On 10 Dec 2009, at 21:29, Parag Nemade wrote:
Hi,
I would like to know whether current harfbuzz code can be used for
testing the rendering of Indic scripts?
Not easily, I think. A little while ago, I started work on Indic support
(initially concentrating on the new Devanagari standard
On 3 Mar 2010, at 19:20, Behdad Esfahbod wrote:
On 03/03/2010 01:45 PM, Jonathan Kew wrote:
On 3 Mar 2010, at 18:41, Behdad Esfahbod wrote:
Ok, lets think about this more seriously. Who'll be there if we do the
summit? LGM is April 26..28 in Brussels.
Is it? According to http
Hi Behdad,
I think there's an issue with how (or rather *where*) mirroring is implemented
-- currently hb_mirror_chars is called from hb_substitute_default, right before
hb_map_glyphs. The problem with this is that by the time hb_substitute_default
is called, the buffer has been forced to
to a
meeting. It would be really nice to have Jonathan Kew, Evin Martin, and
Daniel Glassy. How does your schedules look like for that week?
That could work for me. I've put it (tentatively) on the calendar.
JK
We'd got to decide fast since I need to go figure my visa out. Martin kindly
offered
No, I'm not suggesting a different serialization format, I'm saying
that instead of caching the full GSUB/GPOS tables it might be better
to cache some data structure that's been distilled for a given purpose.
For a lot of documents, hb_shape will be called repeatedly with the
same
On 24 Apr 2010, at 00:54, Behdad Esfahbod wrote:
- Tagtag;/* 4-byte identifier. */
+ private:
+ union {
+ Tagtag;/* 4-byte identifier. */
+ OpenTypeFontFace fontFace[VAR];
+ TTCHeader ttcHeader[VAR];
+ } u;
Hi Behdad,
We've run across a case where the sanitizer crashes (division by zero) on
invalid data. This happens if *none* of the possible fields are actually
specified as present in ValueFormat, so that the record_size passed to
check_array() is zero.
Suggested patch attached. This allows a
On 27 Jul 2010, at 18:12, Behdad Esfahbod wrote:
Jonathan,
I don't remember what your reply was last time.
Should we apply 'mset' by default?
I think we should apply it by default in the Arabic shaper, but not in the
generic one.
I don't remember last time, but that's my reply today,
Hi Behdad,
It's possible for AnchorMatrix::sanitize() to fail with a div-by-zero error, if
the 'rows' field is zero.
(See https://bugzilla.mozilla.org/show_bug.cgi?id=586501.)
Patch is attached.
JK
bug-586501-AnchorMatrix-sanitize.patch
Description: Binary data
Hi Behdad,
I notice that the code in MarkArray::apply() includes the following:
hb_internal_glyph_position_t o = c-buffer-pos[c-buffer-i];
o.x_advance = 0;
o.y_advance = 0;
o.x_offset = base_x - mark_x;
o.y_offset = base_y - mark_y;
o.back = c-buffer-i - glyph_pos;
On 16 Sep 2010, at 15:29, Ed wrote:
On Thu, Sep 16, 2010 at 3:42 AM, Jonathan Kew jonat...@jfkew.plus.com wrote:
On 16 Sep 2010, at 02:33, Ed wrote:
Hi, Behdad and everyone,
Just want to confirm something:
I thought Harfbuzz-ng did not yet have complex text shaper support
On 16 Sep 2010, at 22:43, Ed wrote:
Thanks for the very useful information, Jonathan!
What I am seeing so far (for Tai Tham) is that I can get GSUB ccmp
with dflt ligature substitutions to work on both FF-3.6x,
FF-4x-linux, and FF-4x-osx.
This suggests that pango (on Linux) and CoreText
Hi Behdad,
There are a couple of infinite loops (they fail to increment the counter
variable) in hb_ot_tag_from_language(), in the x-hbot... case:
while (i 4 IS_LETTER (lang_str[i])) {
tag[i] = TO_UPPER (lang_str[i]);
}
while (i 4)
tag[i] = ' ';
Neither of these
Hi Behdad,
Please see https://bugzilla.mozilla.org/show_bug.cgi?id=603346 it's
harmless, but see comment #3 there.
