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ChangeLog.26
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ChangeLog.26
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2016-07-12 Werner Lemberg <wl@gnu.org>
* Version 2.6.5 released.
=========================
Tag sources with `VER-2-6-5'.
This commit immediately follows `[mac] Fix ftexport.sym target in
Jamfile.' on a separate branch, which was then merged with master
after the release.
* include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Comment out.
* docs/VERSION.TXT: Add entry for version 2.6.5.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.4/2.6.5/, s/264/265/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 5.
* builds/unix/configure.raw (version_info): Set to 18:5:12.
* CMakeLists.txt (VERSION_PATCH): Set to 5.
* docs/CHANGES: Updated.
2016-07-11 Werner Lemberg <wl@gnu.org>
Conditionally compile environment support.
* include/freetype/internal/ftobjs.h, src/autofit/afmodule.c,
src/base/ftobjs.c, src/cff/cffdrivr.c, src/truetype/ttdriver.c:
Decorate with `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES' where
necessary.
2016-07-11 Werner Lemberg <wl@gnu.org>
Handle properties in `FREETYPE_PROPERTIES' environment variable.
This commit covers the most important one.
* src/autofit/afmodule.c (af_property_set): Handle `warping',
`darkening-parameters', and `no-stem-darkening'.
* src/cff/cffdrivr.c (cff_property_set): Handle
`darkening-parameters', `hinting-engine', and `no-stem-darkening'.
* src/truetype/ttdriver.c (tt_property_set): Handle
`interpreter-version'.
2016-07-11 Werner Lemberg <wl@gnu.org>
Replace calls to `atol' with `strtol'.
We later on need strtol's `endptr' feature.
* include/freetype/config/ftstdlib.h (ft_atol): Replace with...
(ft_strtol): ... this.
* src/base/ftdbgmem.c (ft_mem_debug_init): Updated.
* src/cid/cidparse.c (cid_parser_new): Ditto.
* src/type42/t42drivr.c (t42_get_name_index), src/type42/t42objs.c
(T42_GlyphSlot_Load): Ditto.
2016-07-10 Werner Lemberg <wl@gnu.org>
Implement handling of `FREETYPE_PROPERTIES' environment variable.
Recognizing properties follows in another commit.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES): New macro.
* include/freetype/config/ftstdlib.h (ft_getenv): New macro.
* src/base/ftinit.c (ft_set_default_properties): New function to
parse `FREETYPE_PROPERTIES' and calling `ft_property_string_set'.
(FT_Init_FreeType): Updated.
2016-07-09 Werner Lemberg <wl@gnu.org>
Add function `ft_property_string_set'.
This is a preparation for handling an `FREETYPE_PROPERTIES'
environment variable to control (some) driver properties.
No change in functionality.
* src/base/ftobjs.c (ft_property_do): Add `value_is_string'
parameter.
(ft_property_string_set): New function.
(FT_Property_Set, FT_Property_Get): Updated.
* include/freetype/internal/ftobjs.h: Updated.
* include/freetype/internal/services/svprop.h
(FT_Properties_SetFunc): Add `value_is_string' parameter.
* src/autofit/afmodule.c (af_property_set), src/cff/cffdrivr.c
(cff_property_set), src/truetype/ttdriver.c (tt_property_set):
Updated, emitting an error currently if `value_is_string' is set.
2016-07-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[mac] Fix ftexport.sym target in Jamfile.
* Jamfile: Update the directories of the header files scanned for
ftexport.sym. They were incorrect since the migration of the
header files, on 2015-06-22. Either inexisting include/cache
(removed on 2006-03-20) is not needed to be listed explicitly.
Now ftmac.h is scanned only in the case of Mac OS & Mac OS X.
2016-07-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Sub-banding protocol revision.
