Commit Graph

3987 Commits

Author SHA1 Message Date
Werner Lemberg fff6dcf1fe Improve documentation of FT_LOAD_NO_SCALE. 2012-07-10 08:33:50 +02:00
Werner Lemberg 26472b4f16 Fix compilation with MSVC 5.0.
Problem reported by Peter Breitenlohner and Akira Kakuto.

* include/freetype/config/ftstdlib.h (ft_setjmp): Updated.
* src/sfnt/ttcmap.c (tt_face_build_cmaps): Remove cast.
2012-07-09 09:55:50 +02:00
Werner Lemberg 5a0af493e4 [autofit] Improve debugging messages; do some code cleanup.
* src/autofit/aflatin.c (af_latin_align_linked_edge,
af_latin_hint_edges): Synchronize with formatting used in the
ttfautohint project.
2012-07-09 08:19:25 +02:00
Gilles Espinasse 9123404c57 Fix strict-aliasing warning.
* src/base/ftglyph.c (FT_Glyph_To_Bitmap): Avoid double cast.
2012-07-07 11:17:02 +02:00
Dave Thomas fec113d724 [ARM] Fix FT_MulFix_arm.
* include/freetype/config/ftconfig.h (FT_MulFix_arm) [__arm__]:
Avoid ADDS instruction to clobber condition codes.
2012-07-07 10:57:30 +02:00
Werner Lemberg b6978dd0c9 [autofit] Do some code cleanup.
* src/autofit/afglobal.c (af_face_globals_new): Simplify.

* src/autofit/afhints.c: Use `FT_TRACE7' instead of `printf'
everywhere.
(FT_COMPONENT): New macro.
(af_glyph_hints_done): Simplify.

* include/freetype/internal/fttrace.h: Updated.
2012-07-06 19:38:44 +02:00
Werner Lemberg fd5ae9599a [autofit] Improve output of debugging information.
* src/autofit/afhints.c (af_glyph_hints_dump_segments): Print more
data; report no data.
(af_glyph_hints_dump_edges): Report no data.
2012-07-05 10:30:41 +02:00
Werner Lemberg 5210306145 Fix Savannah bug #36091.
* src/autofit/aflatin.c (af_latin_metrics_init_blues),
src/autofit/aflatin2.c (af_latin2_metrics_init_blues): Change the
constraint for testing round vs. flat segment: Accept either a
small distance or a small angle.
2012-07-04 17:20:33 +02:00
Werner Lemberg e8da532d2a [autofit] Improve comment. 2012-07-04 13:51:32 +02:00
Werner Lemberg 09e9b59605 [autofit] Beautify blue zone tracing.
* src/autofit/aflatin.c (af_latin_metrics_init_blues),
src/autofit/aflatin2.c (af_latin2_metrics_init_blues): Implement it.
2012-07-04 13:00:06 +02:00
Werner Lemberg 2a9c4552f6 [autofit] Quantize stem widths.
* src/autofit/afangles.c (af_sort_widths): Rename to...
(af_sort_and_quantize_widths): This.
Add code to avoid stem widths which are almost identical.
* src/autofit/aftypes.h, src/autofit/aflatin.c, src/autofit/afcjk.c:
Updated.
2012-07-03 11:54:12 +02:00
Werner Lemberg d4cbbf35d4 [autofit] Minor speed-up.
* src/autofit/afangles (af_sort_pos, af_sort_widths): Don't swap
elements if they are equal.
2012-07-03 11:01:53 +02:00
Werner Lemberg ad866e2c9a Fix `checking if gcc static flag -static works' test.
On my linux build tree, I receive yes answer in in every package I
build except freetype for this test checking if gcc static flag
`-static' works

On freetype, no is received, unless bzip2 and zlib are disabled using

  ./configure --without-bzip2 --without-zlib

The reason is that bzip2 and zlib tests add `-lz' and `-lbz2' to
LDFLAGS and this broke static flag test.

* builds/unix/configure.raw: Update CFLAGS and LDFLAGS only after
LT_INIT has run.
2012-06-30 07:59:28 +02:00
Infinality d0a827b340 [truetype] Fix various artifacts. 2012-06-28 20:34:26 -05:00
Gilles Espinasse 34de9d2644 Fix CFLAGS and LDFLAGS share configure test.
* builds/unix/configure.raw: Fix typo.
2012-06-28 06:45:26 +02:00
Werner Lemberg b3953aa7c4 [truetype] Set the `subpixel_positioned' flag unconditionally.
This is how the code currently behaves.

