Commit Graph

4367 Commits

Author SHA1 Message Date
Werner Lemberg
c606428693 [truetype] Correctly reset point tags for glyph components.
Problem reported by Nigel Tao <nigeltao@golang.org>.

* src/truetype/ttgload.c (TT_Process_Composite_Glyph): Fix loop.
2013-11-05 13:29:15 +01:00
Werner Lemberg
e4db812790 Typos. 2013-11-03 20:29:37 +01:00
Werner Lemberg
7d449436e6 [truetype] Fix GETINFO opcode handling of subpixel hinting bits.
* src/truetype/ttinterp.c (Ins_GETINFO): Don't request bit 6 set to
get info on subpixel hinting.

* docs/CHANGES: Updated.
2013-11-02 11:36:37 +01:00
Werner Lemberg
35b0818986 Fix Savannah bug #40451.
Simply apply the patch from the bug report.

* builds/unix/ftconfig.in, builds/vms/ftconfig.h,
include/freetype/config/ftconfig.h: The used #pragma directives only
work with gcc versions 4.6 and higher.
2013-11-02 08:28:41 +01:00
Werner Lemberg
afa0d59ee5 * docs/CHANGES: Updated. 2013-11-01 22:27:27 +01:00
Werner Lemberg
ebf52d6a90 [truetype] Minor code refactoring.
Two benefits: The allocated FDEF (and IDEF) array gets slightly
smaller, and the `ttdebug' demo program has access to function
numbers without additional costs.

Fortunately, no changes to FontForge are necessary – this is the
only external TrueType debugger I know of, but others may exist and
should check the code accordingly.

* src/truetype/ttinterp.h (TT_CallRec): Replace `Cur_Restart' and
`Cur_End' with a pointer to the corresponding `TT_DefRecord'
structure.

* src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF, Ins_ENDF,
Ins_CALL, Ins_LOOPCALL, Ins_UNKNOWN, TT_RunIns <Invalid_Opcode>):
Updated.
2013-11-01 13:26:28 +01:00
Werner Lemberg
e921bdebde Comment fix. 2013-11-01 12:41:27 +01:00
Werner Lemberg
0c61c096b8 Comment fixes. 2013-10-28 05:09:21 +01:00
Werner Lemberg
ee5105107b [sfnt] Implement support for `OS/2' table version 5.
See

  http://typedrawers.com/discussion/470/new-microsoft-size-specific-design-selection-mechanism

for the announcement.

* include/freetype/tttables.h (TT_OS2): Add fields
`usLowerPointSize' and `usUpperPointSize'.  Since FreeType returns
this structure only as a pointer through `FT_Get_Sfnt_Table', there
shouldn't be any ABI problems.

* src/sfnt/ttload.c (tt_face_load_os2): Implement it.

* docs/CHANGES: Updated.
2013-10-27 07:25:35 +01:00
Werner Lemberg
994a859831 * README.git, docs/CHANGES, docs/INSTALL: Updated. 2013-10-24 08:50:34 +02:00
John Cary
a0e4a73fd4 Provide cmake support.
* CMakeLists.txt: New file.
2013-10-24 08:49:08 +02:00
Dave Arnold
4cfa8fc5be Comment on no-stem-darkening & darkening-parameters 2013-10-23 21:31:00 +02:00
Kenneth Miller
4d87ac8a7f Provide support for x64 builds in Visual C++ project files.
* src/builds/win32: Renamed to...
* src/builds/windows: This.

* src/builds/windows/vc2010/*: Updated to handle x64 target.

* src/builds/windows/*.mk, docs/INSTALL.GNU: s/win32/windows/ where
appropriate.
2013-10-23 20:10:56 +02:00
Werner Lemberg
1eb06e67a0 Minor doc improvement. 2013-10-22 10:42:38 +02:00
Werner Lemberg
db9159c471 Add md5 URL. 2013-10-22 10:27:50 +02:00
Werner Lemberg
604838d5ba * src/base/md5.c, src/base/md5.h: Updated to recent version.
* src/base/ftobjs.c: Updated; `md5.c' no longer uses `free'.
2013-10-22 01:10:10 +02:00
Werner Lemberg
75efc2d0bd [autofit] s/SMALL_TOP/X_HEIGHT/.
* src/autofit/afblue.dat: Updated.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/aflatin.c, src/autofit/aflatin.h,
src/autofit/atlatin2.c: Updated.
2013-10-19 21:46:03 +02:00
Werner Lemberg
34efe05ce0 * src/autofit/afblue.dat: s/MINOR/DESCENDER/.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2013-10-19 21:14:40 +02:00
Werner Lemberg
a5f22a9ed2 [autofit] Add description strings to script entries.
Currently, this is unused.