Rasterization sub-banding is utilized at large sizes while using a
rather small fixed memory pool. Indeed it is possible to make an
educated guess how much memory is necessary at a given size for a
given glyph. It turns out that, for a large majority of European
glyphs, you should store about 8 times more boundary pixels than
their height. Or, vice versa, if your memory pool can hold 800
pixels the band height should be 100 and you should sub-band
anything larger than that. Should you still run out of memory,
FreeType bisects the band but you have wasted some time. This is
what has been implemented in FreeType since the beginning.
It was overlooked, however, that the top band could grow to twice
the default band size leading to unnecessary memory overflows there.
This commit fixes that. Now the bands are distributed more evenly
and cannot exceed the default size.
Now the magic number 8 is really suitable for rather simple European
scripts. For complex Chinese logograms the magic number should be
13 but that is subject for another day.
* src/smooth/ftgrays.c (gray_convert_glyph): Revise sub-banding
protocol.
2016-07-07 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[mac] Fix Savannah bug #48417.
Mac OS X linker throws errors when `-exported_symbol_list' input
file includes non-existing symbols. Reported by Ryan Schmidt.
* builds/exports.mk: Exclude ftmac.h from the headers for apinames
by default. Include it when ftmac.c would be compiled.
2016-07-06 Werner Lemberg <wl@gnu.org>
* src/truetype/ttinterp.c (TInstruction_Function): Removed, unused.
2016-07-05 Werner Lemberg <wl@gnu.org>
* Version 2.6.4 released.
=========================
Tag sources with `VER-2-6-4'.
* docs/VERSION.TXT: Update documentation and bump version number to
2.6.4.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.3/2.6.4/, s/263/264/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
* builds/unix/configure.raw (version_info): Set to 18:4:12.
* CMakeLists.txt (VERSION_PATCH): Set to 4.
* docs/CHANGES: Updated.
2016-07-05 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Fix compiler warning.
2016-07-04 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Variable type revision (part 2).
* src/smooth/ftgrays.c (TArea): Restore original definition as `int'.
(gray_render_line) [FT_LONG64]: Updated.
(gray_convert_glyph): 32-bit band bisection stack should be 32 bands.
(gray_convert_glyph_inner): Trace successes and failures.
2016-07-04 Werner Lemberg <wl@gnu.org>
[autofit] Handle single-point contours as segments.
Doing so allows us to link them to edges – some fonts like
`NotoSansGurmukhi-Regular' have such isolated points sitting exactly
on other outlines.
* src/autofit/aflatin.c (af_latin_hints_compute_segments): Don't
ignore one-point contours but handle them specially as one-point
segments.
(af_latin_hints_compute_edges): Append one-point segments to edges
if possible.
2016-07-02 Werner Lemberg <wl@gnu.org>
[autofit] Remove unused structure members.
* src/autofit/afhints.h (AF_SegmentRec, AF_EdgeRec): Remove
`num_linked'.
* src/autofit/afcjk.c (af_cjk_hints_link_segments): Updated.
2016-07-02 Werner Lemberg <wl@gnu.org>
[autofit] Update to Unicode 9.0.0.
* src/autofit/afranges.c (af_arab_nonbase_uniranges,
af_cyrl_uniranges): Add new data.
2016-07-01 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Variable type revision (part 1).
This patch restores original `TCoord' definition as `int' so that the
rendering pool is used more efficiently on LP64 platforms (unix).
* src/smooth/ftgrays.c (gray_TWorker, TCell, gray_TBand): Switch some
fields to `TCoord'.
(gray_find_cell, gray_render_scanline, gray_render_line, gray_hline,
gray_sweep, gray_convert_glyph): Updated.
2016-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Minor clean-ups.
* src/smooth/ftgrays.c (gray_TWorker): Remove redundant `ycount'.
(gray_sweep, gray_convert_glyph, gray_dump_cells): Updated.
2016-06-27 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Minor clean-ups.
* src/smooth/ftgrays.c (gray_convert_glyph): Do not use volatile
qualifier.
(gray_raster_render): Move span initializations from here.
(gray_sweep): ... to here and remove unused `target' argument.
2016-06-26 Alexei Podtelezhnikov <apodtele@gmail.com>
[pcf] Fix handling of very large fonts (#47708).
