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[freetype2] master 1dee4bf: [autofit] Use better blue zone characters fo
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From: |
Werner LEMBERG |
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Subject: |
[freetype2] master 1dee4bf: [autofit] Use better blue zone characters for lowercase latin. |
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Date: |
Sun, 5 Feb 2017 07:35:29 +0000 (UTC) |
branch: master
commit 1dee4bf9f7dc0780dcc922de35321ed5f0bd089d
Author: Werner Lemberg <address@hidden>
Commit: Werner Lemberg <address@hidden>
[autofit] Use better blue zone characters for lowercase latin.
The number of lowercase characters for computing the top flat blue
zone value was too small (in most cases only `x' and `z'). If one
of the two characters has a large serif, say, it can happen that
FreeType must select between two different values, having a 50%
chance to use the wrong one. As a result, rendering at larger PPEM
values could yield uneven lowercase glyph heights.
Problem reported by Christoph Koeberlin <address@hidden>.
* src/autofit/afblue.dat (AF_BLUE_STRING_LATIN_SMALL): Replaced
with...
(AF_BLUE_STRING_LATIN_SMALL_TOP, AF_BLUE_STRING_LATIN_SMALL_BOTTOM):
... New, extended sets.
(AF_BLUE_STRINGSET_LATN): Updated.
* src/autofit/afblue.c, scr/autofit/afblue.h: Regenerated.
---
ChangeLog | 21 +++++++++++++++
src/autofit/afblue.c | 8 +++---
src/autofit/afblue.dat | 10 +++++---
src/autofit/afblue.h | 67 ++++++++++++++++++++++++------------------------
4 files changed, 66 insertions(+), 40 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index c85a698..a102c61 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,24 @@
+2017-02-05 Werner Lemberg <address@hidden>
+
+ [autofit] Use better blue zone characters for lowercase latin.
+
+ The number of lowercase characters for computing the top flat blue
+ zone value was too small (in most cases only `x' and `z'). If one
+ of the two characters has a large serif, say, it can happen that
+ FreeType must select between two different values, having a 50%
+ chance to use the wrong one. As a result, rendering at larger PPEM
+ values could yield uneven lowercase glyph heights.
+
+ Problem reported by Christoph Koeberlin <address@hidden>.
+
+ * src/autofit/afblue.dat (AF_BLUE_STRING_LATIN_SMALL): Replaced
+ with...
+ (AF_BLUE_STRING_LATIN_SMALL_TOP, AF_BLUE_STRING_LATIN_SMALL_BOTTOM):
+ ... New, extended sets.
+ (AF_BLUE_STRINGSET_LATN): Updated.
+
+ * src/autofit/afblue.c, scr/autofit/afblue.h: Regenerated.
+
2017-02-04 Werner Lemberg <address@hidden>
Make `freetype-config' a wrapper of `pkg-config' if possible.