JK
___
HarfBuzz mailing list
HarfBuzz@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/harfbuzz
Hi Behdad,
This function, from hb-font.cc, doesn't look right to me.
hb_bool_t
hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs)
{
return ffuncs-immutable = TRUE;
}
I suggest removing the = TRUE here!
(Maybe it'd be worth declaring the parameter as const for query functions
On 29 Oct 2010, at 01:55, Martin Hosken wrote:
Dear Behdad,
I think I'm going to make that change, especially since everytime I hooked up
HarfBuzz to another system, it worked the first try except for a missing
negation sign for y_offset.
I don't think it matters too much which way you
On 5 Nov 2010, at 00:02, Behdad Esfahbod wrote:
Hi Jonathan,
So, many places in the TrueType spec, there are these searchRange,
entrySelector, and rangeShift values that seem to be there to facilitate a
fast binary search algorithm. I cannot quite get the intended algorithm
though (not
Hi Behdad,
I've noticed that shaping isn't working correctly for text with overridden
direction; this shows up with examples like
data:text/html,p
style=unicode-bidi:bidi-override;direction:ltr;font-family:scheherazadeالعربي
in harfbuzz-ng-based Firefox builds.
The problem arises because
On 14 Feb 2011, at 12:20, Tom Hacohen wrote:
Dear all,
Hey, there's a question I've been meaning to ask for a long time now,
why does kerning modify the x_advance and not the x_offset? The way I
see it, with this behavior x_advance of a char depends on it's position
which eliminates the
On 20 Feb 2011, at 14:39, Khaled Hosny wrote:
On Sun, Feb 20, 2011 at 04:29:49PM +0200, Khaled Hosny wrote:
I'm trying to write a simple HB test and thought using FreeType/Cairo
would be the shortest path. I got the code to shape the text, but glyph
positions are wrong (at least horizontal
On 21 Apr 2011, at 15:48, Tom Hacohen wrote:
Dear all,
Thanks to Olivier Berten who let me know that all I need is to tell hb
which opentype features I want to use in order for Indic to work, I got
Indic scripts to work.
As said before, I can't read these languages, but from what I have
On 21 Apr 2011, at 16:01, Tom Hacohen wrote:
On Thu, 2011-04-21 at 15:54 +0100, Jonathan Kew wrote:
I'm afraid this is _not_ sufficient to get correct rendering of most (all?)
Indic scripts. In addition to the application of OpenType features, Indic
scripts require reordering of certain
On 23 Jun 2011, at 18:41, Behdad Esfahbod wrote:
Hi,
Can I get a quick show of hands of who's in for a Text Layout Summit at
Desktop Summit (the combined GUADEC / aKademy conferences) this August? Lets
say, August 8th to 12th?
My main goals for the summit would be to:
- Get the Qt
On 21 Jul 2011, at 04:21, Behdad Esfahbod wrote:
I'm wondering: should harfbuzz try compatibility composition/decomposition
(NFKC/NFKD) if a font doesn't support a character?
No, I don't think this belongs in a shaping/rendering engine.
JK
___
Hi Martin,
Could you confirm (a) which rendering is which in your listing, and (b) what
font was being used - thanks!
JK
On 7 Sep 2011, at 10:17, Martin Hosken wrote:
Dear Behdad,
I enclose a run of a hindi wordlist comparing hbng with icu renderings of the
same text. I only record
On 7 Sep 2011, at 10:57, Martin Hosken wrote:
Dear Jonathan,
Could you confirm (a) which rendering is which in your listing, and (b) what
font was being used - thanks!