* src/pcf/pcfread.c (pcf_get_encodings): Make `encodingOffset' an
unsigned short.
Only reject `0xFFFF' as an invalid encoding offset.
2016-06-25 Werner Lemberg <wl@gnu.org>
[truetype] Really fix deallocation in case of error (#47726).
* src/truetype/ttgload.c (load_truetype_glyph): Thinko; initialize
`outline.points' also.
2016-06-23 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Consolidate memory management.
* src/smooth/ftgrays.c (gray_init_cells): Remove function.
(gray_TWorker): Remove fields that become local variables.
(gray_raster_render): Move rendering buffer declaration from here.
(gray_convert_glyph): ... to here and update accordingly.
2016-06-22 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Consolidate boundary checks.
Removing the checks from `gray_hline' shaves 1% off rendering speed.
* src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_MIN' and `FT_MAX'.
(gray_TWorker): No need to store `clip_box'.
(gray_hline): Remove unnecessary boundary checks.
(gray_convert_glyph): Move boundary checks from here.
(gray_raster_render): ... to here and consolidate.
2016-06-21 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Use `FT_Outline_Get_CBox'.
* src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_Outline_Get_CBox'.
(gray_compute_cbox): Remove this function.
(gray_convert_glyph): Update to use `FT_Outline_Get_CBox'.
2016-06-20 Werner Lemberg <wl@gnu.org>
[smooth] Remove compiler warnings.
* src/smooth/ftgrays.c (gray_convert_glyph): Fix reports from clang.
2016-06-20 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Sanitize memory management.
* src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.
2016-06-18 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Remove `band_shoot' that never worked.
* src/smooth/ftgrays.c (gray_TWorker): Remove `band_shoot'.
(gray_convert_glyph): Updated.
2016-06-17 Alexei Podtelezhnikov <apodtele@gmail.com>
[raster, smooth] Handle FT_RENDER_POOL_SIZE better.
* src/raster/ftraster.c (FT_MAX_BLACK_POOL): New macro.
(ft_black_render): Updated.
* src/smooth/ftgrays.c (FT_MAX_GRAY_POOL): New macro.
(gray_raster_render): Updated.
2016-06-16 Werner Lemberg <wl@gnu.org>
* src/base/md5.c: Updated to recent version.
2016-06-14 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/smooth/ftgrays.c (gray_hline): Optimize if-condition.
2016-06-13 Werner Lemberg <wl@gnu.org>
[autofit] Add support for Cherokee script.
* src/autofit/afblue.dat: Add blue zone data for Cherokee.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Cherokee standard characters.
* src/autofit/afranges.c: Add Cherokee data.
* src/autofit/afstyles.h: Add Cherokee data.
2016-06-09 David Capello <davidcapello@gmail.com>
[cmake] Avoid modifying `ftconfig.h' and `ftoption.h' files.
* CMakeLists.txt: Each time cmake is run those files are
modified and the whole FreeType library is recompiled. With this
change we change the files only if there are real modifications, so
we can avoid recompilations.
2016-06-09 Werner Lemberg <wl@gnu.org>
[bdf] Check number of properties (#48166).
* src/bdf/bdflib.c (_bdf_parse_start): Implement.
2016-06-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Re-enable new line renderer on 64-bit archs.
* src/smooth/ftgrays.c (gray_render_line): Conditionally re-enable new
implementation, where it is safe from overflows.
2016-06-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Minor clean-ups.
* src/smooth/ftgrays.c (gray_dump_cells): Move out of the way.
(gray_render_span): Remove spurious casts and streamline.
2016-06-07 Werner Lemberg <wl@gnu.org>
[autofit] Add support for Ethiopic script.
* src/autofit/afblue.dat: Add blue zone data for Ethiopic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Ethiopic standard characters.
* src/autofit/afranges.c: Add Ethiopic data.
* src/autofit/afstyles.h: Add Ethiopic data.