* src/autofit/afscript.h: Do it.
* src/autofit/afglobal.c, src/autofit/afpic.c,
src/autofit/aftypes.h: Updated.
2013-10-17 11:08:25 +02:00
Werner Lemberg
955f6a86a3 [autofit] Improve tracing message for extra light flag.
* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Do it.
2013-10-16 19:47:57 +02:00
Chongyu Zhu
41632b58ef [arm] Fix thumb2 inline assembly under LLVM.
When using `ADD' with an immediate operand, the instruction is
actually `ADD Rd, Rn, #<imm12>', that is, the maximum of the
immediate operand cannot exceed 4095.  It will fail to compile with
LLVM.

However, in GCC, due to some legacy compatibility considerations,
`ADD.W' will be automatically emitted when the immediate operand is
larger than 4095.

* builds/unix/ftconfig.in, include/freetype/config/ftconfig.h
(FT_MulFix_arm) [__GNUC__]: Support clang compiler.

* src/truetype/ttinterp.c (TT_MulFix14_arm) [__GNUC__]: Ditto.
2013-10-15 11:40:34 +02:00
Werner Lemberg
b6695243b7 [autofit] Improve tracing of `latin' hinter.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Report blue
zone types.
(af_latin_metrics_scale_dim): Report scaling changes due to x height
alignment.
Report scaled stroke width and blue zone values.
2013-10-12 10:33:04 +02:00
Werner Lemberg
2c56f2ab90 Improve last ChangeLog entry. 2013-10-07 22:01:00 +02:00
Dave Arnold
e845a85ea5 * src/cff/cf2font.c (cf2_computeDarkening): Avoid division by zero. 2013-10-03 23:04:29 +02:00
Werner Lemberg
1a39944fa0 Updated CHANGES file. 2013-10-03 06:16:50 +02:00
Darrell Bellert
01af71d42f * src/sfnt/ttload.c (tt_face_load_pclt): Fix `pclt_fields'. 2013-10-02 22:04:07 +02:00
Dave Arnold
0b33045285 * src/cff/cf2font.c (cf2_computeDarkening): Initialize darkenAmount.
This line was lost in commit 89ca1fd6 (from 2013-06-25).  The effect
is to use a previous darkening amount when producing an unhinted,
unscaled outline.  This can cause autohint samples in ftgrid and
ftview to be based on darkened CFF outlines instead of unhinted,
undarkened ones.
2013-10-02 11:04:06 +02:00
Dave Arnold
3a2cb0f881 Fix Savannah bug #39295.
The bug was caused by switching to the initial hintmap (the one in
effect when `moveto' executes) just before drawing the final element
in the charstring.  This ensured that the path was closed (in both
Character Space and Device Space).  But if the final element was a
curve and if the final hintmap was different enough from the initial
one, then the curve was visibly distorted.

The first part of the fix is to draw the final curve using the final
hintmap as specified by the charstring.  This corrects the
distortion but does not ensure closing in Device Space.  It may
require the rasterizer to automatically generate an extra closing
line.  Depending on the hintmap differences, this line could be from
zero to a couple pixels in length.

The second part of the fix covers the case where the charstring
subpath is closed with an explicit line.  We now modify that line's
end point to avoid the distortion.

Some glyphs in the bug report font (TexGyreHeros-Regular) that show
the change are:

  25ppem    S (98)
  24ppem    eight (52)
  25.5ppem  p (85)

Curves at the *end* of a subpath are no longer distorted.  However,
some of these glyphs have bad hint substitutions in the middle of a
subpath, and these are not affected.

The patch has been tested with a set of 106 fonts that shipped with
Adobe Creative Suite 4, together with 756 Open Source CFF fonts from
Google Fonts.  There are 1.5 million glyphs, of which some 20k are
changed with the fix.  A sampling of a few hundred of these changes
have been examined more closely, and the changes look good (or at
least acceptable).

