AF_BLUE_PROPERTY_LATIN_X_HEIGHT }, - { AF_BLUE_STRING_CYRILLIC_SMALL, 0 }, - { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 }, - { AF_BLUE_STRING_MAX, 0 }, { AF_BLUE_STRING_HEBREW_TOP, AF_BLUE_PROPERTY_LATIN_TOP | AF_BLUE_PROPERTY_LATIN_LONG }, { AF_BLUE_STRING_HEBREW_BOTTOM, 0 }, { AF_BLUE_STRING_HEBREW_DESCENDER, 0 }, { AF_BLUE_STRING_MAX, 0 }, + { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, + { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 }, + { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, + { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | + AF_BLUE_PROPERTY_LATIN_X_HEIGHT }, + { AF_BLUE_STRING_LATIN_SMALL, 0 }, + { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 }, + { AF_BLUE_STRING_MAX, 0 }, + { AF_BLUE_STRING_TELUGU_TOP, AF_BLUE_PROPERTY_LATIN_TOP }, + { AF_BLUE_STRING_TELUGU_BOTTOM, 0 }, + { AF_BLUE_STRING_MAX, 0 }, #ifdef AF_CONFIG_OPTION_CJK - { AF_BLUE_STRING_CJK_TOP_FILL, AF_BLUE_PROPERTY_CJK_TOP | - AF_BLUE_PROPERTY_CJK_FILL }, - { AF_BLUE_STRING_CJK_TOP_UNFILL, AF_BLUE_PROPERTY_CJK_TOP }, - { AF_BLUE_STRING_CJK_BOTTOM_FILL, AF_BLUE_PROPERTY_CJK_FILL }, - { AF_BLUE_STRING_CJK_BOTTOM_UNFILL, 0 }, + { AF_BLUE_STRING_CJK_TOP, AF_BLUE_PROPERTY_CJK_TOP }, + { AF_BLUE_STRING_CJK_BOTTOM, 0 }, #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT - { AF_BLUE_STRING_CJK_LEFT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ | - AF_BLUE_PROPERTY_CJK_FILL }, - { AF_BLUE_STRING_CJK_LEFT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ }, - { AF_BLUE_STRING_CJK_RIGHT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ | - AF_BLUE_PROPERTY_CJK_RIGHT | - AF_BLUE_PROPERTY_CJK_FILL }, - { AF_BLUE_STRING_CJK_RIGHT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ | - AF_BLUE_PROPERTY_CJK_RIGHT }, + { AF_BLUE_STRING_CJK_LEFT, AF_BLUE_PROPERTY_CJK_HORIZ }, + { AF_BLUE_STRING_CJK_RIGHT, AF_BLUE_PROPERTY_CJK_HORIZ | + AF_BLUE_PROPERTY_CJK_RIGHT }, #endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */ - { AF_BLUE_STRING_MAX, 0 }, + { AF_BLUE_STRING_MAX, 0 }, #endif /* AF_CONFIG_OPTION_CJK */ }; diff --git a/freetype/src/autofit/afblue.dat b/freetype/src/autofit/afblue.dat index d488f3fae..3f98c13b2 100644 --- a/freetype/src/autofit/afblue.dat +++ b/freetype/src/autofit/afblue.dat @@ -2,7 +2,7 @@ // // Auto-fitter data for blue strings. // -// Copyright 2013 by +// Copyright 2013, 2014 by // David Turner, Robert Wilhelm, and Werner Lemberg. // // This file is part of the FreeType project, and may only be used, @@ -34,11 +34,11 @@ // using C syntax. There can be only one string per line, thus the // starting and ending double quote must be the first and last character // in the line, respectively, ignoring whitespace before and after the -// string. If there are multiple strings (in multiple lines), they are -// concatenated to a single string. In the output, a string gets -// represented as a series of singles bytes, followed by a zero byte. The -// enumeration values simply hold byte offsets to the start of the -// corresponding strings. +// string. Space characters within the string are ignored too. If there +// are multiple strings (in multiple lines), they are concatenated to a +// single string. In the output, a string gets represented as a series of +// singles bytes, followed by a zero byte. The enumeration values simply +// hold byte offsets to the start of the corresponding strings. // // - Data blocks enclosed in balanced braces, which get copied verbatim and // which can span multiple lines. The opening brace of a block must be @@ -63,18 +63,32 @@ // characters, not bytes. +// The blue zone string data, to be used in the blue stringsets below. + AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN: - AF_BLUE_STRING_LATIN_CAPITAL_TOP - "THEZOCQS" - AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM - "HEZLOCUS" - AF_BLUE_STRING_LATIN_SMALL_F_TOP - "fijkdbh" - AF_BLUE_STRING_LATIN_SMALL - "xzroesc" - AF_BLUE_STRING_LATIN_SMALL_DESCENDER - "pqgjy" + AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP + "БВЕПЗОСЭ" + AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM + "БВЕШЗОСЭ" + AF_BLUE_STRING_CYRILLIC_SMALL + "хпншезос" + AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER + "руф" + + // we separate the letters with spaces to avoid ligatures; + // this is just for convenience to simplify reading + AF_BLUE_STRING_DEVANAGARI_BASE + "क म अ आ थ ध भ श" + AF_BLUE_STRING_DEVANAGARI_TOP + "ई ऐ ओ औ ि ी ो ौ" + // note that some fonts have extreme variation in the height of the + // round head elements; for this reason we also define the `base' + // blue zone, which must be always present + AF_BLUE_STRING_DEVANAGARI_HEAD + "क म अ आ थ ध भ श" + AF_BLUE_STRING_DEVANAGARI_BOTTOM + "ु ृ" AF_BLUE_STRING_GREEK_CAPITAL_TOP "ΓΒΕΖΘΟΩ" @@ -87,15 +101,6 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN: AF_BLUE_STRING_GREEK_SMALL_DESCENDER "βγημρφχψ" - AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP - "БВЕПЗОСЭ" - AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM - "БВЕШЗОСЭ" - AF_BLUE_STRING_CYRILLIC_SMALL - "хпншезос" - AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER - "руф" - AF_BLUE_STRING_HEBREW_TOP "בדהחךכםס" AF_BLUE_STRING_HEBREW_BOTTOM @@ -103,24 +108,41 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN: AF_BLUE_STRING_HEBREW_DESCENDER "קךןףץ" + AF_BLUE_STRING_LATIN_CAPITAL_TOP + "THEZOCQS" + AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM + "HEZLOCUS" + AF_BLUE_STRING_LATIN_SMALL_F_TOP + "fijkdbh" + AF_BLUE_STRING_LATIN_SMALL + "xzroesc" + AF_BLUE_STRING_LATIN_SMALL_DESCENDER + "pqgjy" + + // we separate the letters with spaces to avoid ligatures; + // this is just for convenience to simplify reading + AF_BLUE_STRING_TELUGU_TOP + "ఇ ఌ ఙ ఞ ణ ఱ ౯" + + AF_BLUE_STRING_TELUGU_BOTTOM + "అ క చ ర ఽ ౨ ౬" + #ifdef AF_CONFIG_OPTION_CJK - AF_BLUE_STRING_CJK_TOP_FILL + AF_BLUE_STRING_CJK_TOP "他们你來們到和地" "对對就席我时時會" "来為能舰說说这這" - "齊" - AF_BLUE_STRING_CJK_TOP_UNFILL + "齊 |" "军同已愿既星是景" "民照现現理用置要" "軍那配里開雷露面" "顾" - AF_BLUE_STRING_CJK_BOTTOM_FILL + AF_BLUE_STRING_CJK_BOTTOM "个为人他以们你來" "個們到和大对對就" "我时時有来為要說" - "说" - AF_BLUE_STRING_CJK_BOTTOM_UNFILL + "说 |" "主些因它想意理生" "當看着置者自著裡" "过还进進過道還里" @@ -128,22 +150,20 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN: #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT - AF_BLUE_STRING_CJK_LEFT_FILL + AF_BLUE_STRING_CJK_LEFT "些们你來們到和地" "她将將就年得情最" "样樣理能說说这這" - "通" - AF_BLUE_STRING_CJK_LEFT_UNFILL + "通 |" "即吗吧听呢品响嗎" "师師收断斷明眼間" "间际陈限除陳随際" "隨" - AF_BLUE_STRING_CJK_RIGHT_FILL + AF_BLUE_STRING_CJK_RIGHT "事前學将將情想或" "政斯新样樣民沒没" "然特现現球第經谁" - "起" - AF_BLUE_STRING_CJK_RIGHT_UNFILL + "起 |" "例別别制动動吗嗎" "增指明朝期构物确" "种調调費费那都間" @@ -154,17 +174,118 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN: #endif /* AF_CONFIG_OPTION_CJK */ +// The blue zone stringsets, as used in the script styles, cf. `afstyles.h'. +// +// The AF_BLUE_PROPERTY_XXX flags are defined in `afblue.h'; here some +// explanations. +// +// A blue zone in general is defined by a reference and an overshoot line. +// During the hinting process, all coordinate values between those two lines +// are set equal to the reference value, provided that the blue zone is not +// wider than 0.75 pixels (otherwise the blue zone gets ignored). All +// entries must have `AF_BLUE_STRING_MAX' as the final line. +// +// During the glyph analysis, edges are sorted from bottom to top, and then +// sequentially checked, edge by edge, against the blue zones in the order +// given below. +// +// +// latin auto-hinter +// ----------------- +// +// Characters in a blue string are automatically classified as having a flat +// (reference) or a round (overshoot) extremum. The blue zone is then set +// up by the mean values of all flat extrema and all round extrema, +// respectively. Only horizontal blue zones (i.e., adjusting vertical +// coordinate values) are supported. +// +// For the latin auto-hinter, the overshoot should be larger than the +// reference for top zones, and vice versa for bottom zones. +// +// LATIN_TOP +// Take the maximum flat and round coordinate values of the blue string +// characters for computing the blue zone's reference and overshoot +// values. +// +// If not set, take the minimum values. +// +// LATIN_NEUTRAL +// Ignore round extrema and define the blue zone with flat values only. +// Both top and bottom of contours can match. This is useful for +// scripts like Devanagari where vowel signs attach to the base +// character and are implemented as components of composite glyphs. +// +// If not