2016-06-07 Werner Lemberg <wl@gnu.org>
[autofit] Fix compilation with VS2016 (#48126).
This compiler doesn't recognize the end-of-comment sequence `*/' if
it immediately follows non-ASCII characters.
* src/autofit/afscript.h: Ensure whitespace before `*/'.
2016-06-04 Werner Lemberg <wl@gnu.org>
Fix a test for named instances (#48122).
This was missed while giving negative face indices an extended
meaning.
* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Implement.
2016-05-31 Nikolaus Waxweiler <madigens@gmail.com>
[truetype] Let SHPIX move points in the twilight zone in v40.
* src/truetype/ttinterp.c (Ins_SHPIX): Allow SHPIX to move points in
the twilight zone. Otherwise, treat SHPIX the same as DELTAP.
Unbreaks various fonts such as older versions of Rokkitt and DTL
Argo T Light that would glitch severely after calling ALIGNRP after a
blocked SHPIX.
2016-05-30 Werner Lemberg <wl@gnu.org>
[type42] Support `CharStrings' entry format as created by LilyPond.
* src/type42/t42parse.c (t42_parse_charstrings): Handle entries
having the format
(foo) cvn 12345 def
2016-05-28 Werner Lemberg <wl@gnu.org>
* src/autofit/afranges.c: Remove `UL' postfix from hex numbers.
Suggested by Alexei. `UL' is only needed for 16bit compilers, but
it seems noone is using this anymore (and we no longer test whether
FreeType compiles in such an environment). Otherwise, it is easy to
add the postfix to the `AF_UNICODE_RANGE' macro.
2016-05-26 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Shrink bisection stack.
The convergence of Bézier flatteners is fast with the deviation
from straight line being asymptotically cut 4-fold on each bisection.
This justifies smaller bisection stack size.
* src/smooth/ftgrays.c (gray_TWorker): Remove common `bez_stack'.
(gray_render_conic): Create and use conic `bez_stack'. Move back the
band analysis from...
(gray_conic_to): ... here.
(gray_render_cubic): Create and use cubic `bez_stack'. Move back the
band analysis from...
(gray_cubic_to): ... here.
(gray_move_to): Updated.
2016-05-25 Werner Lemberg <wl@gnu.org>
[autofit] Fixes for Armenian and Gujarati ranges.
* src/autofit/afranges.c (af_armn_uniranges): Corrected.
(af_guru_nonbase_uniranges): Make U+0A3E a base character.
2016-05-24 Werner Lemberg <wl@gnu.org>
[autofit] Add support for Armenian script.
* src/autofit/afblue.dat: Add blue zone data for Armenian.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Armenian standard characters.
* src/autofit/afranges.c: Add Armenian data.
* src/autofit/afstyles.h: Add Armenian data.
2016-05-23 Werner Lemberg <wl@gnu.org>
* builds/unix/unix-cc.in (LINK_LIBRARY): Use `-export-symbols'.
This was commented about 10 years ago – I think the reason then to
disable libtool's `-export-symbols' option was to give some badly
programmed applications access to internal FreeType functions.
I believe that we should no longer take care of such programs; the
number of symbols exported should be rather restricted as much as
possible.
2016-05-22 Werner Lemberg <wl@gnu.org>
[autofit] Add blue-zone support for Gurmukhi script.
This essentially moves the Gurmukhi script from the `Indic' hinter to
the `Latin' hinter.
* src/autofit/afblue.dat: Add blue zone data for Gurmukhi.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Gurmukhi standard characters and move
data out of AF_CONFIG_OPTION_INDIC block.
* src/autofit/afranges.c: Move Gurmukhi data out of
AF_CONFIG_OPTION_INDIC block.
* src/autofit/afstyles.h: Update Gurmukhi data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-05-21 Werner Lemberg <wl@gnu.org>
Minor clang++ fixes.
* src/base/ftobjs.c (FT_Add_Module), src/psaux/psobjs.c
(ps_parser_load_field), src/type1/t1load.c (parse_subrs): Add
initializer.