The first [] contains the hbng glyph sequence and the second [] contains the
icu. The font is Annapurna SIL available
On 27 Sep 2011, at 11:04, Dohyun Kim wrote:
Hi,
While testing harfbuzz-ng with a huge font which has more than 64,000
glyphs, I encountered a strange result of hb-shape:
uniAC00=0+970|gid-1389=0|uniB098=6+970|gid-1388=6
As shown, minus GID numbers are printed on the screen; this of
Hi Behdad,
In the current hbng code, _hb_ot_shape_normalize() will hang if a variation
selector is present, because decompose_multi_char_cluster gives up, does an
early return, and fails to make any forward progress through the buffer.
Suggested fix:
---
Hi Behdad,
It seems that there's a problem with the use of intrin.h in some versions of
MSVC - apparently some older SDK versions are buggy and it leads to a conflict
with windows.h. I ran into this when things built fine for me locally, with
VC2010, but failed on our tinderbox machines with
I've had a bug on file about updating harfbuzz in our tree for awhile now...
https://bugzilla.mozilla.org/show_bug.cgi?id=695857. I'm about to post updated
patches there, as we've had other code changes in the meantime that require
some revision; then let's hope we can get it reviewed and
It turns out that some legacy Thai fonts provide OpenType substitution features
to implement mark positioning, but (incorrectly) put those features/lookups
under the 'latn' script tag instead of using 'thai' (or possibly 'DFLT'). See
https://bugzilla.mozilla.org/show_bug.cgi?id=719366 for an
Hi Behdad,
In our build (where we don't currently need to use harfbuzz across threads), we
get warnings from hb-{mutex,object}-private.hh:
/builds/harfbuzz-update/gfx/harfbuzz/src/hb-mutex-private.hh:69:2: warning:
#warning Could not find any system to define platform macros, library will
Looking at the Makefile.am in the utils directory, I see things like
if HAVE_GLIB
if HAVE_FREETYPE
if HAVE_CAIRO_FT
hb_view_SOURCES = \
...etc...
bin_PROGRAMS += hb-view
endif
endif
endif
which suggests that hb-view (for example) won't be built unless configure has
found glib, freetype and
On 12/4/12 02:47, Behdad Esfahbod wrote:
As a crude test, I profiled the Indic shaping, and am conjecturing that about
10 to 20 percent of the time can be saved pre-planning the shaping process.
My testing showed no measurable saving for skipping the sanitizing process.
Maybe both can wait (and
On 18/4/12 02:22, Behdad Esfahbod wrote:
On 04/17/2012 06:47 PM, Khaled Hosny wrote:
On Tue, Apr 17, 2012 at 05:10:37AM +0200, Khaled Hosny wrote:
On Mon, Apr 16, 2012 at 09:08:49PM -0400, Behdad Esfahbod wrote:
Problem 2:
When there is no consonant exist, the dotted circle should be
With current hbng master, I'm hitting a compilation failure with GCC
4.2.1, as it doesn't like the last STATIC_ASSERT here:
CXXlibharfbuzz_la-hb-set.lo
In file included from ../../src/hb-set.cc:27:
../../src/hb-set-private.hh:131: error: invalid use of non-static data
member
This commit:
New commits:
commit 22afd66a30d01b6771405e76777306f600807bea
Author: Behdad Esfahbodbeh...@behdad.org
Date: Thu May 17 21:23:49 2012 -0400
Add hb_atomic_int_set() again
is slightly broken for the HB_NO_MT configuration...
@@ -73,6 +75,7 @@ typedef volatile int
On 27/5/12 13:51, Behdad Esfahbod wrote:
On 05/27/2012 08:49 AM, Rolf Langenhuijzen wrote:
Hello,
Is there a command line tool available (from
http://cgit.freedesktop.org/harfbuzz/) or anything similar to output
supported/implemented opentype features of a font?
Right now there is one in
On 28/5/12 21:29, Rolf Langenhuijzen wrote:
Maybe not the most important things, but because I'm testing with
hb-view I just report what I come across…
When I test a text like 1960 with the onum feature on, it keeps
showing the default lining figures.
If you replace the text with a non
On 23/7/12 13:57, Behdad Esfahbod wrote:
Also noticed that post-base 'LA' is not correctly rendered for 'സ്പ്ലേ'.