diff --git a/src/autofit/afblue.c b/src/autofit/afblue.c
index bbc6daf..524f688 100644
--- a/src/autofit/afblue.c
+++ b/src/autofit/afblue.c
@@ -168,7 +168,9 @@
'\0',
'f', ' ', 'i', ' ', 'j', ' ', 'k', ' ', 'd', ' ', 'b', ' ', 'h', /* f i j
k d b h */
'\0',
- 'x', ' ', 'z', ' ', 'r', ' ', 'o', ' ', 'e', ' ', 's', ' ', 'c', /* x z r
o e s c */
+ 'u', ' ', 'v', ' ', 'x', ' ', 'z', ' ', 'o', ' ', 'e', ' ', 's', ' ', 'c',
/* u v x z o e s c */
+ '\0',
+ 'n', ' ', 'r', ' ', 'x', ' ', 'z', ' ', 'o', ' ', 'e', ' ', 's', ' ', 'c',
/* n r x z o e s c */
'\0',
'p', ' ', 'q', ' ', 'g', ' ', 'j', ' ', 'y', /* p q g j y */
'\0',
@@ -392,9 +394,9 @@
{ 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_STRING_LATIN_SMALL_TOP, AF_BLUE_PROPERTY_LATIN_TOP |
AF_BLUE_PROPERTY_LATIN_X_HEIGHT
},
- { AF_BLUE_STRING_LATIN_SMALL, 0
},
+ { AF_BLUE_STRING_LATIN_SMALL_BOTTOM, 0
},
{ AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0
},
{ AF_BLUE_STRING_MAX, 0
},
{ AF_BLUE_STRING_LATIN_SUBS_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP
},
diff --git a/src/autofit/afblue.dat b/src/autofit/afblue.dat
index d5a9ef5..8b75aec 100644
--- a/src/autofit/afblue.dat
+++ b/src/autofit/afblue.dat
@@ -242,8 +242,10 @@ AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY
AF_BLUE_STRING_MAX_LEN:
"H E Z L O C U S"
AF_BLUE_STRING_LATIN_SMALL_F_TOP
"f i j k d b h"
- AF_BLUE_STRING_LATIN_SMALL
- "x z r o e s c"
+ AF_BLUE_STRING_LATIN_SMALL_TOP
+ "u v x z o e s c"
+ AF_BLUE_STRING_LATIN_SMALL_BOTTOM
+ "n r x z o e s c"
AF_BLUE_STRING_LATIN_SMALL_DESCENDER
"p q g j y"
@@ -630,9 +632,9 @@ AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY
AF_BLUE_STRINGSET_MAX_LEN:
{ 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_STRING_LATIN_SMALL_TOP, AF_BLUE_PROPERTY_LATIN_TOP |
AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
- { AF_BLUE_STRING_LATIN_SMALL, 0 }
+ { AF_BLUE_STRING_LATIN_SMALL_BOTTOM, 0 }
{ AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 }
{ AF_BLUE_STRING_MAX, 0 }
diff --git a/src/autofit/afblue.h b/src/autofit/afblue.h
index 12381ea..f4720ed 100644
--- a/src/autofit/afblue.h
+++ b/src/autofit/afblue.h
@@ -148,39 +148,40 @@ FT_BEGIN_HEADER
AF_BLUE_STRING_LATIN_CAPITAL_TOP = 1852,
AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 1868,
AF_BLUE_STRING_LATIN_SMALL_F_TOP = 1884,
- AF_BLUE_STRING_LATIN_SMALL = 1898,
- AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 1912,
- AF_BLUE_STRING_LATIN_SUBS_CAPITAL_TOP = 1922,
- AF_BLUE_STRING_LATIN_SUBS_CAPITAL_BOTTOM = 1942,
- AF_BLUE_STRING_LATIN_SUBS_SMALL_F_TOP = 1962,
- AF_BLUE_STRING_LATIN_SUBS_SMALL = 1982,
- AF_BLUE_STRING_LATIN_SUBS_SMALL_DESCENDER = 2018,
- AF_BLUE_STRING_LATIN_SUPS_CAPITAL_TOP = 2038,