* src/cache/ftccache.h (FTC_CACHE_TRYLOOP_END): Avoid implicit
conversion from NULL to boolean.
2016-05-21 Werner Lemberg <wl@gnu.org>
Work around a bug of the C 8.0.0.1 compiler on AIX 5.3 (#47955).
* include/freetype/internal/ftmemory.h (cplusplus_typeof): Use
braces for `extern "C++"'.
2016-05-17 Nikolaus Waxweiler <madigens@gmail.com>
[truetype] Make TT_LOADER_SET_PP support subpixel hinting [3/3].
* src/truetype/ttgload.c (TT_LOADER_SET_PP): Replace macro with...
(tt_loader_set_pp): ... this new function.
Update all callers.
2016-05-17 Nikolaus Waxweiler <madigens@gmail.com>
[truetype] New implementation of v38 bytecode interpreter [2/3].
This patch actually modifies the bytecode interpreter.
See added comments in `ttinterp.h' for more information on this and
the following commit in the series.
* src/truetype/ttinterp.c (SUBPIXEL_HINTING): Replaced by...
(NO_SUBPIXEL_HINTING, SUBPIXEL_HINTING_INFINALITY,
SUBPIXEL_HINTING_MINIMAL): ...new macros.
(Direct_Move, Direct_Move_X, Direct_Move_Y): Handle backward
compatibility.
Updated.
(Ins_RS, Ins_FDEF, Ins_ENDF, Ins_CALL, Ins_LOOPCALL, Ins_MD):
Updated.
(Ins_INSTCTRL): Handle native ClearType mode flag.
Updated.
(Ins_FLIPPT, Ins_FLIPRGON, Ins_FLIPRGOFF): Handle backward
compatibility.
(Move_Zp2_Point): Ditto.
(Ins_SHP): Updated.
(Ins_SHPIX): Handle backward compatibility.
Updated.
(Ins_MSIRP, Ins_MDAP, Ins_MIAP, Ins_MDRP, Ins_MIRP): Updated.
(Ins_ALIGNRP): Updated.
(Ins_IUP, Ins_DELTAP): Handle backward compatibility.
Updated.
(Ins_GETINFO): Handle v38 flags.
Updated.
(TT_RunIns): Handle backward compatibility mode.
Updated.
2016-05-17 Nikolaus Waxweiler <madigens@gmail.com>
[truetype] New implementation of v38 bytecode interpreter [1/3].
This patch prepares data structures and the like.
See added comments in `ttinterp.h' for more information on this and
the following commits in the series.
* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Assign values to differentiate
between subpixel versions.
(TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY,
TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL): New macros.
* include/freetype/ftttdrv.h (TT_INTERPRETER_VERSION_40): New macro.
* include/freetype/internal/tttypes.h (TT_FaceRec): Updated.
* src/truetype/ttinterp.h (TT_ExecContextRec): Define new fields
`subpixel_hinting_lean', `vertical_lcd_lean',
`backward_compatibility', `iupx_called', iupy_called', and
`grayscale_cleartype' for new hinting mode.
* src/truetype/ttdriver.c (tt_property_set): Handle v38 and v40
interpreters conditionally.
* src/truetype/ttgload.c (TT_Hint_Glyph): Save phantom points unless
in v38 backward compatibility mode.
Updated.
(compute_glyph_metrics): Add v38 backward compatibility mode
constraint for adjusting advance widths.
Updated.
(tt_loader_init): Handle new flags `subpixel_hinting_lean',
`grayscale_cleartype', and `vertical_lcd_lean'.
Updated.
(tt_get_metrics, TT_Process_Simple_Glyph, TT_LOADER_SET_PP):
Updated.
* src/truetype/ttobjs.c (tt_driver_init): Conditionally set
default interpreter version number.
* src/truetype/ttsubpix.c, src/truetype/ttsubpix.h: Updated.
2016-05-17 Werner Lemberg <wl@gnu.org>
[cff] Fix matrix scaling (#47848).