This one is more interesting. And we differ from Uniscribe, and I see why.
Jonathan, this is what's happening:
Both Rachana and Raghu have 'half' lookups that subtitute C,H
On 24/7/12 12:51, Shriramana Sharma wrote:
On Tue, Jul 24, 2012 at 3:26 PM, Pravin Satpute psatp...@redhat.com wrote:
I see the dotted circle is still not appearing with dependant vowels
(U+093f), Is this intentionally?
Might be since you are removing test cases generating dotted
On 25/7/12 22:13, Khaled Hosny wrote:
This only applies to the marks that result of multiple substitution i.e.
in Amiri the middle lam of لله is substituted with
lamshaddasmallalef, I don’t think Arabic Typesetting has something
like that.
Just wondering (without checking the code yet...) -
On 27/7/12 17:56, Behdad Esfahbod wrote:
@@ -114,6 +115,7 @@ hb_shape_plan_get_empty (void)
static const hb_shape_plan_t _hb_shape_plan_nil = {
HB_OBJECT_HEADER_STATIC,
+TRUE, /* default_shaper_list */
NULL, /* face */
_HB_BUFFER_PROPS_DEFAULT, /* props */
On 30/7/12 21:25, Rolf Langenhuijzen wrote:
I tried installing the latest version.
./configure runs without problems.
when I do make it stops:
---
…
CXXlibharfbuzz_la-hb-ot-layout.lo
In file included from hb-ot-layout.cc:34:
hb-ot-layout-gsub-table.hh: In member function ‘bool
On 30/7/12 22:36, Rolf Langenhuijzen wrote:
You are fast, indeed it helped! But then it goes wrong on some other
part:
Oh yes, the Core Text backend is currently broken, because Behdad has
been re-working some of the internal interfaces.
I'm currently just omitting it from the build by
On 7/8/12 00:13, Behdad Esfahbod wrote:
[+harfbuzz list]
Hi Matthias,
Hope you enjoyed GUADEC. I sure missed the atmosphere, judging by PGO posts.
Sure, lets do it. As of now, harfbuzz is in par os better than Pango in all
aspects that I know.
So, what I will do (some of it during my
On 28/8/12 07:56, Adam Twardoch (List) wrote:
Behdad,
I wonder if you could make the building process of HarfBuzz easier so
that it builds on multiple architectures out of the box, without manual
lipo tricks?
When I try to do the standard thing on Mac OS X (using harfbuzz
0.9.3), which is run
On 2/9/12 05:07, Khaled Hosny wrote:
On Sat, Sep 01, 2012 at 06:40:40PM -0400, Behdad Esfahbod wrote:
On 08/26/2012 07:15 PM, Khaled Hosny wrote:
Hi Behdad,
I just noticed that hamza above and below marks (U+0654, U+0655), are
reordered after Arabic vowel marks because they have much higher
On 5/11/12 18:15, James Cloos wrote:
[Background for the harfbuzz readers:
hb fails to compile with icu 50_rc and gcc 4.7.2 with an inconsistancy
between what icu provides for LEFontInstance::mapCharsToGlyphs() and
that hb wants.]
FYI, https://bugs.webkit.org/show_bug.cgi?id=101179 discusses
On 12/11/12 19:26, Steven R. Loomis wrote:
http://icu-project.org/~srl/tmp/ICUvsHarfbuzzComp.png
(ICU, Harfbuzz, and then Diff)
sample text is
http://source.icu-project.org/repos/icu/icu/trunk/source/samples/layout/Sample.txt
Could you please confirm what font is being used for the
On 13/11/12 08:23, Steven R. Loomis wrote:
Jonathan, Somnath:
This is pure Code2000. I'll re run it with something else later. I
was trying to simplify things as much as possible (one ascii + one
arabic character was failing).