set, both round and flat extrema are taken into account. +// Additionally, only the top or the bottom of a contour can match, +// depending on the LATIN_TOP flag. +// +// Neutral blue zones should always follow non-neutral blue zones. +// +// LATIN_X_HEIGHT +// Scale all glyphs vertically from the corresponding script to make the +// reference line of this blue zone align on the grid. The scaling +// takes place before all other blue zones get aligned to the grid. +// Only one blue character string of a script style can have this flag. +// +// LATIN_LONG +// Apply an additional constraint for blue zone values: Don't +// necessarily use the extremum as-is but a segment of the topmost (or +// bottommost) contour that is longer than a heuristic threshold, and +// which is not too far away vertically from the real extremum. This +// ensures that small bumps in the outline are ignored (for example, the +// `vertical serifs' found in many Hebrew glyph designs). +// +// The segment must be at least EM/25 font units long, and the distance +// to the extremum must be smaller than EM/4. +// +// +// cjk auto-hinter +// --------------- +// +// Characters in a blue string are *not* automatically classified. Instead, +// first come the characters used for the overshoot value, then the +// character `|', then the characters used for the reference value. The +// blue zone is then set up by the mean values of all reference values and +// all overshoot values, respectively. Both horizontal and vertical blue +// zones (i.e., adjusting vertical and horizontal coordinate values, +// respectively) are supported. +// +// For the cjk auto-hinter, the overshoot should be smaller than the +// reference for top zones, and vice versa for bottom zones. +// +// CJK_TOP +// Take the maximum flat and round coordinate values of the blue string +// characters. If not set, take the minimum values. +// +// CJK_RIGHT +// A synonym for CJK_TOP. If CJK_HORIZ is set, this flag indicates the +// right blue zone, taking horizontal maximum values. +// +// CJK_HORIZ +// Define a blue zone for horizontal hinting (i.e., vertical blue +// zones). If not set, this is a blue zone for vertical hinting. + + AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN: - AF_BLUE_STRINGSET_LATN - { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP } - { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 } - { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP } - { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | - AF_BLUE_PROPERTY_LATIN_X_HEIGHT } - { AF_BLUE_STRING_LATIN_SMALL, 0 } - { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 } - { AF_BLUE_STRING_MAX, 0 } + AF_BLUE_STRINGSET_CYRL + { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP } + { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 } + { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | + AF_BLUE_PROPERTY_LATIN_X_HEIGHT } + { AF_BLUE_STRING_CYRILLIC_SMALL, 0 } + { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 } + { AF_BLUE_STRING_MAX, 0 } + + AF_BLUE_STRINGSET_DEVA + { AF_BLUE_STRING_DEVANAGARI_TOP, AF_BLUE_PROPERTY_LATIN_TOP } + { AF_BLUE_STRING_DEVANAGARI_HEAD, AF_BLUE_PROPERTY_LATIN_TOP } + { AF_BLUE_STRING_DEVANAGARI_BASE, AF_BLUE_PROPERTY_LATIN_TOP | + AF_BLUE_PROPERTY_LATIN_NEUTRAL | + AF_BLUE_PROPERTY_LATIN_X_HEIGHT } + { AF_BLUE_STRING_DEVANAGARI_BASE, 0 } + { AF_BLUE_STRING_DEVANAGARI_BOTTOM, 0 } + { AF_BLUE_STRING_MAX, 0 } AF_BLUE_STRINGSET_GREK { AF_BLUE_STRING_GREEK_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP } @@ -176,15 +297,6 @@ AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN: { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0 } { AF_BLUE_STRING_MAX, 0 } - AF_BLUE_STRINGSET_CYRL - { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP } - { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 } - { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | - AF_BLUE_PROPERTY_LATIN_X_HEIGHT } - { AF_BLUE_STRING_CYRILLIC_SMALL, 0 } - { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 } - { AF_BLUE_STRING_MAX, 0 } - AF_BLUE_STRINGSET_HEBR { AF_BLUE_STRING_HEBREW_TOP, AF_BLUE_PROPERTY_LATIN_TOP | AF_BLUE_PROPERTY_LATIN_LONG } @@ -192,25 +304,32 @@ AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN: { AF_BLUE_STRING_HEBREW_DESCENDER, 0 } { AF_BLUE_STRING_MAX, 0 } + AF_BLUE_STRINGSET_LATN + { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP } + { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 } + { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP } + { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP | + AF_BLUE_PROPERTY_LATIN_X_HEIGHT } + { AF_BLUE_STRING_LATIN_SMALL, 0 } + { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 } + { AF_BLUE_STRING_MAX, 0 } + + AF_BLUE_STRINGSET_TELU + { AF_BLUE_STRING_TELUGU_TOP, AF_BLUE_PROPERTY_LATIN_TOP } + { AF_BLUE_STRING_TELUGU_BOTTOM, 0 } + { AF_BLUE_STRING_MAX, 0 } + #ifdef AF_CONFIG_OPTION_CJK AF_BLUE_STRINGSET_HANI - { AF_BLUE_STRING_CJK_TOP_FILL, AF_BLUE_PROPERTY_CJK_TOP | - AF_BLUE_PROPERTY_CJK_FILL } - { AF_BLUE_STRING_CJK_TOP_UNFILL, AF_BLUE_PROPERTY_CJK_TOP } - { AF_BLUE_STRING_CJK_BOTTOM_FILL, AF_BLUE_PROPERTY_CJK_FILL } - { AF_BLUE_STRING_CJK_BOTTOM_UNFILL, 0 } + { AF_BLUE_STRING_CJK_TOP, AF_BLUE_PROPERTY_CJK_TOP } + { AF_BLUE_STRING_CJK_BOTTOM, 0 } #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT - { AF_BLUE_STRING_CJK_LEFT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ | - AF_BLUE_PROPERTY_CJK_FILL } - { AF_BLUE_STRING_CJK_LEFT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ } - { AF_BLUE_STRING_CJK_RIGHT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ | - AF_BLUE_PROPERTY_CJK_RIGHT | - AF_BLUE_PROPERTY_CJK_FILL } - { AF_BLUE_STRING_CJK_RIGHT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ | - AF_BLUE_PROPERTY_CJK_RIGHT } + { AF_BLUE_STRING_CJK_LEFT, AF_BLUE_PROPERTY_CJK_HORIZ } + { AF_BLUE_STRING_CJK_RIGHT, AF_BLUE_PROPERTY_CJK_HORIZ | + AF_BLUE_PROPERTY_CJK_RIGHT } #endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */ - { AF_BLUE_STRING_MAX, 0 } + { AF_BLUE_STRING_MAX, 0 } #endif /* AF_CONFIG_OPTION_CJK */ diff --git a/freetype/src/autofit/afblue.h b/freetype/src/autofit/afblue.h index 6f336abc0..a86184191 100644 --- a/freetype/src/autofit/afblue.h +++ b/freetype/src/autofit/afblue.h @@ -7,7 +7,7 @@ /* */ /* Auto-fitter data for blue strings (specification). */ /* */ -/* Copyright 2013 by */ +/* Copyright 2013, 2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -67,42 +67,44 @@ FT_BEGIN_HEADER /* At the bottommost level, we define strings for finding blue zones. */ -#define AF_BLUE_STRING_MAX_LEN 25 +#define AF_BLUE_STRING_MAX_LEN 51 /* The AF_Blue_String enumeration values are offsets into the */ /* `af_blue_strings' array. */ typedef enum AF_Blue_String_ { - AF_BLUE_STRING_LATIN_CAPITAL_TOP = 0, - AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 9, - AF_BLUE_STRING_LATIN_SMALL_F_TOP = 18, - AF_BLUE_STRING_LATIN_SMALL = 26, - AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 34, - AF_BLUE_STRING_GREEK_CAPITAL_TOP = 40, - AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 55, - AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 68, - AF_BLUE_STRING_GREEK_SMALL = 81, - AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 98, - AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 115, - AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 132, - AF_BLUE_STRING_CYRILLIC_SMALL = 149, - AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 166, - AF_BLUE_STRING_HEBREW_TOP = 173, - AF_BLUE_STRING_HEBREW_BOTTOM = 190, - AF_BLUE_STRING_HEBREW_DESCENDER = 203, - af_blue_1_1 = 213, + AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 0, + AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 17, + AF_BLUE_STRING_CYRILLIC_SMALL = 34, + AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 51, + AF_BLUE_STRING_DEVANAGARI_BASE = 58, + AF_BLUE_STRING_DEVANAGARI_TOP = 83, + AF_BLUE_STRING_DEVANAGARI_HEAD = 108, + AF_BLUE_STRING_DEVANAGARI_BOTTOM = 133, + AF_BLUE_STRING_GREEK_CAPITAL_TOP = 140, + AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 155, + AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 168, + AF_BLUE_STRING_GREEK_SMALL = 181, + AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 198, + AF_BLUE_STRING_HEBREW_TOP = 215, + AF_BLUE_STRING_HEBREW_BOTTOM = 232, + AF_BLUE_STRING_HEBREW_DESCENDER = 245, + AF_BLUE_STRING_LATIN_CAPITAL_TOP = 256, + AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 265, + AF_BLUE_STRING_LATIN_SMALL_F_TOP = 