* src/truetype/ttgload.c (tt_loader_init): Do it.
2012-06-28 06:23:12 +02:00
Werner Lemberg 124709657a Fix conditional compilation.
* src/base/basepic.c: Use FT_CONFIG_OPTION_MAC_FONTS.
2012-06-27 08:44:30 +02:00
Werner Lemberg 83c0ebabc2 Fix conditional compilation.
* include/freetype/internal/ftcalc.h (FT_MulDiv_No_Round): Don't
enclose with `TT_USE_BYTECODE_INTERPRETER'; we now need the function
elsewhere also.

* src/autofit/afcjk.h: Use AF_CONFIG_OPTION_CJK.

* src/truetype/ttgload.c (tt_loader_init): Fix compiler warning.

* src/truetype/ttinterp.c (Ins_MSIRP): Fix compiler warning.

* src/truetype/ttinterp.h: Use
TT_CONFIG_OPTION_BYTECODE_INTERPRETER.
2012-06-27 08:16:06 +02:00
Infinality ed6508c41a [truetype] Remove unused rounding functionality. 2012-06-26 17:20:27 -05:00
Werner Lemberg 56751532d3 [cff] Fix Savannah bug #36705.
Handle numbers like 2.001 correctly.

* src/cff/cffparse.c (cff_parse_real): Avoid negative values for
`shift'.
2012-06-25 10:58:20 +02:00
Infinality 79e36baebb [truetype] Support subpixel hinting.
This is the large, famous `Infinality' patch to support ClearType
bytecode which has been available from
http://www.infinality.net/blog/ for some time, and which has been
refined over the last years.  While still experimental, it is now
mature enough to be included directly into FreeType.

Most of the code is based on the ClearType whitepaper written by
Greg Hitchcock

  http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx

which gives a detailed overview of the necessary changes to the
Microsoft rasterizer so that older fonts are supported.  However, a
lot of details are still missing, and this patches provides a
framework to easily handle rendering issues down to the glyph level
of certain fonts.

Note that ClearType support is not completely implemented!  In
particular, full support for the options `compatible_widths',
`symmetrical_smoothing, and `bgr' (via the GETINFO bytecode
instruction) is missing.

* src/truetype/ttsubpix.c: New file, providing code to handle
`tweaks', this is, rules for certain glyphs in certain fonts
(including wildcards) which need a special treatment.

* src/truetype/ttsubpix.h: New file, holding the tweaking rules.

* include/freetype/config/ftoption.h, src/devel/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): New macro.

* include/freetype/internal/ftobjs.h (FT_PIX_FLOOR_GRID,
FT_PIX_ROUND_GRID, FT_PIX_CEIL_GRID): New macros.

* src/truetype/truetype.c [TT_USE_BYTECODE_INTERPRETER]: Include
`ttsubpix.c'.

* src/truetype/ttgload.c: Include `ttsubpix.h'.
[All changes below are guarded by TT_CONFIG_OPTION_SUBPIXEL_HINTING.]

(tt_get_metrics): Set tweak flags.
(TT_Hint_Glyph): Call `FT_Outline_EmboldenXY' if necessary.
(TT_Process_Simple_Glyph): Compensate emboldening if necessary.
(compute_glyph_metrics): Handle `compatible widths' option.
(tt_loader_init): Handle ClearType GETINFO information bits.

* src/truetype/rules.mk (TT_DRC_SRC): Updated.

* src/truetype/ttinterp.c: Include `ttsubpix.h'.
[Where necessary, changes below are guarded by
TT_CONFIG_OPTION_SUBPIXEL_HINTING.]

(Direct_Move, Direct_Move_X): Extended.
(Round_None, Round_To_Grid, Round_To_Half_Grid, Round_Down_To_Grid,
Round_Up_To_Grid, Round_To_Double_Grid, Round_Super, Round_Super_45,
SetSuperRound): Add parameter to handle the number of grid lines per
pixel.
(SET_SuperRound, ROUND_None, CUR_Func_round): Updated.
(DO_SROUND, DOS45ROUND, DO_ODD, DO_EVEN): Updated.
(DO_ROUND, DO_NROUND): Updated.
(DO_RS): Take care of `Typeman' bytecode patterns.
(Ins_FDEF): Add some debugging code.  Commented out.
(Ins_ENDF): Restore state.
(Ins_CALL, Ins_LOOPCALL): Handle inline delta functions.
(Ins_MD): Handle `Vacuform' rounds.
(Move_Zp2_Point, Ins_SHPIX, Ins_MSIRP, Ins_MDAP, Ins_MIAP,
Ins_MDRP, Ins_MIRP): Handle tweaks.
(Ins_ALIGNRP): Add tweak guard.
(Ins_IUP, Ins_DELTAP): Handle tweaks.
(Ins_GETINFO): Handle new ClearType bits.
(TT_RunIns): Handle tweaks.