* src/cff/cf2hints.h (CF2_GlyphPathRec): New element `pathIsClosing'
to indicate that we synthesize a closepath line.

* src/cff/cf2hints.c (cf2_glyphpath_init): Updated.
(cf2_glyphpath_pushPrevElem): If closing, use first hint map (for
`lineto' operator) and adjust hint zone.
For synthesized closing lines, use end point in first hint zone.
(cf2_glyphpath_lineTo): Take care of synthesized closing lines.  In
particular, shift the detection of zero-length lines from character
space to device space.
(cf2_glyphpath_closeOpenPath): Remove assertion.
Updated.
2013-09-29 16:17:02 +02:00
Werner Lemberg
4f9760e752 [autofit] Remove outdated comment. 2013-09-25 23:32:25 +02:00
Werner Lemberg
b75a8b8817 * src/autofit/aflatin.c (af_{grek,cyrl}_uniranges): Fix arrays. 2013-09-25 09:46:36 +02:00
Werner Lemberg
964317e8db Minor. 2013-09-25 09:22:40 +02:00
suzuki toshiya
ac0f4454f7 [bdf, pcf] Refuse non-zero face_index.
Suggested by Akira Tagoh, see

  http://lists.gnu.org/archive/html/freetype/2013-09/msg00030.html

* src/bdf/bdfdrivr.c (BDF_Face_Init): Return Invalid_Argument error
when the font could be opened but non-zero face_index is given.
* src/pcf/pcfdrivr.c (PCF_Face_Init): Ditto.

* src/type42/t42objs.c (T42_Face_Init): Remove unrequired FT_UNUSED
macro for face_index because it is validated in later.
2013-09-25 10:57:17 +09:00
Werner Lemberg
4de7787f22 Fix Savannah bug #40090.
* src/autofit/afcjk.c (af_cjk_metrics_scale): Revert commit
306f8c5d (from 2013-08-25) affecting this function.
2013-09-23 22:10:08 +02:00
Werner Lemberg
5a4c5a5b23 [autofit] Disunify Cyrillic and Greek handling from Latin.
* src/autofit/afscript.h: Add Cyrillic and Greek.

* src/autofit/afblue.dat (AF_BLUE_STRINGSET_GREK,
AF_BLUE_STRINGSET_CYRL): Add blue zones for Greek and Cyrillic.
(AF_BLUE_STRINGSET_LATN): Fix typo.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/aflatin.c (af_grek_uniranges, af_cyrl_uniranges): New
arrays.
(af_grek_script_class, af_cyrl_script_class): New scripts.
* src/autofit/aflatin.h: Updated.
2013-09-22 22:37:26 +02:00
Werner Lemberg
2cca96694f * docs/CHANGES: Updated. 2013-09-20 07:23:34 +02:00
Behdad Esfahbod
31e726d939 Fix vertical size of emboldened glyphs.
Cf. https://bugzilla.gnome.org/show_bug.cgi?id=686709

* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Adjust `horiBearingY'
also.
2013-09-20 07:20:53 +02:00
Alexei Podtelezhnikov
52381c14e3 * include/freetype/ftoutln.h: Correct FT_Outline_Get_Orientation
algorithm description.
2013-09-11 23:25:56 -04:00
Werner Lemberg
3f542498b2 [autofit] Improve Hebrew rendering.
This change introduces a new blue zone property
`AF_BLUE_PROPERTY_LATIN_LONG' to make the auto-hinter ignore short
top segments.

* src/autofit/afblue.dat: Fix Hebrew blue strings.
Use AF_BLUE_PROPERTY_LATIN_LONG for AF_BLUE_STRING_HEBREW_TOP.

* src/autofit/afblue.hin (AF_BLUE_PROPERTY_LATIN_LONG): New macro.

* src/autofit/afblue.c, src/autofit/afblue.h: Updated.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Handle
`AF_LATIN_IS_LONG_BLUE'.

