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fixing the autohinter: the advance of auto-hinted glyphs in mono-spaced fonts was incorrect

This commit is contained in:
David Turner 2001-12-22 16:07:52 +00:00
parent af594e606a
commit 9a9edc6624
3 changed files with 46 additions and 2 deletions
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29
ChangeLog
View File

@ -1,8 +1,16 @@
2001-12-22 David Turner <david@freetype.org>
* src/autohint/ahhint.c (ah_hinter_load): auto-hinted glyphs had an
incorrect glyph advance in the case of mono-width fonts (like Courier,
Andale Mono, etc..)
2001-12-22 Detlef Würkner <TetiSoft@apg.lahn.de>
* builds/amiga/*: Adaptations to latest changes.
Support added for MorphOS.
2001-12-22 Werner Lemberg <wl@gnu.org>
* src/pshinter/pshrec.c (FT_COMPONENT): Redefine to `trace_pshrec'.
@ -17,6 +25,7 @@
* docs/modules.txt: New file.
2001-12-21 David Turner <david@freetype.org>
* src/pshinter/pshrec.c (ps_hints_t2mask, ps_hints_t2counter):
@ -30,9 +39,29 @@
(T1_Decoder_Parse_Charstrings), src/pshinter/pshalgo2.c (*), Fixed a
bug where the X and Y axis where inversed in the postscript hinter.
This caused problem when displaying on non-square surfaces.
>>>>>>> 1.289
<<<<<<< ChangeLog
* src/cff/cffgload.c: added a comment regarding "cntrmask" operator
* src/pshinter/pshrec.c: now ignores invalid "hintmask" and "cntrmask"
operators (instead of returning an error). Glyph 2028 of the CFF font
"MSung-Light-Acro" couldn't be rendered otherwise (it seems its
charstring is buggy, though this requires more analysis)..
* src/cff/cffgload.c, src/psaux/t1decode.c, src/pshinter/pshrec.c,
src/pshinter/ahalgo2.c, src/pshinter/pshglob.h: fixed a bug where
the X and Y axis where inversed in the postscript hinter. this
caused problem when displaying on non-square surfaces..
* include/freetype/cache/ftcmanag.h, include/freetype/cache/ftcimage.h,
include/freetype/cache/ftcsbits.h: updating documentation to better
explain the use of the "anode" output parameter in lookup functions
=======
* src/pshinter/pshalgo2.c: s/vertical/dimension/.
>>>>>>> 1.289
* src/pshinter/pshglob.c (psh_globals_new): Replaced a floating
point constant with a fixed-float equivalent. For some reasons not
all compilers are capable of directly computing a floating pointer

8
README
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@ -1,4 +1,12 @@
Special note to Unix users !!
=============================
Please read the file "README.UNX", it contains important information
regarding the installation of FreeType on Unix systems, especially
Linux ones !!
FreeType 2.0.6
==============

11
src/autohint/ahhint.c
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@ -1290,8 +1290,15 @@
slot->metrics.height = bbox.yMax - bbox.yMin;
slot->metrics.horiBearingX = bbox.xMin;
slot->metrics.horiBearingY = bbox.yMax;
slot->metrics.horiAdvance = hinter->pp2.x - hinter->pp1.x;
/* XXX: TO DO - slot->linearHoriAdvance */
/* for mono-width fonts (like Andale, Courier, etc..), we need */
/* to keep the original rounded advance.. */
if ( !FT_IS_FIXED_WIDTH( slot->face ) )
slot->metrics.horiAdvance = hinter->pp2.x - hinter->pp1.x;
else
slot->metrics.horiAdvance = FT_MulFix( slot->metrics.horiAdvance, x_scale );
slot->metrics.horiAdvance = (slot->metrics.horiAdvance+32) & -64;
/* now copy outline into glyph slot */
ah_loader_rewind( slot->internal->loader );