274, + AF_BLUE_STRING_LATIN_SMALL = 282, + AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 290, + AF_BLUE_STRING_TELUGU_TOP = 296, + AF_BLUE_STRING_TELUGU_BOTTOM = 318, + af_blue_1_1 = 339, #ifdef AF_CONFIG_OPTION_CJK - AF_BLUE_STRING_CJK_TOP_FILL = af_blue_1_1 + 1, - AF_BLUE_STRING_CJK_TOP_UNFILL = af_blue_1_1 + 77, - AF_BLUE_STRING_CJK_BOTTOM_FILL = af_blue_1_1 + 153, - AF_BLUE_STRING_CJK_BOTTOM_UNFILL = af_blue_1_1 + 229, + AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1, + AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 153, af_blue_1_1_1 = af_blue_1_1 + 304, #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT - AF_BLUE_STRING_CJK_LEFT_FILL = af_blue_1_1_1 + 1, - AF_BLUE_STRING_CJK_LEFT_UNFILL = af_blue_1_1_1 + 77, - AF_BLUE_STRING_CJK_RIGHT_FILL = af_blue_1_1_1 + 153, - AF_BLUE_STRING_CJK_RIGHT_UNFILL = af_blue_1_1_1 + 229, + AF_BLUE_STRING_CJK_LEFT = af_blue_1_1_1 + 1, + AF_BLUE_STRING_CJK_RIGHT = af_blue_1_1_1 + 153, af_blue_1_1_2 = af_blue_1_1_1 + 304, #else af_blue_1_1_2 = af_blue_1_1_1 + 0, @@ -136,33 +138,35 @@ FT_BEGIN_HEADER /* Properties are specific to a writing system. We assume that a given */ /* blue string can't be used in more than a single writing system, which */ /* is a safe bet. */ -#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 ) -#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 1 ) -#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 2 ) +#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 ) /* must have value 1 */ +#define AF_BLUE_PROPERTY_LATIN_NEUTRAL ( 1 << 1 ) +#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 2 ) +#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 3 ) -#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 0 ) -#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 1 ) -#define AF_BLUE_PROPERTY_CJK_FILL ( 1 << 2 ) +#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 0 ) /* must have value 1 */ +#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 1 ) /* must have value 2 */ #define AF_BLUE_PROPERTY_CJK_RIGHT AF_BLUE_PROPERTY_CJK_TOP -#define AF_BLUE_STRINGSET_MAX_LEN 9 +#define AF_BLUE_STRINGSET_MAX_LEN 7 /* The AF_Blue_Stringset enumeration values are offsets into the */ /* `af_blue_stringsets' array. */ typedef enum AF_Blue_Stringset_ { - AF_BLUE_STRINGSET_LATN = 0, - AF_BLUE_STRINGSET_GREK = 7, - AF_BLUE_STRINGSET_CYRL = 14, - AF_BLUE_STRINGSET_HEBR = 20, - af_blue_2_1 = 24, + AF_BLUE_STRINGSET_CYRL = 0, + AF_BLUE_STRINGSET_DEVA = 6, + AF_BLUE_STRINGSET_GREK = 12, + AF_BLUE_STRINGSET_HEBR = 19, + AF_BLUE_STRINGSET_LATN = 23, + AF_BLUE_STRINGSET_TELU = 30, + af_blue_2_1 = 33, #ifdef AF_CONFIG_OPTION_CJK AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0, - af_blue_2_1_1 = af_blue_2_1 + 4, + af_blue_2_1_1 = af_blue_2_1 + 2, #ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT - af_blue_2_1_2 = af_blue_2_1_1 + 4, + af_blue_2_1_2 = af_blue_2_1_1 + 2, #else af_blue_2_1_2 = af_blue_2_1_1 + 0, #endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */ diff --git a/freetype/src/autofit/afblue.hin b/freetype/src/autofit/afblue.hin index 4fc991755..0b4b48d7f 100644 --- a/freetype/src/autofit/afblue.hin +++ b/freetype/src/autofit/afblue.hin @@ -4,7 +4,7 @@ /* */ /* Auto-fitter data for blue strings (specification). */ /* */ -/* Copyright 2013 by */ +/* Copyright 2013, 2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -96,13 +96,13 @@ FT_BEGIN_HEADER /* Properties are specific to a writing system. We assume that a given */ /* blue string can't be used in more than a single writing system, which */ /* is a safe bet. */ -#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 ) -#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 1 ) -#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 2 ) +#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 ) /* must have value 1 */ +#define AF_BLUE_PROPERTY_LATIN_NEUTRAL ( 1 << 1 ) +#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 2 ) +#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 3 ) -#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 0 ) -#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 1 ) -#define AF_BLUE_PROPERTY_CJK_FILL ( 1 << 2 ) +#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 0 ) /* must have value 1 */ +#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 1 ) /* must have value 2 */ #define AF_BLUE_PROPERTY_CJK_RIGHT AF_BLUE_PROPERTY_CJK_TOP diff --git a/freetype/src/autofit/afcjk.c b/freetype/src/autofit/afcjk.c index 360ecd935..8f2bd00ee 100644 --- a/freetype/src/autofit/afcjk.c +++ b/freetype/src/autofit/afcjk.c @@ -4,7 +4,7 @@ /* */ /* Auto-fitter hinting routines for CJK writing system (body). */ /* */ -/* Copyright 2006-2013 by */ +/* Copyright 2006-2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -178,6 +178,8 @@ goto Exit; af_latin_hints_link_segments( hints, + 0, + NULL, (AF_Dimension)dim ); seg = axhints->segments; @@ -261,6 +263,8 @@ FT_Int num_fills; FT_Int num_flats; + FT_Bool fill; + AF_CJKBlue blue; FT_Error error; AF_CJKAxis axis; @@ -271,22 +275,6 @@ AF_Blue_Stringset bss = sc->blue_stringset; const AF_Blue_StringRec* bs = &af_blue_stringsets[bss]; -#ifdef FT_DEBUG_LEVEL_TRACE - FT_String* cjk_blue_name[4] = - { - (FT_String*)"bottom", /* -- , -- */ - (FT_String*)"top", /* -- , TOP */ - (FT_String*)"left", /* HORIZ, -- */ - (FT_String*)"right" /* HORIZ, TOP */ - }; - - FT_String* cjk_blue_type_name[2] = - { - (FT_String*)"unfilled", /* -- */ - (FT_String*)"filled" /* FILL */ - }; -#endif - /* we walk over the blue character strings as specified in the */ /* style's entry in the `af_blue_stringset' array, computing its */ @@ -308,15 +296,29 @@ else axis = &metrics->axis[AF_DIMENSION_VERT]; - FT_TRACE5(( "blue zone %d:\n", axis->blue_count )); +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_String* cjk_blue_name[4] = + { + (FT_String*)"bottom", /* -- , -- */ + (FT_String*)"top", /* -- , TOP */ + (FT_String*)"left", /* HORIZ, -- */ + (FT_String*)"right" /* HORIZ, TOP */ + }; + + + FT_TRACE5(( "blue zone %d (%s):\n", + axis->blue_count, + cjk_blue_name[AF_CJK_IS_HORIZ_BLUE( bs ) | + AF_CJK_IS_TOP_BLUE( bs ) ] )); + } +#endif /* FT_DEBUG_LEVEL_TRACE */ num_fills = 0; num_flats = 0; - FT_TRACE5(( " cjk blue %s/%s\n", - cjk_blue_name[AF_CJK_IS_HORIZ_BLUE( bs ) | - AF_CJK_IS_TOP_BLUE( bs ) ], - cjk_blue_type_name[!!AF_CJK_IS_FILLED_BLUE( bs )] )); + fill = 1; /* start with characters that define fill values */ + FT_TRACE5(( " [overshoot values]\n" )); while ( *p ) { @@ -330,6 +332,14 @@ GET_UTF8_CHAR( ch, p ); + /* switch to characters that define flat values */ + if ( ch == '|' ) + { + fill = 0; + FT_TRACE5(( " [reference values]\n" )); + continue; + } + /* load the character in the face -- skip unknown or empty ones */ af_get_char_index( &metrics->root, ch, &glyph_index, &y_offset ); if ( glyph_index == 0 ) @@ -417,7 +427,7 @@ FT_TRACE5(( " U+%04lX: best_pos = %5ld\n", ch, best_pos )); } - if ( AF_CJK_IS_FILLED_BLUE( bs ) ) + if ( fill ) fills[num_fills++] = best_pos; else flats[num_flats++] = best_pos; @@ -429,15 +439,15 @@ * we couldn't find a single glyph to compute this blue zone, * we will simply ignore it then */ - FT_TRACE5(( " empty\n" )); + FT_TRACE5(( " empty\n" )); continue; } - /* we have computed the contents of the `fill' and `flats' tables, */ - /* now determine the reference position of the blue zone -- */ - /* we simply take the median value after a simple sort */ - af_sort_pos( num_flats, flats ); + /* we have computed the contents of the `fill' and `flats' tables, */ + /* now determine the reference and overshoot position of the blue -- */ + /* we simply take the median value after a simple sort */ af_sort_pos( num_fills, fills ); + af_sort_pos( num_flats, flats ); blue = &axis->blues[axis->blue_count]; blue_ref = &blue->ref.org; @@ -476,7 +486,7 @@ *blue_ref = *blue_shoot = ( shoot + ref ) / 2; - FT_TRACE5(( " [overshoot smaller than reference," + FT_TRACE5(( " [reference smaller than overshoot," " taking mean value]\n" )); } } @@ -755,10 +765,6 @@ /* now compare each segment to the others */ for ( seg1 = segments; seg1 < segment_limit; seg1++ ) { - /* the fake segments are for metrics hinting only */ - if ( seg1->first == seg1->last ) - continue; - if ( seg1->dir != major_dir ) continue; @@ -1018,10 +1024,11 @@ edge->first = seg; edge->last = seg; + edge->dir = seg->dir; edge->fpos = seg->pos; - edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); + edge->opos = FT_MulFix( seg->pos, scale ); + edge->pos = edge->opos; seg->edge_next = seg; - edge->dir = seg->dir; } else { @@ -1230,8 +1237,10 @@ /* zone, check for left edges */ /* */ /* of course, that's for TrueType */ - is_top_right_blue = FT_BOOL( blue->flags & AF_CJK_BLUE_TOP ); - is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); + is_top_right_blue = + (FT_Byte)( ( blue->flags & AF_CJK_BLUE_TOP ) != 0 ); + is_major_dir = + FT_BOOL( edge->dir == axis->major_dir ); /* if it is a top zone, the edge must be against the major */ /* direction; if it is a bottom zone, it must be in the major */ @@ -1528,6 +1537,12 @@ stem_edge->pos = base_edge->pos + fitted_width; + + FT_TRACE5(( " CJKLINK: edge %d @%d (opos=%.2f) linked to %.2f," + " dist was %.2f, now %.2f\n", + stem_edge - hints->axis[dim].edges, stem_edge->fpos, + stem_edge->opos / 64.0, stem_edge->pos / 64.0, + dist / 64.0, fitted_width / 64.0 )); } diff --git a/freetype/src/autofit/afcjk.h b/freetype/src/autofit/afcjk.h index a260b0911..4dd4f3917 100644 --- a/freetype/src/autofit/afcjk.h +++ b/freetype/src/autofit/afcjk.h @@ -4,7 +4,7 @@ /* */ /* Auto-fitter hinting routines for CJK writing system (specification). */ /* */ -/* Copyright 2006, 2007, 2011-2013 by */ +/* Copyright 2006, 2007, 2011-2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -50,8 +50,6 @@ FT_BEGIN_HEADER ( (b)->properties & AF_BLUE_PROPERTY_CJK_TOP ) #define AF_CJK_IS_HORIZ_BLUE( b ) \ ( (b)->properties & AF_BLUE_PROPERTY_CJK_HORIZ ) -#define AF_CJK_IS_FILLED_BLUE( b ) \ - ( (b)->properties & AF_BLUE_PROPERTY_CJK_FILL ) #define AF_CJK_IS_RIGHT_BLUE AF_CJK_IS_TOP_BLUE #define AF_CJK_MAX_WIDTHS 16 diff --git a/freetype/src/autofit/afglobal.c b/freetype/src/autofit/afglobal.c index 7aa2e1102..a54c20c02 100644 --- a/freetype/src/autofit/afglobal.c +++ b/freetype/src/autofit/afglobal.c @@ -138,7 +138,7 @@ FT_Byte* gstyles = globals->glyph_styles; FT_UInt ss; FT_UInt i; - FT_UInt dflt = -1; + FT_UInt dflt = ~0U; /* a non-valid value */ /* the value AF_STYLE_UNASSIGNED means `uncovered glyph' */ @@ -176,7 +176,8 @@ */ if ( style_class->coverage == AF_COVERAGE_DEFAULT ) { - if ( style_class->script == globals->module->default_script ) + if ( (FT_UInt)style_class->script == + globals->module->default_script ) dflt = ss; for ( range = script_class->script_uni_ranges; @@ -332,8 +333,8 @@ af_face_globals_free( globals ); globals = NULL; } - - globals->increase_x_height = AF_PROP_INCREASE_X_HEIGHT_MAX; + else + globals->increase_x_height = AF_PROP_INCREASE_X_HEIGHT_MAX; Exit: *aglobals = globals; diff --git a/freetype/src/autofit/afglobal.h b/freetype/src/autofit/afglobal.h index d2da40e3c..38d8d6952 100644 --- a/freetype/src/autofit/afglobal.h +++ b/freetype/src/autofit/afglobal.h @@ -66,16 +66,16 @@ FT_BEGIN_HEADER /* index of fallback style in `af_style_classes' */ #ifdef AF_CONFIG_OPTION_CJK -#define AF_STYLE_FALLBACK AF_STYLE_HANI_DFLT +#define AF_STYLE_FALLBACK AF_STYLE_HANI_DFLT #else -#define AF_STYLE_FALLBACK AF_STYLE_NONE_DFLT +#define AF_STYLE_FALLBACK AF_STYLE_NONE_DFLT #endif /* default script for OpenType; ignored if HarfBuzz isn't used */ -#define AF_SCRIPT_DEFAULT AF_SCRIPT_LATN +#define AF_SCRIPT_DEFAULT AF_SCRIPT_LATN /* a bit mask indicating an uncovered glyph */ #define AF_STYLE_UNASSIGNED 0x7F /* if this flag is set, we have an ASCII digit */ -#define AF_DIGIT 0x80 +#define AF_DIGIT 0x80 /* `increase-x-height' property */ #define AF_PROP_INCREASE_X_HEIGHT_MIN 6 diff --git a/freetype/src/autofit/afhints.c b/freetype/src/autofit/afhints.c index d9fb13364..4aa64bb4b 100644 --- a/freetype/src/autofit/afhints.c +++ b/freetype/src/autofit/afhints.c @@ -74,7 +74,8 @@ } - /* Get new edge for given axis, direction, and position. */ + /* Get new edge for given axis, direction, and position, */ + /* without initializing the edge itself. */ FT_LOCAL( FT_Error ) af_axis_hints_new_edge( AF_AxisHints axis, @@ -130,10 +131,6 @@ axis->num_edges++; - FT_ZERO( edge ); - edge->fpos = (FT_Short)fpos; - edge->dir = (FT_Char)dir; - Exit: *anedge = edge; return error; @@ -183,7 +180,7 @@ } -#define AF_INDEX_NUM( ptr, base ) ( (ptr) ? ( (ptr) - (base) ) : -1 ) +#define AF_INDEX_NUM( ptr, base ) (int)( (ptr) ? ( (ptr) - (base) ) : -1 ) #ifdef __cplusplus @@ -204,20 +201,15 @@ for ( point = points; point < limit; point++ ) AF_DUMP(( " [ %5d | %5d | %5d | %6.2f | %6.2f" - " | %5.2f | %5.2f | %c%c%c%c%c%c ]\n", - point - points, + " | %5.2f | %5.2f | %c ]\n", + AF_INDEX_NUM( point, points ), point->fx, point->fy, point->ox / 64.0, point->oy / 64.0, point->x / 64.0, point->y / 64.0, - ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ', - ( point->flags & AF_FLAG_INFLECTION ) ? 'i' : ' ', - ( point->flags & AF_FLAG_EXTREMA_X ) ? '<' : ' ', - ( point->flags & AF_FLAG_EXTREMA_Y ) ? 'v' : ' ', - ( point->flags & AF_FLAG_ROUND_X ) ? '(' : ' ', - ( point->flags & AF_FLAG_ROUND_Y ) ? 'u' : ' ')); + ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ')); AF_DUMP(( "\n" )); } #ifdef __cplusplus @@ -289,7 +281,7 @@ AF_DUMP(( " [ %5d | %5.2g | %5s | %4d" " | %4d | %4d | %5d | %4d" " | %6d | %5d | %11s ]\n", - seg - segments, + AF_INDEX_NUM( seg, segments ), dimension == AF_DIMENSION_HORZ ? (int)seg->first->ox / 64.0 : (int)seg->first->oy / 64.0, @@ -420,7 +412,7 @@ for ( edge = edges; edge < limit; edge++ ) AF_DUMP(( " [ %5d | %5.2g | %5s | %4d" " | %5d | %c | %5.2f | %5.2f | %11s ]\n", - edge - edges, + AF_INDEX_NUM( edge, edges ), (int)edge->opos / 64.0, af_dir_str( (AF_Direction)edge->dir ), AF_INDEX_NUM( edge->link, edges ), @@ -651,6 +643,9 @@ for ( point = points; point < point_limit; point++, vec++, tag++ ) { + point->in_dir = (FT_Char)AF_DIR_NONE; + point->out_dir = (FT_Char)AF_DIR_NONE; + point->fx = (FT_Short)vec->x; point->fy = (FT_Short)vec->y; point->ox = point->x = FT_MulFix( vec->x, x_scale ) + x_delta; @@ -698,91 +693,186 @@ } } - /* compute directions of in & out vectors */ { - AF_Point first = points; - AF_Point prev = NULL; - FT_Pos in_x = 0; - FT_Pos in_y = 0; - AF_Direction in_dir = AF_DIR_NONE; - - FT_Pos last_good_in_x = 0; - FT_Pos last_good_in_y = 0; - + /* + * Compute directions of `in' and `out' vectors. + * + * Note that distances between points that are very near to each + * other are accumulated. In other words, the auto-hinter + * prepends the small vectors between near points to the first + * non-near vector. All intermediate points are tagged as + * weak; the directions are adjusted also to be equal to the + * accumulated one. + */ + + /* value 20 in `near_limit' is heuristic */ FT_UInt units_per_em = hints->metrics->scaler.face->units_per_EM; FT_Int near_limit = 20 * units_per_em / 2048; + FT_Int near_limit2 = 2 * near_limit - 1; + AF_Point* contour; + AF_Point* contour_limit = hints->contours + hints->num_contours; - for ( point = points; point < point_limit; point++ ) + + for ( contour = hints->contours; contour < contour_limit; contour++ ) { - AF_Point next; - FT_Pos out_x, out_y; + AF_Point first = *contour; + AF_Point next, prev, curr; + + FT_Pos out_x, out_y; + FT_Bool is_first; - if ( point == first ) + + /* since the first point of a contour could be part of a */ + /* series of near points, go backwards to find the first */ + /* non-near point and adjust `first' */ + + point = first; + prev = first->prev; + + while ( prev != first ) { - prev = first->prev; + out_x = point->fx - prev->fx; + out_y = point->fy - prev->fy; + + /* + * We use Taxicab metrics to measure the vector length. + * + * Note that the accumulated distances so far could have the + * opposite direction of the distance measured here. For this + * reason we use `near_limit2' for the comparison to get a + * non-near point even in the worst case. + */ + if ( FT_ABS( out_x ) + FT_ABS( out_y ) >= near_limit2 ) + break; + + point = prev; + prev = prev->prev; + } - in_x = first->fx - prev->fx; - in_y = first->fy - prev->fy; + /* adjust first point */ + first = point; - last_good_in_x = in_x; - last_good_in_y = in_y; + /* now loop over all points of the contour to get */ + /* `in' and `out' vector directions */ - if ( FT_ABS( in_x ) + FT_ABS( in_y ) < near_limit ) - { - /* search first non-near point to get a good `in_dir' value */ + curr = first; - AF_Point point_ = prev; + /* + * We abuse the `u' and `v' fields to store index deltas to the + * next and previous non-near point, respectively. + * + * To avoid problems with not having non-near points, we point to + * `first' by default as the next non-near point. + * + */ + curr->u = (FT_Pos)( first - curr ); + first->v = -curr->u; + out_x = 0; + out_y = 0; - while ( point_ != first ) - { - AF_Point prev_ = point_->prev; + is_first = 1; - FT_Pos in_x_ = point_->fx - prev_->fx; - FT_Pos in_y_ = point_->fy - prev_->fy; + for ( point = first; + point != first || is_first; + point = point->next ) + { + AF_Direction out_dir; - if ( FT_ABS( in_x_ ) + FT_ABS( in_y_ ) >= near_limit ) - { - last_good_in_x = in_x_; - last_good_in_y = in_y_; + is_first = 0; - break; - } + next = point->next; - point_ = prev_; - } + out_x += next->fx - point->fx; + out_y += next->fy - point->fy; + + if ( FT_ABS( out_x ) + FT_ABS( out_y ) < near_limit ) + { + next->flags |= AF_FLAG_WEAK_INTERPOLATION; + continue; + } + + curr->u = (FT_Pos)( next - curr ); + next->v = -curr->u; + + out_dir = af_direction_compute( out_x, out_y ); + + /* adjust directions for all points inbetween; */ + /* the loop also updates position of `curr' */ + curr->out_dir = (FT_Char)out_dir; + for ( curr = curr->next; curr != next; curr = curr->next ) + { + curr->in_dir = (FT_Char)out_dir; + curr->out_dir = (FT_Char)out_dir; } + next->in_dir = (FT_Char)out_dir; - in_dir = af_direction_compute( in_x, in_y ); - first = prev + 1; + curr->u = (FT_Pos)( first - curr ); + first->v = -curr->u; + + out_x = 0; + out_y = 0; } + } - point->in_dir = (FT_Char)in_dir; + /* + * The next step is to `simplify' an outline's topology so that we + * can identify local extrema more reliably: A series of + * non-horizontal or non-vertical vectors pointing into the same + * quadrant are handled as a single, long vector. From a + * topological point of the view, the intermediate points are of no + * interest and thus tagged as weak. + */ - /* check whether the current point is near to the previous one */ - /* (value 20 in `near_limit' is heuristic; we use Taxicab */ - /* metrics for the test) */ + for ( point = points; point < point_limit; point++ ) + { + if ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) + continue; - if ( FT_ABS( in_x ) + FT_ABS( in_y ) < near_limit ) - point->flags |= AF_FLAG_NEAR; - else + if ( point->in_dir == AF_DIR_NONE && + point->out_dir == AF_DIR_NONE ) { - last_good_in_x = in_x; - last_good_in_y = in_y; - } + /* check whether both vectors point into the same quadrant */ + + FT_Pos in_x, in_y; + FT_Pos out_x, out_y; + + AF_Point next_u = point + point->u; + AF_Point prev_v = point + point->v; + - next = point->next; - out_x = next->fx - point->fx; - out_y = next->fy - point->fy; + in_x = point->fx - prev_v->fx; + in_y = point->fy - prev_v->fy; + + out_x = next_u->fx - point->fx; + out_y = next_u->fy - point->fy; + + if ( ( in_x ^ out_x ) >= 0 && ( in_y ^ out_y ) >= 0 ) + { + /* yes, so tag current point as weak */ + /* and update index deltas */ + + point->flags |= AF_FLAG_WEAK_INTERPOLATION; + + prev_v->u = (FT_Pos)( next_u - prev_v ); + next_u->v = -prev_v->u; + } + } + } - in_dir = af_direction_compute( out_x, out_y ); - point->out_dir = (FT_Char)in_dir; + /* + * Finally, check for remaining weak points. Everything else not + * collected in edges so far is then implicitly classified as strong + * points. + */ - /* Check for weak points. The remaining points not collected */ - /* in edges are then implicitly classified as strong points. */ + for ( point = points; point < point_limit; point++ ) + { + if ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) + continue; if ( point->flags & AF_FLAG_CONTROL ) { @@ -799,18 +889,25 @@ goto Is_Weak_Point; } - /* test whether `in' and `out' direction is approximately */ - /* the same (and use the last good `in' vector in case */ - /* the current point is near to the previous one) */ - if ( ft_corner_is_flat( - point->flags & AF_FLAG_NEAR ? last_good_in_x : in_x, - point->flags & AF_FLAG_NEAR ? last_good_in_y : in_y, - out_x, - out_y ) ) { - /* current point lies on a straight, diagonal line */ - /* (more or less) */ - goto Is_Weak_Point; + AF_Point next_u = point + point->u; + AF_Point prev_v = point + point->v; + + + if ( ft_corner_is_flat( point->fx - prev_v->fx, + point->fy - prev_v->fy, + next_u->fx - point->fx, + next_u->fy - point->fy ) ) + { + /* either the `in' or the `out' vector is much more */ + /* dominant than the other one, so tag current point */ + /* as weak and update index deltas */ + + prev_v->u = (FT_Pos)( next_u - prev_v ); + next_u->v = -prev_v->u; + + goto Is_Weak_Point; + } } } else if ( point->in_dir == -point->out_dir ) @@ -818,9 +915,6 @@ /* current point forms a spike */ goto Is_Weak_Point; } - - in_x = out_x; - in_y = out_y; } } } @@ -977,8 +1071,7 @@ /* if this point is candidate to weak interpolation, we */ /* interpolate it after all strong points have been processed */ - if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) && - !( point->flags & AF_FLAG_INFLECTION ) ) + if ( ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ) continue; if ( dim == AF_DIMENSION_VERT ) diff --git a/freetype/src/autofit/afhints.h b/freetype/src/autofit/afhints.h index 5f1507f80..92101de7c 100644 --- a/freetype/src/autofit/afhints.h +++ b/freetype/src/autofit/afhints.h @@ -4,7 +4,7 @@ /* */ /* Auto-fitter hinting routines (specification). */ /* */ -/* Copyright 2003-2008, 2010-2012 by */ +/* Copyright 2003-2008, 2010-2012, 2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -72,13 +72,9 @@ FT_BEGIN_HEADER * `af_{cjk,latin,...}_hints_compute_segments' are the functions to * find segments in an outline. * - * A segment is a series of consecutive points that are approximately - * aligned along a coordinate axis. The analysis to do so is specific - * to a writing system. - * - * A segment must have at least two points, except in the case of - * `fake' segments that are generated to hint metrics appropriately, - * and which consist of a single point. + * A segment is a series of at least two consecutive points that are + * approximately aligned along a coordinate axis. The analysis to do + * so is specific to a writing system. * * * Edges @@ -148,7 +144,7 @@ FT_BEGIN_HEADER * Serifs are detected by `af_{cjk,latin,...}_hint_edges'. * * In comparison to a stem, a serif (as handled by the auto-hinter - * module which takes care of the `latin' writing system) has + * module that takes care of the `latin' writing system) has * * best segment_1 = segment_2 && best segment_2 != segment_1 * @@ -178,19 +174,19 @@ FT_BEGIN_HEADER * * Strong Points * - * Experience has shown that points which are not part of an edge need - * to be interpolated linearly between their two closest edges, even if - * these are not part of the contour of those particular points. - * Typical candidates for this are + * Experience has shown that points not part of an edge need to be + * interpolated linearly between their two closest edges, even if these + * are not part of the contour of those particular points. Typical + * candidates for this are * * - angle points (i.e., points where the `in' and `out' direction * differ greatly) * * - inflection points (i.e., where the `in' and `out' angles are the * same, but the curvature changes sign) [currently, such points - * aren't handled in the auto-hinter] + * aren't handled specially in the auto-hinter] * - * `af_glyph_hints_align_strong_points' is the function which takes + * `af_glyph_hints_align_strong_points' is the function that takes * care of such situations; it is equivalent to the TrueType `IP' * hinting instruction. * @@ -220,26 +216,12 @@ FT_BEGIN_HEADER AF_FLAG_CUBIC = 1 << 1, AF_FLAG_CONTROL = AF_FLAG_CONIC | AF_FLAG_CUBIC, - /* point extremum flags */ - AF_FLAG_EXTREMA_X = 1 << 2, - AF_FLAG_EXTREMA_Y = 1 << 3, - - /* point roundness flags */ - AF_FLAG_ROUND_X = 1 << 4, - AF_FLAG_ROUND_Y = 1 << 5, - /* point touch flags */ - AF_FLAG_TOUCH_X = 1 << 6, - AF_FLAG_TOUCH_Y = 1 << 7, + AF_FLAG_TOUCH_X = 1 << 2, + AF_FLAG_TOUCH_Y = 1 << 3, /* candidates for weak interpolation have this flag set */ - AF_FLAG_WEAK_INTERPOLATION = 1 << 8, - - /* all inflection points in the outline have this flag set */ - AF_FLAG_INFLECTION = 1 << 9, - - /* the current point is very near to another one */ - AF_FLAG_NEAR = 1 << 10 + AF_FLAG_WEAK_INTERPOLATION = 1 << 4 } AF_Flags; @@ -247,10 +229,11 @@ FT_BEGIN_HEADER /* edge hint flags */ typedef enum AF_Edge_Flags_ { - AF_EDGE_NORMAL = 0, - AF_EDGE_ROUND = 1 << 0, - AF_EDGE_SERIF = 1 << 1, - AF_EDGE_DONE = 1 << 2 + AF_EDGE_NORMAL = 0, + AF_EDGE_ROUND = 1 << 0, + AF_EDGE_SERIF = 1 << 1, + AF_EDGE_DONE = 1 << 2, + AF_EDGE_NEUTRAL = 1 << 3 /* set if edge aligns to a neutral blue zone */ } AF_Edge_Flags; diff --git a/freetype/src/autofit/aflatin.c b/freetype/src/autofit/aflatin.c index e6f4dfb05..40ec20faa 100644 --- a/freetype/src/autofit/aflatin.c +++ b/freetype/src/autofit/aflatin.c @@ -171,7 +171,15 @@ if ( error ) goto Exit; + /* + * We assume that the glyphs selected for the stem width + * computation are `featureless' enough so that the linking + * algorithm works fine without adjustments of its scoring + * function. + */ af_latin_hints_link_segments( hints, + 0, + NULL, (AF_Dimension)dim ); seg = axhints->segments; @@ -298,6 +306,14 @@ have_flag = 1; } + if ( AF_LATIN_IS_NEUTRAL_BLUE( bs ) ) + { + if ( have_flag ) + FT_TRACE5(( ", " )); + FT_TRACE5(( "neutral" )); + have_flag = 1; + } + if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) ) { if ( have_flag ) @@ -520,6 +536,13 @@ FT_Int last; FT_Bool hit; + /* we intentionally declare these two variables */ + /* outside of the loop since various compilers emit */ + /* incorrect warning messages otherwise, talking about */ + /* `possibly uninitialized variables' */ + FT_Int p_first = 0; /* make compiler happy */ + FT_Int p_last = 0; + FT_Bool left2right; @@ -552,7 +575,6 @@ { FT_Bool l2r; FT_Pos d; - FT_Int p_first, p_last; if ( !hit ) @@ -688,6 +710,13 @@ FT_CURVE_TAG( outline.tags[best_segment_last] ) != FT_CURVE_TAG_ON ); + if ( round && AF_LATIN_IS_NEUTRAL_BLUE( bs ) ) + { + /* only use flat segments for a neutral blue zone */ + FT_TRACE5(( " (round, skipped)\n" )); + continue; + } + FT_TRACE5(( " (%s)\n", round ? "round" : "flat" )); } @@ -758,6 +787,8 @@ blue->flags = 0; if ( AF_LATIN_IS_TOP_BLUE( bs ) ) blue->flags |= AF_LATIN_BLUE_TOP; + if ( AF_LATIN_IS_NEUTRAL_BLUE( bs ) ) + blue->flags |= AF_LATIN_BLUE_NEUTRAL; /* * The following flag is used later to adjust the y and x scales @@ -1262,17 +1293,19 @@ /* this is the start of a new segment! */ segment_dir = (AF_Direction)point->out_dir; - /* clear all segment fields */ error = af_axis_hints_new_segment( axis, memory, &segment ); if ( error ) goto Exit; - segment[0] = seg0; + /* clear all segment fields */ + segment[0] = seg0; + segment->dir = (FT_Char)segment_dir; min_pos = max_pos = point->u; segment->first = point; segment->last = point; - on_edge = 1; + + on_edge = 1; } point = point->next; @@ -1296,9 +1329,6 @@ FT_Pos last_v = last->v; - if ( first == last ) - continue; - if ( first_v < last_v ) { AF_Point p; @@ -1337,31 +1367,44 @@ } - /* Link segments to form stems and serifs. */ + /* Link segments to form stems and serifs. If `width_count' and */ + /* `widths' are non-zero, use them to fine-tune the scoring function. */ FT_LOCAL_DEF( void ) af_latin_hints_link_segments( AF_GlyphHints hints, + FT_UInt width_count, + AF_WidthRec* widths, AF_Dimension dim ) { AF_AxisHints axis = &hints->axis[dim]; AF_Segment segments = axis->segments; AF_Segment segment_limit = segments + axis->num_segments; - FT_Pos len_threshold, len_score; + FT_Pos len_threshold, len_score, dist_score, max_width; AF_Segment seg1, seg2; + if ( width_count ) + max_width = widths[width_count - 1].org; + else + max_width = 0; + + /* a heuristic value to set up a minimum value for overlapping */ len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 ); if ( len_threshold == 0 ) len_threshold = 1; + /* a heuristic value to weight lengths */ len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 ); + /* a heuristic value to weight distances (no call to */ + /* AF_LATIN_CONSTANT needed, since we work on multiples */ + /* of the stem width) */ + dist_score = 3000; + /* now compare each segment to the others */ for ( seg1 = segments; seg1 < segment_limit; seg1++ ) { - /* the fake segments are introduced to hint the metrics -- */ - /* we must never link them to anything */ - if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + if ( seg1->dir != axis->major_dir ) continue; /* search for stems having opposite directions, */ @@ -1375,10 +1418,9 @@ if ( seg1->dir + seg2->dir == 0 && pos2 > pos1 ) { /* compute distance between the two segments */ - FT_Pos dist = pos2 - pos1; - FT_Pos min = seg1->min_coord; - FT_Pos max = seg1->max_coord; - FT_Pos len, score; + FT_Pos min = seg1->min_coord; + FT_Pos max = seg1->max_coord; + FT_Pos len; if ( min < seg2->min_coord ) @@ -1388,15 +1430,49 @@ max = seg2->max_coord; /* compute maximum coordinate difference of the two segments */ + /* (this is, how much they overlap) */ len = max - min; if ( len >= len_threshold ) { - /* small coordinate differences cause a higher score, and */ - /* segments with a greater distance cause a higher score also */ - score = dist + len_score / len; + /* + * The score is the sum of two demerits indicating the + * `badness' of a fit, measured along the segments' main axis + * and orthogonal to it, respectively. + * + * o The less overlapping along the main axis, the worse it + * is, causing a larger demerit. + * + * o The nearer the orthogonal distance to a stem width, the + * better it is, causing a smaller demerit. For simplicity, + * however, we only increase the demerit for values that + * exceed the largest stem width. + */ + + FT_Pos dist = pos2 - pos1; + + FT_Pos dist_demerit, score; + + + if ( max_width ) + { + /* distance demerits are based on multiples of `max_width'; */ + /* we scale by 1024 for getting more precision */ + FT_Pos delta = ( dist << 10 ) / max_width - ( 1 << 10 ); + + + if ( delta > 10000 ) + dist_demerit = 32000; + else if ( delta > 0 ) + dist_demerit = delta * delta / dist_score; + else + dist_demerit = 0; + } + else + dist_demerit = dist; /* default if no widths available */ + + score = dist_demerit + len_score / len; /* and we search for the smallest score */ - /* of the sum of the two values */ if ( score < seg1->score ) { seg1->score = score; @@ -1728,6 +1804,8 @@ FT_LOCAL_DEF( FT_Error ) af_latin_hints_detect_features( AF_GlyphHints hints, + FT_UInt width_count, + AF_WidthRec* widths, AF_Dimension dim ) { FT_Error error; @@ -1736,7 +1814,7 @@ error = af_latin_hints_compute_segments( hints, dim ); if ( !error ) { - af_latin_hints_link_segments( hints, dim ); + af_latin_hints_link_segments( hints, width_count, widths, dim ); error = af_latin_hints_compute_edges( hints, dim ); } @@ -1765,8 +1843,9 @@ for ( ; edge < edge_limit; edge++ ) { FT_UInt bb; - AF_Width best_blue = NULL; - FT_Pos best_dist; /* initial threshold */ + AF_Width best_blue = NULL; + FT_Bool best_blue_is_neutral = 0; + FT_Pos best_dist; /* initial threshold */ /* compute the initial threshold as a fraction of the EM size */ @@ -1780,24 +1859,26 @@ for ( bb = 0; bb < latin->blue_count; bb++ ) { AF_LatinBlue blue = latin->blues + bb; - FT_Bool is_top_blue, is_major_dir; + FT_Bool is_top_blue, is_neutral_blue, is_major_dir; /* skip inactive blue zones (i.e., those that are too large) */ if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) ) continue; - /* if it is a top zone, check for right edges -- if it is a bottom */ - /* zone, check for left edges */ - /* */ - /* of course, that's for TrueType */ - is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); - is_major_dir = FT_BOOL( edge->dir == axis->major_dir ); - - /* if it is a top zone, the edge must be against the major */ - /* direction; if it is a bottom zone, it must be in the major */ - /* direction */ - if ( is_top_blue ^ is_major_dir ) + /* if it is a top zone, check for right edges (against the major */ + /* direction); if it is a bottom zone, check for left edges (in */ + /* the major direction) -- this assumes the TrueType convention */ + /* for the orientation of contours */ + is_top_blue = + (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 ); + is_neutral_blue = + (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_NEUTRAL ) != 0); + is_major_dir = + FT_BOOL( edge->dir == axis->major_dir ); + + /* neutral blue zones are handled for both directions */ + if ( is_top_blue ^ is_major_dir || is_neutral_blue ) { FT_Pos dist; @@ -1810,15 +1891,19 @@ dist = FT_MulFix( dist, scale ); if ( dist < best_dist ) { - best_dist = dist; - best_blue = &blue->ref; + best_dist = dist; + best_blue = &blue->ref; + best_blue_is_neutral = is_neutral_blue; } /* now compare it to the overshoot position and check whether */ /* the edge is rounded, and whether the edge is over the */ /* reference position of a top zone, or under the reference */ - /* position of a bottom zone */ - if ( edge->flags & AF_EDGE_ROUND && dist != 0 ) + /* position of a bottom zone (provided we don't have a */ + /* neutral blue zone) */ + if ( edge->flags & AF_EDGE_ROUND && + dist != 0 && + !is_neutral_blue ) { FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org ); @@ -1832,8 +1917,9 @@ dist = FT_MulFix( dist, scale ); if ( dist < best_dist ) { - best_dist = dist; - best_blue = &blue->shoot; + best_dist = dist; + best_blue = &blue->shoot; + best_blue_is_neutral = is_neutral_blue; } } } @@ -1841,7 +1927,11 @@ } if ( best_blue ) + { edge->blue_edge = best_blue; + if ( best_blue_is_neutral ) + edge->flags |= AF_EDGE_NEUTRAL; + } } } @@ -2159,7 +2249,7 @@ FT_TRACE5(( " LINK: edge %d (opos=%.2f) linked to %.2f," " dist was %.2f, now %.2f\n", - stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0, + stem_edge - hints->axis[dim].edges, stem_edge->opos / 64.0, stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 )); } @@ -2226,14 +2316,41 @@ if ( edge->flags & AF_EDGE_DONE ) continue; - blue = edge->blue_edge; edge1 = NULL; edge2 = edge->link; + /* + * If a stem contains both a neutral and a non-neutral blue zone, + * skip the neutral one. Otherwise, outlines with different + * directions might be incorrectly aligned at the same vertical + * position. + * + * If we have two neutral blue zones, skip one of them. + * + */ + if ( edge->blue_edge && edge2 && edge2->blue_edge ) + { + FT_Byte neutral = edge->flags & AF_EDGE_NEUTRAL; + FT_Byte neutral2 = edge2->flags & AF_EDGE_NEUTRAL; + + + if ( ( neutral && neutral2 ) || neutral2 ) + { + edge2->blue_edge = NULL; + edge2->flags &= ~AF_EDGE_NEUTRAL; + } + else if ( neutral ) + { + edge->blue_edge = NULL; + edge->flags &= ~AF_EDGE_NEUTRAL; + } + } + + blue = edge->blue_edge; if ( blue ) edge1 = edge; - /* flip edges if the other stem is aligned to a blue zone */ + /* flip edges if the other edge is aligned to a blue zone */ else if ( edge2 && edge2->blue_edge ) { blue = edge2->blue_edge; @@ -2300,7 +2417,7 @@ /* this should not happen, but it's better to be safe */ if ( edge2->blue_edge ) { - FT_TRACE5(( " ASSERTION FAILED for edge %d\n", edge2-edges )); + FT_TRACE5(( " ASSERTION FAILED for edge %d\n", edge2 - edges )); af_latin_align_linked_edge( hints, dim, edge2, edge ); edge->flags |= AF_EDGE_DONE; @@ -2689,6 +2806,8 @@ FT_Error error; int dim; + AF_LatinAxis axis; + error = af_glyph_hints_reload( hints, outline ); if ( error ) @@ -2702,14 +2821,22 @@ if ( AF_HINTS_DO_HORIZONTAL( hints ) ) #endif { - error = af_latin_hints_detect_features( hints, AF_DIMENSION_HORZ ); + axis = &metrics->axis[AF_DIMENSION_HORZ]; + error = af_latin_hints_detect_features( hints, + axis->width_count, + axis->widths, + AF_DIMENSION_HORZ ); if ( error ) goto Exit; } if ( AF_HINTS_DO_VERTICAL( hints ) ) { - error = af_latin_hints_detect_features( hints, AF_DIMENSION_VERT ); + axis = &metrics->axis[AF_DIMENSION_VERT]; + error = af_latin_hints_detect_features( hints, + axis->width_count, + axis->widths, + AF_DIMENSION_VERT ); if ( error ) goto Exit; diff --git a/freetype/src/autofit/aflatin.h b/freetype/src/autofit/aflatin.h index a958af36a..2c0bfca18 100644 --- a/freetype/src/autofit/aflatin.h +++ b/freetype/src/autofit/aflatin.h @@ -5,7 +5,7 @@ /* Auto-fitter hinting routines for latin writing system */ /* (specification). */ /* */ -/* Copyright 2003-2007, 2009, 2011-2013 by */ +/* Copyright 2003-2007, 2009, 2011-2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -53,6 +53,8 @@ FT_BEGIN_HEADER #define AF_LATIN_IS_TOP_BLUE( b ) \ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_TOP ) +#define AF_LATIN_IS_NEUTRAL_BLUE( b ) \ + ( (b)->properties & AF_BLUE_PROPERTY_LATIN_NEUTRAL ) #define AF_LATIN_IS_X_HEIGHT_BLUE( b ) \ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_X_HEIGHT ) #define AF_LATIN_IS_LONG_BLUE( b ) \ @@ -63,10 +65,11 @@ FT_BEGIN_HEADER enum { - AF_LATIN_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */ - AF_LATIN_BLUE_TOP = 1 << 1, /* result of AF_LATIN_IS_TOP_BLUE */ - AF_LATIN_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */ - /* optimization */ + AF_LATIN_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */ + AF_LATIN_BLUE_TOP = 1 << 1, /* set if we have a top blue zone */ + AF_LATIN_BLUE_NEUTRAL = 1 << 2, /* set if we have neutral blue zone */ + AF_LATIN_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */ + /* optimization */ AF_LATIN_BLUE_FLAG_MAX }; @@ -169,6 +172,8 @@ FT_BEGIN_HEADER FT_LOCAL( void ) af_latin_hints_link_segments( AF_GlyphHints hints, + FT_UInt width_count, + AF_WidthRec* widths, AF_Dimension dim ); FT_LOCAL( FT_Error ) @@ -177,6 +182,8 @@ FT_BEGIN_HEADER FT_LOCAL( FT_Error ) af_latin_hints_detect_features( AF_GlyphHints hints, + FT_UInt width_count, + AF_WidthRec* widths, AF_Dimension dim ); /* */ diff --git a/freetype/src/autofit/aflatin2.c b/freetype/src/autofit/aflatin2.c index 930fa9834..07590b380 100644 --- a/freetype/src/autofit/aflatin2.c +++ b/freetype/src/autofit/aflatin2.c @@ -4,7 +4,7 @@ /* */ /* Auto-fitter hinting routines for latin writing system (body). */ /* */ -/* Copyright 2003-2013 by */ +/* Copyright 2003-2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -890,9 +890,6 @@ FT_Pos last_v = last->v; - if ( first == last ) - continue; - if ( first_v < last_v ) { p = first->prev; @@ -984,7 +981,7 @@ #ifdef AF_SORT_SEGMENTS for ( seg1 = segments; seg1 < segment_mid; seg1++ ) { - if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + if ( seg1->dir != axis->major_dir ) continue; for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ ) @@ -992,9 +989,7 @@ /* now compare each segment to the others */ for ( seg1 = segments; seg1 < segment_limit; seg1++ ) { - /* the fake segments are introduced to hint the metrics -- */ - /* we must never link them to anything */ - if ( seg1->dir != axis->major_dir || seg1->first == seg1->last ) + if ( seg1->dir != axis->major_dir ) continue; for ( seg2 = segments; seg2 < segment_limit; seg2++ ) @@ -1194,9 +1189,10 @@ edge->first = seg; edge->last = seg; - edge->fpos = seg->pos; edge->dir = seg->dir; - edge->opos = edge->pos = FT_MulFix( seg->pos, scale ); + edge->fpos = seg->pos; + edge->opos = FT_MulFix( seg->pos, scale ); + edge->pos = edge->opos; seg->edge_next = seg; } else diff --git a/freetype/src/autofit/afloader.c b/freetype/src/autofit/afloader.c index 0fa3c1278..fb15c87f0 100644 --- a/freetype/src/autofit/afloader.c +++ b/freetype/src/autofit/afloader.c @@ -131,8 +131,8 @@ loader->trans_delta = internal->glyph_delta; inverse = loader->trans_matrix; - FT_Matrix_Invert( &inverse ); - FT_Vector_Transform( &loader->trans_delta, &inverse ); + if ( !FT_Matrix_Invert( &inverse ) ) + FT_Vector_Transform( &loader->trans_delta, &inverse ); } switch ( slot->format ) @@ -508,7 +508,7 @@ if ( !size ) - return FT_THROW( Invalid_Argument ); + return FT_THROW( Invalid_Size_Handle ); FT_ZERO( &scaler ); diff --git a/freetype/src/autofit/afmodule.c b/freetype/src/autofit/afmodule.c index ba3b283ae..d411f44e7 100644 --- a/freetype/src/autofit/afmodule.c +++ b/freetype/src/autofit/afmodule.c @@ -55,7 +55,7 @@ if ( !face ) - return FT_THROW( Invalid_Argument ); + return FT_THROW( Invalid_Face_Handle ); globals = (AF_FaceGlobals)face->autohint.data; if ( !globals ) @@ -103,8 +103,8 @@ AF_StyleClass style_class = AF_STYLE_CLASSES_GET[ss]; - if ( style_class->script == *fallback_script && - style_class->coverage == AF_COVERAGE_DEFAULT ) + if ( (FT_UInt)style_class->script == *fallback_script && + style_class->coverage == AF_COVERAGE_DEFAULT ) { module->fallback_style = ss; break; @@ -226,7 +226,7 @@ af_get_interface( FT_Module module, const char* module_interface ) { - /* AF_SERVICES_GET derefers `library' in PIC mode */ + /* AF_SERVICES_GET dereferences `library' in PIC mode */ #ifdef FT_CONFIG_OPTION_PIC FT_Library library; diff --git a/freetype/src/autofit/afranges.c b/freetype/src/autofit/afranges.c index 3d919b5a4..b2c504d42 100644 --- a/freetype/src/autofit/afranges.c +++ b/freetype/src/autofit/afranges.c @@ -21,51 +21,69 @@ const AF_Script_UniRangeRec af_cyrl_uniranges[] = { - AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */ + AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */ AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */ AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */ AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */ AF_UNIRANGE_REC( 0UL, 0UL ) }; + /* there are some characters in the Devanagari Unicode block that are */ + /* generic to Indic scripts; we omit them so that their presence doesn't */ + /* trigger Devanagari */ + + const AF_Script_UniRangeRec af_deva_uniranges[] = + { + AF_UNIRANGE_REC( 0x0900UL, 0x093BUL ), /* Devanagari */ + /* omitting U+093C nukta */ + AF_UNIRANGE_REC( 0x093DUL, 0x0950UL ), + /* omitting U+0951 udatta, U+0952 anudatta */ + AF_UNIRANGE_REC( 0x0953UL, 0x0963UL ), + /* omitting U+0964 danda, U+0965 double