Interesting - I don't see the same problems in the Sanskrit
On 13/11/12 18:15, Harshula wrote:
4) Commit 0736915b8ed789a209205fec762997af3a8af89c ([Indic] Decompose
Sinhala split matras the way old HarfBuzz / Pango did) has a bug. The
five fonts I test with do not render correctly now. I suspect no fonts
render correctly with current TOT Harfbuzz.
On 19/11/12 15:02, Behdad Esfahbod wrote: On 12-11-19 07:58 AM,
Jonathan Kew wrote:
Hi Behdad,
Hope you've had a good weekend - thanks for all the good work last week.
One thing has come up: it seems we've broken things for some
widely-used Khmer
fonts. E.g. the font hanuman.ttf used
One thing has come up: it seems we've broken things for some
widely-used Khmer
fonts. E.g. the font hanuman.ttf used on http://khmer.rfa.org/.
This font
has a 'liga' feature, but nevertheless relies on going through the
indic
shaper; it duplicates many of its lookups from 'abvs', etc.,
On 19/11/12 21:35, Jonathan Kew wrote:
I've put a test page at http://people.mozilla.org/~jkew/kh/test.html
that renders the sequences ក្រុ ខេ គៀ with 100+ fonts from several
sources. They're mostly different versions of KhmerOS fonts, but there
are a few others as well.
Some initial
On 20/11/12 17:06, Behdad Esfahbod wrote:
On 12-11-20 10:22 AM, Jonathan Kew wrote:
I'm becoming increasingly convinced we need to bite the bullet and reintroduce
explicit Ra support for fonts that lack 'pref'. Sigh.
Umm'k. Walking in this morning I was thinking that maybe checking
On 20/11/12 17:40, Jonathan Kew wrote:
On 20/11/12 17:06, Behdad Esfahbod wrote:
On 12-11-20 10:22 AM, Jonathan Kew wrote:
I'm becoming increasingly convinced we need to bite the bullet and
reintroduce
explicit Ra support for fonts that lack 'pref'. Sigh.
Umm'k. Walking in this morning I
On 20/11/12 18:42, Jonathan Kew wrote:
On 20/11/12 17:40, Jonathan Kew wrote:
On 20/11/12 17:06, Behdad Esfahbod wrote:
On 12-11-20 10:22 AM, Jonathan Kew wrote:
I'm becoming increasingly convinced we need to bite the bullet and
reintroduce
explicit Ra support for fonts that lack 'pref
On 18/12/12 22:23, Behdad Esfahbod wrote:
Hi Khaled Jonathan,
Here's another idea. Now that HarfBuzz shaper is fairly complete, we've been
adding lots of what I call introspection APIs. There's some more to add, but
after we're done it would be possible to write a tool that takes a font and
On 31/12/12 17:33, Jonathan Kew wrote:
On 4/12/12 22:21, Behdad Esfahbod wrote:
Hi Werner and Jonathan,
Just wanted to follow up and bring the new
hb_ot_layout_lookup_collect_glyphs() to your attention.
The implementation of this API is complete as far as I'm concerned.
HOWEVER,
I've done
On 2/1/13 21:45, Behdad Esfahbod wrote:
On 13-01-02 05:20 AM, Khaled Hosny wrote:
Hi Behdad,
Any estimates for when next HarfBuzz will be released? (for integrating
new XeTeX into TeX Live).
Just ask! I'll roll one today. I'll see if I can fix the issues Jonathan
reported first.
FWIW,
The current code in util/options.cc fails to build for me on OS X
because of the two uses of setmode(file, _O_BINARY). It seems that I
have a setmode function, so HAVE_SETMODE is true, but it's not actually
the same thing as you were expecting on Win32.
for all of MSVC, mingw and cygwin, at least.
On 02/11/2013 06:56 AM, Jonathan Kew wrote:
The current code in util/options.cc fails to build for me on OS X because of
the two uses of setmode(file, _O_BINARY). It seems that I have a setmode
function, so HAVE_SETMODE is true, but it's
On 19/2/13 14:40, Lóránt Pintér wrote: Hi,
I'm trying to disable some OpenType features while shaping. I'm trying
to shape VAV VAV and disable kerning for the first three characters.