* include/freetype/config/ftstdlib.h (FT_LONG_MIN): New macro.
* src/cff/cffparse.c (cff_parse_font_matrix): Use largest scaling
value of all matrix coefficients to scale matrix.
* src/cff/cffobjs.c (cff_face_init): Use `matrix->yx' member for
matrix normalization if `matrix->yy' is zero.
2016-05-16 Werner Lemberg <wl@gnu.org>
[base] Reject invalid sfnt Mac resource (#47891).
* src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Check validity
of `CID ' and `TYPE1' table offset and length.
2016-05-16 Werner Lemberg <wl@gnu.org>
[cid] Fix scanning for `StartData' and `/sfnts' (#47892).
* src/cid/cidparse.c (STARTDATA, STARTDATA_LEN, SFNTS, SFNTS_LEN):
New macros.
(cid_parser_new): Fix and document algorithm.
2016-05-16 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Improve the recursive reference detector.
The previous fix for #46372 misunderstood a composite glyph referring
same component twice as a recursive reference. See the discussion
https://lists.gnu.org/archive/html/freetype/2016-05/msg00000.html
Thanks to Khaled Hosny for finding this issue.
* src/truetype/ttgload.c (ft_list_get_node_at): A function to get
the i-th node from FT_List.
(load_truetype_glyph): In the traversal scan of the reference tree
in the composite glyph, we clear the nodes filled by previous
sibling chain.
2016-05-07 Werner Lemberg <wl@gnu.org>
[cache] Allow value 0 for face ID.
We never dereference `face_id', and some implementations might use a
running number instead of a pointer. Additionally, disallowing
value zero was undocumented.
* src/cache/ftccmap.c (FTC_CMapCache_Lookup), src/cache/ftcmanag.c
(FTC_Manager_LookupFace, FTC_Manager_RemoveFaceID): Remove test for
`face_id'.
2016-05-05 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] More efficient accounting of conic splits and draws.
A single decrement counter of segments to draw, instead of an array,
contains all the information necessary to decide when to split and
when to draw a conic segment. The number of splits before each draw is
equal to the number of trailing zeros in the counter.
* src/smooth/ftgrays.c (gray_TWorker): Remove `lev_stack'.
(gray_render_conic): Updated to use decrement counter of segments.
2016-05-05 Werner Lemberg <wl@gnu.org>
[cff, truetype] Fix logic for `FT_Property_Set'.
Otherwise some properties could be set to arbitrary values, which is
harmless, but querying could give wrong positive results.
* src/cff/cffdrivr.c (cff_property_set) [hinting-engine],
* src/truetype/ttdriver.c (tt_property_set) [interpreter-version]:
Only allow defined values.
2016-04-25 Werner Lemberg <wl@gnu.org>
[autofit] Add blue-zone support for Gujarati script.
This essentially moves the Gujarati script from the `Indic' hinter to
the `Latin' hinter.
* src/autofit/afblue.dat: Add blue zone data for Gujarati.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Gujarati standard characters and move
data out of AF_CONFIG_OPTION_INDIC block.
* src/autofit/afranges.c: Move Gujarati data out of
AF_CONFIG_OPTION_INDIC block.
* src/autofit/afstyles.h: Update Gujarati data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-04-24 Werner Lemberg <wl@gnu.org>
Minor.
* include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Protect macro
argument with parentheses.
2016-04-24 Werner Lemberg <wl@gnu.org>
[truetype] Fix deallocation in case of error (#47726).
* src/truetype/ttgload.c (load_truetype_glyph): Initialize fields in
`outline' that are going to be deallocated in case of error.
2016-04-23 Werner Lemberg <wl@gnu.org>
[autofit] Improve Georgian blue zone characters.
Suggested by Akaki Razmadze <razmadzekoko@gmail.com>.
* src/autofit/afblue.dat (AF_BLUE_STRING_GEORGIAN_MKHEDRULI_BOTTOM):
Updated.
* src/autofit/afblue.c: Regenerated.