danda */ + AF_UNIRANGE_REC( 0x0966UL, 0x097FUL ), + AF_UNIRANGE_REC( 0x20B9UL, 0x20B9UL ), /* (new) Rupee sign */ + AF_UNIRANGE_REC( 0UL, 0UL ) + }; + const AF_Script_UniRangeRec af_grek_uniranges[] = { AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */ - AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */ + AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */ AF_UNIRANGE_REC( 0UL, 0UL ) }; const AF_Script_UniRangeRec af_hebr_uniranges[] = { - AF_UNIRANGE_REC( 0x0590UL, 0x05FFUL ), /* Hebrew */ + AF_UNIRANGE_REC( 0x0590UL, 0x05FFUL ), /* Hebrew */ AF_UNIRANGE_REC( 0xFB1DUL, 0xFB4FUL ), /* Alphab. Present. Forms (Hebrew) */ AF_UNIRANGE_REC( 0UL, 0UL ) }; const AF_Script_UniRangeRec af_latn_uniranges[] = { - AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */ - AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */ - AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */ - AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */ - AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */ - AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */ - AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */ - AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */ - AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */ + AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */ + AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */ + AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */ + AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */ + AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */ + AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */ + AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */ + AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */ + AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */ AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */ - AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */ - AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */ - AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */ - AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */ - AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */ - AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */ - AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */ - AF_UNIRANGE_REC( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */ - AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */ - AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */ - AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */ - AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */ + AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */ + AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */ + AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */ + AF_UNIRANGE_REC( 0x20A0UL, 0x20B8UL ), /* Currency Symbols ... */ + AF_UNIRANGE_REC( 0x20BAUL, 0x20CFUL ), /* ... except new Rupee sign */ + AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */ + AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */ + AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */ + AF_UNIRANGE_REC( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */ + AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */ + AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */ + AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */ + AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */ AF_UNIRANGE_REC( 0UL, 0UL ) }; @@ -74,17 +92,17 @@ AF_UNIRANGE_REC( 0UL, 0UL ) }; -#ifdef AF_CONFIG_OPTION_INDIC - - const AF_Script_UniRangeRec af_beng_uniranges[] = + const AF_Script_UniRangeRec af_telu_uniranges[] = { - AF_UNIRANGE_REC( 0x0980UL, 0x09FFUL ), /* Bengali */ + AF_UNIRANGE_REC( 0x0C00UL, 0x0C7FUL ), /* Telugu */ AF_UNIRANGE_REC( 0UL, 0UL ) }; - const AF_Script_UniRangeRec af_deva_uniranges[] = +#ifdef AF_CONFIG_OPTION_INDIC + + const AF_Script_UniRangeRec af_beng_uniranges[] = { - AF_UNIRANGE_REC( 0x0900UL, 0x097FUL ), /* Devanagari */ + AF_UNIRANGE_REC( 0x0980UL, 0x09FFUL ), /* Bengali */ AF_UNIRANGE_REC( 0UL, 0UL ) }; @@ -148,12 +166,6 @@ AF_UNIRANGE_REC( 0UL, 0UL ) }; - const AF_Script_UniRangeRec af_telu_uniranges[] = - { - AF_UNIRANGE_REC( 0x0C00UL, 0x0C7FUL ), /* Telugu */ - AF_UNIRANGE_REC( 0UL, 0UL ) - }; - const AF_Script_UniRangeRec af_tibt_uniranges[] = { AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL ), /* Tibetan */ diff --git a/freetype/src/autofit/afscript.h b/freetype/src/autofit/afscript.h index ae209322e..efe8754df 100644 --- a/freetype/src/autofit/afscript.h +++ b/freetype/src/autofit/afscript.h @@ -31,6 +31,11 @@ HB_SCRIPT_CYRILLIC, 0x43E, 0x41E, 0x0 ) /* оО */ + SCRIPT( deva, DEVA, + "Devanagari", + HB_SCRIPT_DEVANAGARI, + 0x920, 0x935, 0x91F ) /* ठ व ट */ + SCRIPT( grek, GREK, "Greek", HB_SCRIPT_GREEK, @@ -51,6 +56,12 @@ HB_SCRIPT_INVALID, 0x0, 0x0, 0x0 ) + /* there are no simple forms for letters; we thus use two digit shapes */ + SCRIPT( telu, TELU, + "Telugu", + HB_SCRIPT_TELUGU, + 0xC66, 0xC67, 0x0 ) /* ౦ ౧ */ + #ifdef AF_CONFIG_OPTION_INDIC SCRIPT( beng, BENG, @@ -58,11 +69,6 @@ HB_SCRIPT_BENGALI, 'o', 0x0, 0x0 ) /* XXX */ - SCRIPT( deva, DEVA, - "Devanagari", - HB_SCRIPT_DEVANAGARI, - 'o', 0x0, 0x0 ) /* XXX */ - SCRIPT( gujr, GUJR, "Gujarati", HB_SCRIPT_GUJARATI, @@ -113,11 +119,6 @@ HB_SCRIPT_TAMIL, 'o', 0x0, 0x0 ) /* XXX */ - SCRIPT( telu, TELU, - "Telugu", - HB_SCRIPT_TELUGU, - 'o', 0x0, 0x0 ) /* XXX */ - SCRIPT( tibt, TIBT, "Tibetan", HB_SCRIPT_TIBETAN, diff --git a/freetype/src/autofit/afstyles.h b/freetype/src/autofit/afstyles.h index 429da7664..f14d354cc 100644 --- a/freetype/src/autofit/afstyles.h +++ b/freetype/src/autofit/afstyles.h @@ -81,7 +81,9 @@ DEFAULT ) META_STYLE_LATIN( cyrl, CYRL, "Cyrillic" ) + META_STYLE_LATIN( grek, GREK, "Greek" ) + STYLE( hebr_dflt, HEBR_DFLT, "Hebrew default style", AF_WRITING_SYSTEM_LATIN, @@ -90,6 +92,13 @@ AF_COVERAGE_DEFAULT ) META_STYLE_LATIN( latn, LATN, "Latin" ) + STYLE( deva_dflt, DEVA_DFLT, + "Devanagari default style", + AF_WRITING_SYSTEM_LATIN, + AF_SCRIPT_DEVA, + AF_BLUE_STRINGSET_DEVA, + AF_COVERAGE_DEFAULT ) + #ifdef FT_OPTION_AUTOFIT2 STYLE( ltn2_dflt, LTN2_DFLT, "Latin 2 default style", @@ -106,6 +115,13 @@ (AF_Blue_Stringset)0, AF_COVERAGE_DEFAULT ) + STYLE( telu_dflt, TELU_DFLT, + "Telugu default style", + AF_WRITING_SYSTEM_LATIN, + AF_SCRIPT_TELU, + AF_BLUE_STRINGSET_TELU, + AF_COVERAGE_DEFAULT ) + #ifdef AF_CONFIG_OPTION_INDIC /* no blue stringset support for the Indic writing system yet */ @@ -119,7 +135,6 @@ AF_COVERAGE_DEFAULT ) STYLE_DEFAULT_INDIC( beng, BENG, "Bengali" ) - STYLE_DEFAULT_INDIC( deva, DEVA, "Devanagari" ) STYLE_DEFAULT_INDIC( gujr, GUJR, "Gujarati" ) STYLE_DEFAULT_INDIC( guru, GURU, "Gurmukhi" ) STYLE_DEFAULT_INDIC( knda, KNDA, "Kannada" ) @@ -130,7 +145,6 @@ STYLE_DEFAULT_INDIC( sund, SUND, "Sundanese" ) STYLE_DEFAULT_INDIC( sylo, SYLO, "Syloti Nagri" ) STYLE_DEFAULT_INDIC( taml, TAML, "Tamil" ) - STYLE_DEFAULT_INDIC( telu, TELU, "Telugu" ) STYLE_DEFAULT_INDIC( tibt, TIBT, "Tibetan" ) #endif /* AF_CONFIG_OPTION_INDIC */ diff --git a/freetype/src/autofit/hbshim.c b/freetype/src/autofit/hbshim.c index 11fb743e8..a705cef00 100644 --- a/freetype/src/autofit/hbshim.c +++ b/freetype/src/autofit/hbshim.c @@ -247,6 +247,7 @@ * (this is, not a single character is covered), we skip this coverage. * */ + if ( style_class->coverage != AF_COVERAGE_DEFAULT ) { AF_Blue_Stringset bss = style_class->blue_stringset; const AF_Blue_StringRec* bs = &af_blue_stringsets[bss]; @@ -328,8 +329,15 @@ * out whether a glyph gets shifted vertically, but this is something I * would like to avoid if not really necessary. * + * Note that we don't follow this logic for the default coverage. + * Complex scripts like Devanagari have mandatory GPOS features to + * position many glyph elements, using mark-to-base or mark-to-ligature + * tables; the number of glyphs missed due to condition (b) would be far + * too large. + * */ - hb_set_subtract( gsub_glyphs, gpos_glyphs ); + if ( style_class->coverage != AF_COVERAGE_DEFAULT ) + hb_set_subtract( gsub_glyphs, gpos_glyphs ); #ifdef FT_DEBUG_LEVEL_TRACE FT_TRACE4(( " glyphs without GPOS data (`*' means already assigned)" )); @@ -347,6 +355,12 @@ count++; #endif + /* glyph indices returned by `hb_ot_layout_lookup_collect_glyphs' */ + /* can be arbitrary: some fonts use fake indices for processing */ + /* internal to GSUB or GPOS, which is fully valid */ + if ( idx >= (hb_codepoint_t)globals->glyph_count ) + continue; + if ( gstyles[idx] == AF_STYLE_UNASSIGNED ) gstyles[idx] = (FT_Byte)style_class->style; #ifdef FT_DEBUG_LEVEL_TRACE |