If I don't set any features, kerning is on for the whole string: OK,
this is what I expect
If I set
On 19/2/13 22:34, Behdad Esfahbod wrote:
Hi Lóránt,
On 02/19/2013 12:20 PM, Lóránt Pintér wrote:
Hi,
I have a problem with half-colored ligatures, like (5) mfim in the image:
Right. That's one of the harder issues of text rendering.
I figured out two ways to do this, but neither is good
On 19/2/13 23:35, Lóránt Pintér wrote:
Using ZWNJ would be a great way of fixing it. And indeed it splits the
ligature all right, but it also destroys the kerning. Here's a little
test I did with HarfBuzz @ e0486fc1affd3796fb8f664e2e7fc208f1d2106c:
(the font has an fi ligature, and has some
, did we miss something here? It seems to me like the skippy_iter
in PairPosFormat1::apply doesn't know what it's looking for...
JK
--
*Lóránt Pintér*
Developer at Prezi http://prezi.com
On Wednesday, February 20, 2013 at 10:26 AM, Jonathan Kew wrote:
On 19/2/13 23:35, Lóránt Pintér wrote
Hi Behdad,
Just a small nit: I've noticed that our logs show a lot of warning:
comparison between signed and unsigned integer expressions messages
while compiling harfbuzz, originating from the comparison in
allocate_size. Would you mind adding a typecast (or perhaps making the
parameter a
On 28/2/13 01:09, Behdad Esfahbod wrote:
On 13-02-27 05:41 PM, Cibu Johny (സിബു) wrote:
When
MALAYALAM
VOWEL SIGN OO is repeated after a consonant, third one is displayed
separately
with a dotted circle. It should have behaved like the second OO
sign. Sample
text: കോോോ
If there is
On 1/3/13 04:12, Arky wrote:
Is it possible to run harfbuzz tests on gnu/Linux Ubuntu machine?
Depends on which tests you are interested in running. Can you
elaborate?
I would like to run automated tests to check language support for
specific languages.
The use case for this
On 6/3/13 19:19, Bobby de Vos wrote:
On 2013-03-05 17:58, Behdad Esfahbod wrote:
The problem is: Free Sans has both deva and dev2 tables. HarfBuzz correctly
chooses dev2. Now, we then proceed to find the base. For that, we check
whether Virama,RA matches the blwf feature. It doesn't. As
On 19/3/13 07:51, Behdad Esfahbod wrote:
Resending to HarfBuzz list, in case someone wants to give this a try.
Original Message
Subject: Re: Support for Khojki in HarfBuzz
Date: Mon, 18 Mar 2013 16:16:31 -0700
From: Anshuman Pandey pan...@umich.edu
To: Behdad Esfahbod
On 10/4/13 08:47, Nicolas Rougier wrote:
I tried to compile the ex-sdl-freetype-harfbuzz example and get:
Assertion failed: (buffer-content_type ==
HB_BUFFER_CONTENT_TYPE_UNICODE || (!buffer-len
buffer-content_type == HB_BUFFER_CONTENT_TYPE_INVALID)), function
hb_buffer_add_utf, file
On 23/4/13 22:18, Ed Trager wrote: Hi, Behdad and List Members,
In Firefox 20.0 on Mac OS X and in Firefox 18.0.2 on Ubuntu, I see that
the five PREFIXED TAI THAM DEPENDENT VOWEL SIGNS U+1A6E, 1A6F, 1A70,
1A71, 1A72 are correctly reordered and the spacing/kerning after
reordering is also
On 30/4/13 21:49, Behdad Esfahbod wrote:
On 13-04-28 05:27 PM, Georg Duffner wrote:
Hi,
I posted this on the XeTeX list. Khaled meant it could have something to do
with
http://cgit.freedesktop.org/harfbuzz/commit/?id=607feb7cff0e50f8738d2e49ca463fc9d7d494de
Recently I’ve changed the
On 1/5/13 13:57, Georg Duffner wrote:
Am 2013-05-01 11:30, schrieb Jonathan Kew:
Presumably, the way to handle this as a font developer is to explicitly
handle the ZWNJ, by adding something like
sub f' zwnj f by f;
ahead of the existing rule. That should in effect block the ligature
On 6/5/13 09:58, datao zhang wrote: Hi all:
After compare harfbuzz output (0.9.5 and 0.9.14), I find 5 main
differences. It seems that some change are not expected. Please argue
if you have different opinion.