* src/truetype/ttinterp.h: Updated.
(SPH_TweakRule, SPH_ScaleRule): New structures for tweaks.
(TT_ExecContextRec): Add members for subpixel hinting support.

* src/truetype/ttobjs.h (TT_DefRecord): Add `inline_delta' member.
2012-06-18 10:36:06 +02:00
Werner Lemberg 320613eeb8 * Version 2.4.10 released.
==========================

Tag sources with `VER-2-4-10'.

* docs/VERSION.DLL: Update documentation and bump version number to
2.4.10.

* README, Jamfile (RefDoc),
builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj,
builds/win32/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/2.4.9/2.4.10/, s/249/2410/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 10.

* builds/unix/configure.raw (version_info): Set to 15:0:9.
2012-06-15 06:45:12 +02:00
Alexei Podtelezhnikov cea9d7a682 * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Improve spacing.
* docs/CHANGES: Updated.
2012-06-15 06:33:46 +02:00
suzuki toshiya a03cb019aa * builds/exports.mk: Add CCexe_CFLAGS and CCexe_LDFLAGS.
to pass special compiler/linker flags under cross development.
Suggested by Savannah bug #36367.

ChangeLog on 2010-07-15 saying as they were removed was wrong
for the official trunk of FreeType2.  This commit is the first
introduction of them.
2012-06-14 17:56:01 +09:00
Werner Lemberg 2d67e9b555 * docs/CHANGES: Updated. 2012-06-14 08:46:04 +02:00
suzuki toshiya 6c7c3de197 [truetype] Add new versions of NEC FA family to tricky font list.
NEC FA family dated in 1996 have different checksum.
Reported by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>; see

  http://lists.gnu.org/archive/html/freetype-devel/2012-06/msg00023.html

* src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): 4 sets
of fpgm & prep table checksums for FA-Gothic, FA-Minchou,
FA-RoundedGothicM, FA-RoundedGothicB are added.  The family
names in sample PDF are truncated, thus the list of the
family names in tt_check_trickyness_family() is not updated yet.
2012-06-14 01:38:20 +09:00
Werner Lemberg fc61b5f211 Fix Savannah bug #36634.
Minor documentation improvement of FT_Get_Char_Index.
2012-06-12 08:07:19 +02:00
Werner Lemberg 495bd3cc4f [ftraster] Fix rounding issue causing visual artifacts.
Problem reported by jola <hans-jochen.lau@lhsystems.com>; see

  http://lists.gnu.org/archive/html/freetype-devel/2012-05/msg00036.html

* src/raster/ftraster.c (SMulDiv_No_Round): New macro.
(Line_Up): Use it.
* src/raster/ftmisc.h (FT_MulDiv_No_Round): Copied from `ftcalc.c'.
2012-06-06 13:24:04 +02:00
Werner Lemberg 5715ff4606 configure.raw: Doc improvement. 2012-05-29 13:57:12 +02:00
Alexei Podtelezhnikov 2bdd094976 * src/base/ftoutln.c (FT_Outline_Get_Orientation): Simplify.
We now use the cross product of the direction vectors to compute the
outline's orientation.
2012-05-28 23:11:03 +02:00
Werner Lemberg aa6895c176 * docs/CHANGES: Updated. 2012-05-28 22:55:54 +02:00
Alexei Podtelezhnikov f875fc7117 New function FT_Outline_EmboldenXY.
* include/freetype/ftoutln.h (FT_Outline_EmboldenXY): Define it.

* src/base/ftoutln.c (FT_Outline_EmboldenXY): Implement it, using a
simplified embolding algorithm.
(FT_Outline_Embolden): Make it a special case of
`FT_Outline_EmboldenXY'
2012-05-28 22:34:58 +02:00
Werner Lemberg 8be5d3ac0d Improve documentation w.r.t. stroking and advance widths.
Based on suggestions from johnpf74 <jfalcone@ea.com>.
2012-05-24 07:05:03 +02:00
Werner Lemberg 8dc17bb47b [type1] Fix Savannah bug #36386.
* src/type1/t1load.c (t1_load_keyword): Ignore keyword if context is
not valid.
2012-05-07 11:24:48 +02:00
Werner Lemberg 448d128ec5 Document that the auto-hinter needs a valid cmap. 2012-04-24 15:25:54 +02:00
Werner Lemberg 447f0773ee Minor documentation improvement. 2012-04-07 19:13:29 +02:00
Werner Lemberg 9c6d1ac39c Remove compiler warning.
* src/truetype/ttgload.c (TT_Load_Glyph)
[!TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: Access `glyph->face' directly.
2012-04-07 06:39:25 +02:00
Werner Lemberg 8be32d2f4a [autofit] Properly copy scaler flags to script metrics object.
Without this patch, only the dummy and cjk autohinter modules get
them (since they copy the whole scaler object).