- AF_BLUE_STRING_LATIN_SUPS_CAPITAL_BOTTOM = 2069,
- AF_BLUE_STRING_LATIN_SUPS_SMALL_F_TOP = 2098,
- AF_BLUE_STRING_LATIN_SUPS_SMALL = 2124,
- AF_BLUE_STRING_LATIN_SUPS_SMALL_DESCENDER = 2149,
- AF_BLUE_STRING_MALAYALAM_TOP = 2160,
- AF_BLUE_STRING_MALAYALAM_BOTTOM = 2204,
- AF_BLUE_STRING_MYANMAR_TOP = 2236,
- AF_BLUE_STRING_MYANMAR_BOTTOM = 2268,
- AF_BLUE_STRING_MYANMAR_ASCENDER = 2300,
- AF_BLUE_STRING_MYANMAR_DESCENDER = 2328,
- AF_BLUE_STRING_SINHALA_TOP = 2360,
- AF_BLUE_STRING_SINHALA_BOTTOM = 2392,
- AF_BLUE_STRING_SINHALA_DESCENDER = 2424,
- AF_BLUE_STRING_TAMIL_TOP = 2468,
- AF_BLUE_STRING_TAMIL_BOTTOM = 2500,
- AF_BLUE_STRING_TELUGU_TOP = 2532,
- AF_BLUE_STRING_TELUGU_BOTTOM = 2560,
- AF_BLUE_STRING_THAI_TOP = 2588,
- AF_BLUE_STRING_THAI_BOTTOM = 2612,
- AF_BLUE_STRING_THAI_ASCENDER = 2640,
- AF_BLUE_STRING_THAI_LARGE_ASCENDER = 2652,
- AF_BLUE_STRING_THAI_DESCENDER = 2664,
- AF_BLUE_STRING_THAI_LARGE_DESCENDER = 2680,
- AF_BLUE_STRING_THAI_DIGIT_TOP = 2688,
- af_blue_1_1 = 2699,
+ AF_BLUE_STRING_LATIN_SMALL_TOP = 1898,
+ AF_BLUE_STRING_LATIN_SMALL_BOTTOM = 1914,
+ AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 1930,
+ AF_BLUE_STRING_LATIN_SUBS_CAPITAL_TOP = 1940,
+ AF_BLUE_STRING_LATIN_SUBS_CAPITAL_BOTTOM = 1960,
+ AF_BLUE_STRING_LATIN_SUBS_SMALL_F_TOP = 1980,
+ AF_BLUE_STRING_LATIN_SUBS_SMALL = 2000,
+ AF_BLUE_STRING_LATIN_SUBS_SMALL_DESCENDER = 2036,
+ AF_BLUE_STRING_LATIN_SUPS_CAPITAL_TOP = 2056,
+ AF_BLUE_STRING_LATIN_SUPS_CAPITAL_BOTTOM = 2087,
+ AF_BLUE_STRING_LATIN_SUPS_SMALL_F_TOP = 2116,
+ AF_BLUE_STRING_LATIN_SUPS_SMALL = 2142,
+ AF_BLUE_STRING_LATIN_SUPS_SMALL_DESCENDER = 2167,
+ AF_BLUE_STRING_MALAYALAM_TOP = 2178,
+ AF_BLUE_STRING_MALAYALAM_BOTTOM = 2222,
+ AF_BLUE_STRING_MYANMAR_TOP = 2254,
+ AF_BLUE_STRING_MYANMAR_BOTTOM = 2286,
+ AF_BLUE_STRING_MYANMAR_ASCENDER = 2318,
+ AF_BLUE_STRING_MYANMAR_DESCENDER = 2346,
+ AF_BLUE_STRING_SINHALA_TOP = 2378,
+ AF_BLUE_STRING_SINHALA_BOTTOM = 2410,
+ AF_BLUE_STRING_SINHALA_DESCENDER = 2442,
+ AF_BLUE_STRING_TAMIL_TOP = 2486,
+ AF_BLUE_STRING_TAMIL_BOTTOM = 2518,
+ AF_BLUE_STRING_TELUGU_TOP = 2550,
+ AF_BLUE_STRING_TELUGU_BOTTOM = 2578,
+ AF_BLUE_STRING_THAI_TOP = 2606,
+ AF_BLUE_STRING_THAI_BOTTOM = 2630,
+ AF_BLUE_STRING_THAI_ASCENDER = 2658,
+ AF_BLUE_STRING_THAI_LARGE_ASCENDER = 2670,
+ AF_BLUE_STRING_THAI_DESCENDER = 2682,
+ AF_BLUE_STRING_THAI_LARGE_DESCENDER = 2698,
+ AF_BLUE_STRING_THAI_DIGIT_TOP = 2706,
+ af_blue_1_1 = 2717,
#ifdef AF_CONFIG_OPTION_CJK
AF_BLUE_STRING_CJK_TOP = af_blue_1_1 + 1,
AF_BLUE_STRING_CJK_BOTTOM = af_blue_1_1 + 203,
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- [freetype2] master 1dee4bf: [autofit] Use better blue zone characters for lowercase latin.,
Werner LEMBERG <=