* src/autofit/aflatin.h (AF_LATIN_IS_LONG_BLUE): New macro.
2013-09-11 23:08:31 +02:00
Werner Lemberg
00ea2a133b [doc] s/which/that/ where appropriate.
Note that this is a try by a non-native English speaker whose mother
language (German) doesn't have this distinction at all...
2013-09-03 11:33:10 +02:00
Werner Lemberg
504f5b4a8d Fix Savannah bug #39905 (documentation only). 2013-09-02 22:08:12 +02:00
Werner Lemberg
85a7fdf3c6 [sfnt] Fix frame access while reading WOFF table directory.
* src/sfnt/sfobjs.c (woff_open_font): Using single memory frame
while reading the directory entries for the whole loop.
2013-08-29 21:03:05 +02:00
Werner Lemberg
d689d1cf78 Implement support for WOFF containers.
We simply synthesize a SFNT from the WOFF, create a memory stream
for the new data, and load the SFNT as usual.

Does NOT add any API to access WOFF metadata or private blocks.

* include/freetype/internal/tttypes.h (WOFF_HeaderRec,
WOFF_TableRec): New structures.

* include/freetype/tttags.h (TTAG_wOFF): New macro.

* src/base/ftobjs.c (FT_Open_Face): Set `stream' after calling
`open_face'.

* src/sfnt/sfobjs.c [FT_CONFIG_OPTION_SYSTEM_ZLIB]: Include
`FT_GZIP_H'.
(WRITE_BYTE, WRITE_USHORT, WRITE_ULONG): New temporary macros for
writing to a stream.
(sfnt_stream_close, compare_offsets, woff_open_font): New functions.
(sfnt_open_font): Handle `TTAG_wOFF'.
(sfnt_init_face): Set `stream' after calling `sfnt_open_font'.

* src/truetype/ttobjs.c (tt_face_init): Set `stream' after calling
`sfnt->init_face'.

* src/base/ftobjs.c (open_face): Use a pointer to FT_Stream as an
argument so that a changed stream survives.
Update callers.
2013-08-29 17:53:40 +02:00
Werner Lemberg
dc240524ff [gzip] New function `FT_Gzip_Uncompress'.
This is modeled after zlib's `uncompress' function.  We need this
for WOFF support.

* include/freetype/ftgzip.h, src/gzip/ftgzip.c (FT_Gzip_Uncompress):
New function.

* src/gzip/rules.mk: Rewrite to better reflect dependencies.
2013-08-29 17:53:24 +02:00
Werner Lemberg
5195ecd62f [autofit] Fix `make multi' compilation.
* src/autofit/afblue.cin, src/autofit/afblue.c: Don't include
`afblue.h' but `aftypes.h'.
* src/autofit/afcjk.c: Don't include `aftypes.h' but `afglobal.h'.
2013-08-28 17:41:21 +02:00
Werner Lemberg
e0f39aefde [autofit] Fix C++ compilation.
* src/autofit/afglobal.c (af_face_globals_get_metrics),
src/autofit/afdummy.c (af_dflt_script_class), src/autofit/afindic.c
(af_deva_script_class): Use proper casts.
2013-08-28 17:34:01 +02:00
Behdad Esfahbod
c799dd6725 * src/sfnt/ttload.c (tt_face_load_font_dir): Fix sign typos. 2013-08-27 21:46:03 +02:00
Behdad Esfahbod
bd3849e7de FT_Open_Face: Improve external stream handling.
If the font's `clazz->init_face' function wants to swap to new
stream, handling of whether original stream was external could
result to either memory leak or double free.  Mark externality into
face flags before calling `init_face' such that the clazz can handle
external streams properly.

* src/base/ftobjs.c (FT_Open_Face): Move code to set
FT_FACE_FLAG_EXTERNAL_STREAM to...
(open_face): This function.
2013-08-27 21:43:38 +02:00
Werner Lemberg
bcd8c0b0eb Remove `FT_SqrtFixed' function.
It's no longer used.

* include/freetype/internal/ftcalc.h, src/base/ftcalc.c: Do it.
2013-08-27 21:36:03 +02:00
Werner Lemberg
71c0ad6520 Whitespace. 2013-08-27 21:30:09 +02:00
Werner Lemberg
5e53db25ff [autofit] While tracing, report script names instead of ID values.
* src/autofit/afglobal.c (af_script_names) [FT_DEBUG_LEVEL_TRACE]:
New array.
* src/autofit/afglobal.h: Updated.

* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_hint_edges): Use `af_script_names'.
* src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_hint_edges): Ditto.
2013-08-27 18:37:39 +02:00