* src/autofit/aflatin.c (af_latin_metrics_scale),
src/autofit/aflatin2.c (af_latin2_metrics_scale): Implement it.
2012-03-28 12:21:50 +02:00
Alexei Podtelezhnikov 0c5789f9c2 [bdflib] Remove redundant macro.
* src/bdf/bdflib.c (isdigok): Remove and replace with sbitset, which
is exactly the same.
2012-03-22 07:05:40 +01:00
suzuki toshiya f0b194141d [configure] fix Savannah bug #35644.
* builds/unix/configure.raw: Check `-ansi' flag works even if gcc
is used.  Bionic libc headers for Android lose the consistency
when they are parsed with __STDC_VERSION__ older than 199901L or
__STRICT_ANSI__.
2012-03-21 15:42:14 +09:00
Werner Lemberg 37b5c92f83 [bdf] Improvement to Savannah bug #35656.
* src/bdf/bdflib.c (isdigok): Add cast, as suggested in report.
2012-03-20 07:23:12 +01:00
Werner Lemberg 9e0c667413 Improve misleading documentation note. 2012-03-18 16:00:38 +01:00
Werner Lemberg b43e0f4413 [type1] Fix Savannah bug #35847.
* src/type1/t1load.c (parse_subrs): Fix the loop exit condition;
we want to exit when we have run out of data.
2012-03-17 07:42:43 +01:00
Werner Lemberg 649c673a8f [bdf] Really fix 35658.
* src/bdf/bdflib.c (_bdf_list_split): Add one more `field' initializer.
2012-03-16 21:12:41 +01:00
Werner Lemberg ad05bac605 [sfnt] Make arrays static like all others.
* src/sfnt/ttload.c (tt_face_load_maxp, tt_face_load_os2),
src/sfnt/ttmtx.c (tt_face_load_hhea): Add `static' keyword to frame
fields.
2012-03-14 18:34:36 +01:00
Huw Davies 3650f80165 [sfnt] A refinement of the previous commit.
* src/sfnt/sfobjs.c (tt_name_entry_ascii_from_utf16,
tt_name_entry_ascii_from_other): Stop at null byte.
2012-03-14 18:29:57 +01:00
Huw Davies bf06b62a09 [sfnt] Add `name' table compatibility to MS Windows.
* src/sfnt/sfobjs.c (tt_name_entry_ascii_from_utf16,
tt_name_entry_ascii_from_other): Don't replace `\0' with question
marks when converting strings.
2012-03-14 14:44:46 +01:00
Werner Lemberg 9a55cb7a71 Fix Savannah bug #35833.
Based on the patch given in the bug report.

* src/type1/t1load.c (IS_INCREMENTAL): New macro.
(read_binary_data): Add parameter `incremental'.
Update all callers using `IS_INCREMENTAL'.
2012-03-14 14:40:03 +01:00
Werner Lemberg cbe9029203 Comment typo. 2012-03-13 08:52:31 +01:00
Werner Lemberg 1036409692 [autofit] Return correct linear advance width values.
This was quite a subtle bug which accidentally showed up with glyph
`afii10023' of arial.ttf (version 2.76).  This glyph is a composite;
the first component, `E', has an advance width of 1366 font units,
while the advance width of the composite itself (which looks like
uppercase `E' with dieresis) is 1367 font units.  I think this is
actually a bug in the font itself, because there is no reason that
this glyph has not the same width as uppercase `E' without the
dieresis.  Anyway, it helped identify this problem.

Using the TrueType hinter, the correct value (1367) of `afii10023'
was returned, but the autohinter mysteriously returned 1366.

Digging in the code showed that the autohinter recursively calls
FT_Load_Glyph to load the glyph, adding the FT_LOAD_NO_SCALE load
flag.  However, the `linearHoriAdvance' field is still returned as a
scaled value.  To avoid scaling twice, the old code in autofit reset
`linearHoriAdvance', using the `horiAdvance' field.  This seemed to
work since FT_LOAD_NO_SCALE was in use, but it failed actually,
because `horiAdvance' is defined as the distance of the first
subglyph's phantom points, which in turn are initialized using the
advance width of the first subglyph.  And as the given example
shows, these widths can differ.

* src/autofit/afloader.c (af_loader_load_g): Temporarily set
FT_LOAD_LINEAR_DESIGN while calling FT_Load_Glyph to get unscaled
values for the linear advance widths.
2012-03-11 15:20:32 +01:00