2016-04-16 David Capello <davidcapello@gmail.com>
[cmake] Honor SKIP_INSTALL_* settings (as used in zlib).
As FreeType depends on zlib, if we don't install zlib (e.g., because
we defined SKIP_INSTALL_ALL), FreeType cannot be installed, too
(cmake triggers an error saying that FreeType cannot be installed
because zlib target isn't in the export set).
* CMakeLists.txt: Honor `SKIP_INSTALL_HEADERS',
`SKIP_INSTALL_LIBRARIES', and `SKIP_INSTALL_ALL' settings.
2016-04-16 Behdad Esfahbod <behdad@behdad.org>
[truetype] Another fix for non-intermediate GX tuples.
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Add some missing
cases.
2016-04-12 Alexei Podtelezhnikov <apodtele@gmail.com>
Remove forgotten macro.
* include/freetype/internal/internal.h
[FT_INTERNAL_POSTSCRIPT_GLOBALS_H]: Remove.
2016-04-09 Werner Lemberg <wl@gnu.org>
[autofit] Add support for Georgian scripts.
Georgian is problematic, since `uppercase' forms of Mkhedruli
(called Mtavruli) are not yet defined in Unicode, which means that
proper blue zones can't be defined. However, there is already a
proposal submitted to Unicode; see
https://www.unicode.org/L2/L2016/16034-n4707-georgian.pdf
Additionally, due to historical reasons, Unicode treats Khutsuri as
the same script as Mkhedruli, and so does OpenType. However, since
the two scripts have completely different shapes it can happen that
blue zones differ considerably. The tag `geok' used here (derived
from ISO 15924) to differentiate the two scripts is not an OpenType
tag in use. If we now have a font that contains both glyphs for
Mkhedruli and Khutsuri, and it uses OpenType features for both also,
HarfBuzz unavoidably treats all glyphs as `geor'. As a consequence,
blue zones for `geok' are not used for glyphs involved in the
OpenType features.
An issue not yet resolved is which OpenType feature should be used
to access Mtavruli glyph shapes; right now, FreeType doesn't set up
support for them, but it is easy to add them later on as soon as
more information is available.
* src/autofit/afblue.dat: Add blue zone data for Georgian.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Georgian standard characters.
* src/autofit/afranges.c: Add Georgian data.
* src/autofit/afstyles.h: Add Georgian data.
2016-04-05 Werner Lemberg <wl@gnu.org>
[autofit] Provide dummy blue zone for pseudo script `none'.
Even if the dummy hinter is used as the handler for `none' (which
doesn't use blue zones), it is more consistent than the old value
(which was 0), pointing to Arabic...
* src/autofit/afblue.dat: Add `AF_BLUE_STRINGSET_NONE'.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afstyles.h (none_dflt): Use AF_BLUE_STRINGSET_NONE.
2016-03-30 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrload.c (pfr_aux_name_load): Thinko (#47567).
2016-03-30 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrload.c (pfr_log_font_count): Better font size estimate.
2016-03-30 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrload.c (pfr_aux_name_load): Fix memory leak (#47567).
2016-03-29 Werner Lemberg <wl@gnu.org>
* src/base/ftadvanc.c (FT_Get_Advances): Fix invalid left shift.
2016-03-29 Werner Lemberg <wl@gnu.org>
[pfr] Fix binary search (#47514).
* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Handle border
conditions correctly.
2016-03-29 Werner Lemberg <wl@gnu.org>
[pfr] Minor.
* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Replace `left',
`right', and `middle' with `min', `max', and `mid' as used in other
FreeType binary search code.
(pfr_load_bitmap_metrics): Fix invalid left shift.
2016-03-29 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrtypes.h: Replace all enums with macros.
We need `~FOO' to unset bits, and only with unsigned values (which
`enum' isn't normally) this works cleanly.
2016-03-26 Werner Lemberg <wl@gnu.org>
[pfr] Robustify bitmap strike handling (#47514).