Please state exactly what font you're using, so that others can test and
On 13/5/13 10:58, Olivier Berten wrote:
Well... any string with coeng for instance. The string I'm using is:
ពុម្ពអក្សរខ្មែរ
Here are the results of
hb-view --shapers=old Kh-Svayrieng.ttf ពុម្ពអក្សរខ្មែរ
hb-view --shapers=ot Kh-Svayrieng.ttf ពុម្ពអក្សរខ្មែរ
OK, so the problem is triggered by
On 14/6/13 00:06, Behdad Esfahbod wrote: Some progress, but there's
more to do. From the commit I just pushed out:
commit 79d1007a501fd63c0ba4d51038c513e6b8b94740
Author: Behdad Esfahbod beh...@behdad.org
Date: Thu Jun 13 19:01:07 2013 -0400
If variation selector is not consumed by
: Jonathan Kew j...@mozilla.com
diff --git a/gfx/harfbuzz/src/hb-ot-shape-normalize.cc
b/gfx/harfbuzz/src/hb-ot-shape-normalize.cc
--- a/gfx/harfbuzz/src/hb-ot-shape-normalize.cc
+++ b/gfx/harfbuzz/src/hb-ot-shape-normalize.cc
@@ -218,21 +218,28 @@ handle_variation_selector_cluster (const
out of hand!
Trivial patch attached.
JK
commit 18f86a7d957d83f845ab54003b7cf6e181669c72
Author: Jonathan Kew jfkth...@gmail.com
Date: Tue Jul 30 13:09:53 2013 +0100
[CoreText] Don't leak the CTLine object (and everything that hangs off it)
diff --git a/src/hb-coretext.cc b/src/hb
(regardless of the order).
Not sure if this is a font bug or HarfBuzz bug (just if the Uniscribe
backednd supported user features…).
Regards,
Khaled
On Sun, Aug 04, 2013 at 10:36:13AM +0100, Jonathan Kew wrote:
Hi Khaled,
Interestingly, it kerns as expected when using a somewhat older
LinLibertine
Hi Suresh,
Please specify the exact font (version? link?) being used, to ensure we
can reliably reproduce the problem. Thanks.
On 13/9/13 07:50, Suresh P wrote:
Hi,
It seems that the post base substitutions is not happening with
Malayalam reph. The uukara ligature glyph (used traditional
It's not really clear to me what you're asking or expecting. There are
several instances of U+0647 in your string looks like they should be
one initial, two medial and one final.
What exact version of harfbuzz and of tahoma is involved? The result I'm
seeing here matches your MSWord
On 17/9/13 15:58, Su Scott wrote:
Dear /Jonathan,/
/
/
OK, let me explain...
My seeing is like output.png which I attached,
If you compare output.png (wrong) with msword.png (correct)
you'll see the 1st medial U+0647 should NOT be in the final form
and the 2nd medial U+0647 should NOT be in the
Hi Behdad,
I've been experimenting a bit with Noto Devanagari, and come up with the
attached change to apply_lookup(). This fixes the problem where we were
advancing too far during processing the contextual lookups for the first
syllable, and hence missing the application of the same lookup
Another issue for us to look at in Paris... writing it up now so we
don't forget.
It looks to me like we may need to constrain Indic GSUB features to
syllable boundaries more consistently (sadly). Failure to follow
Uniscribe on this is leading to some poor results with NotoSansTelugu.
On 30/9/13 19:08, Behdad Esfahbod wrote:
On 13-09-30 09:05 AM, Toresson, Alexander (EXT) wrote:
Hello all,
For for example Bengali, a dotted circle (U+25CC) is inserted before
standalone combining marks. The same is not done for Thai, except for the
first character in a paragraph/text (--bot
In override_features_indic(), we currently disable 'kern' in
uniscribe-compatible mode. However, at least for the Noto Telugu font on
Win2012Server, I'm seeing that 'kern' *is* applied by Uniscribe. As a
result, running tests with it disabled is leading to a lot of unwanted
positioning
On 1/10/13 19:26, Behdad Esfahbod wrote:
On 13-10-01 08:03 AM, Eduardo Castineyra wrote:
Hi,
When I build hb as a dll, it does not export any symbol. I had to the project
to add a .def file I stole from the hb-shape win32 compiled example. But I
don't know what the proper way to get the
Turns out that zeroing marks by GDEF in Tibetan (commit
d5bd0590ae2fbc7b0dee86385a565aef00ffb835) has significantly regressed
our numbers for the Windows himalaya.ttf font. :(
The main problem seems to be the handling of
0F3C;TIBETAN MARK ANG KHANG GYON;Ps;0;ON;Y;TIBETAN LEFT BRACE
On 22/10/13 00:20, Behdad Esfahbod wrote:
On 13-10-20 01:44 PM, Shriramana Sharma wrote:
Hello. I'm running Clang 3.2 on Kubuntu Saucy.
Generally these warnings seem to be Ok.
Not entirely. The warning about OT_CM2 here:
hb-ot-shape-complex-indic.cc:166:27: warning: shift count = width of
It's a relatively small thing, but we can get a slight win for the case
where kerning has been disabled if we add an early return to
_hb_ot_shape_fallback_kern().
Looks to me like we can also reduce the use of buffer-... there when
kerning is being applied, which might help a bit (depending
Hey Behdad,
Turns out that for fonts such as Noto Devanagari and Gujarati, we're
spending an inordinate amount of time under lookup.is_inplace
(inplace_c) in apply_string().
We can get a big win for these fonts if we cache the is_inplace result
in the lookup-accelerator, instead of
On 28/10/13 14:47, Behdad Esfahbod wrote:
On 13-10-28 02:47 PM, Jonathan Kew wrote:
See what you think. An alternative implementation might be to initialize the
is_inplace flag during hb_ot_layout_lookup_accelerator_t::init() (then no need
for the _initialized flag, hence taking an if() out
read up about the OpenType layout process...
http://www.microsoft.com/typography/SpecificationsOverview.mspx
On Tue, 29 Oct 2013 10:40:59 +, Jonathan Kew wrote:
On 29/10/13 10:19, eduardo wrote:
Hi,
Why does hb return a list of advances when, given a glyph, it can easily
be extracted from
tools would be redundant.)
On Oct 29, 2013 10:10 PM, Jonathan Kew jfkth...@googlemail.com
mailto:jfkth...@googlemail.com wrote:
Hey Behdad,
I figured out why the dashboard figures make it look as though we're
surprisingly slow when running the XP fonts with simple scripts
(e.g
: Jonathan Kew jfkth...@gmail.com
Date: Tue Oct 29 19:16:43 2013 +
remove unused is_inplace methods and associated struct
diff --git a/src/hb-ot-layout-gpos-table.hh b/src/hb-ot-layout-gpos-table.hh
index 103676b..5e4326e 100644
--- a/src/hb-ot-layout-gpos-table.hh
+++ b/src/hb-ot-layout-gpos
On 29/10/13 23:03, Behdad Esfahbod wrote:
On 13-10-29 10:10 PM, Jonathan Kew wrote:
So I'd suggest it's worth doing something like this - unless of course you
want to go the whole way and implement smart plan caching with user
features, but IMO that sounds like it might be more effort than
On 16/12/13 15:44, Martin Hosken wrote:
Dear Bob,
On this subject: I would have expected language-specific forms to
work with Graphite rendering since the language table therein
appears to work (at least it does with WorldPad -- admittedly using
the old Graphite engine):
There was a bug
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