We did a binary search for a charcode without ensuring that the
searched data is ordered. Validating the order is now done lazily,
this is, the first access to a bitmap glyph triggers the order check
in the corresponding bitmap strike.
* src/pfr/pfrtypes.h (PFR_BitmapFlags): New values
`PFR_BITMAP_VALID_CHARCODES' and `PFR_BITMAP_CHARCODES_VALIDATED'.
* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Make `flags' argument
a pointer. Handle new PFR_BITMAP_XXX flags.
(pfr_slot_load_bitmap): Updated.
2016-03-26 Werner Lemberg <wl@gnu.org>
[pfr] Fix handling of compound glyphs.
Extra items are indicated with different bit positions.
* src/pfr/pfrtypes.h (PFR_GlyphFlags): Replace
`PFR_GLYPH_EXTRA_ITEMS' with `PFR_GLYPH_SIMPLE_EXTRA_ITEMS' and
`PFR_GLYPH_COMPOUND_EXTRA_ITEMS'.
* src/pfr/pfrgload.c (pfr_glyph_load_simple,
pfr_glyph_load_compound): Use them.
2016-03-25 Werner Lemberg <wl@gnu.org>
[pfr] Minor.
* src/pfr/pfrsbit.c, src/pfr/pfrobjs.c: Use flag names instead of
bare numbers.
2016-03-25 Werner Lemberg <wl@gnu.org>
[pfr] Various clang sanitizer fixes.
* src/pfr/pfrsbit.c (pfr_load_bitmap_metrics): Correctly handle
signed nibbles.
(pfr_slot_load_bitmap): Correctly exit frame in case of error.
Fix invalid left shifts.
2016-03-23 Werner Lemberg <wl@gnu.org>
Rename `VERSION.DLL' (#47472).
* docs/VERSION.DLL: Renamed to...
* docs/VERSIONS.TXT: ...this.
2016-03-23 Werner Lemberg <wl@gnu.org>
[raster, smooth] Directly test outline size (#47500).
This improves stand-alone compilation.
* src/base/ftoutln.c (FT_Outline_Render): Move cbox size test to...
* src/raster/ftraster.c (ft_black_render), src/smooth/ftgrays.c
(gray_raster_render): ...these functions.
2016-03-23 Werner Lemberg <wl@gnu.org>
[raster, smooth] Fix some clang sanitizer runtime issues.
* src/raster/ftraster.c (ft_black_reset, ft_black_set_mode,
ft_black_render): Harmonize signatures with `ftimage.h'.
* src/smooth/ftgrays.c (gray_raster_render, gray_raster_reset):
Ditto.
2016-03-22 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Minor.
This fixes an AddressSanitizer issue:
ttgload.c:430:7: runtime error: null pointer passed as argument 1,
which is declared to never be null
2016-03-21 Werner Lemberg <wl@gnu.org>
* src/autofit/afhints.c (af_glyph_hints_reload): Thinko.
This fixes the previous commit to this file.
2016-03-21 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Partly revert recent changes.
* src/smooth/ftgrays.c (gray_conic_to, gray_cubic_to): Rework
conditions to fix rendering issues.
2016-03-20 Werner Lemberg <wl@gnu.org>
[autofit] Show `near' points in tracing.
* src/autofit/afhints.h (AF_FLAG_NEAR): New macro.
* src/autofit/afhints.c (af_glyph_hints_dump_points): Implement it.
(af_glyph_hints_reload): Handle AF_FLAG_NEAR.
2016-03-18 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Minor refactoring and microoptimizations.
* src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move
band clipping from here.
(gray_conic_to, gray_cubic_to): ... to here.
(gray_render_line, gray_render_scanline): Initialize variables closer
to their use.
2016-03-17 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Minor refactoring.
* src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move
upscaling from here.
(gray_conic_to, gray_cubic_to): ... to here.
2016-03-15 Werner Lemberg <wl@gnu.org>
* src/autofit/aflatin.c (af_latin_compute_stem_width): Optimize.
2016-03-14 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Temporarily revert 6eb6158dd787 (#47114).