* src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_get,
cff_op_put>: Appendix B of Adobe Technote #5177 limits the number of
elements for the `get' and `put' operators to 32.
* src/cff/cffgload.h (CFF_MAX_TRANS_ELEMENTS): Define.
(CFF_Decoder): Use it for `buildchar' and remove `len_buildchar'.
Problem and solution reported by Ning Dong <flintning@163.com>.
* src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_dup>:
Increase `args' by 2, not 1.
==========================
Tag sources with `VER-2-3-11'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.3.11.
* README, Jamfile (RefDoc), builds/win32/visualc/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualce/index.html,
builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj: s/2.3.10/2.3.11/, s/2310/2311/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 11.
* builds/unix/configure.raw (version_info): Set to 9:22:3.
==========================
Tag sources with `VER-2-3-10'.
* builds/toplevel.mk (major, minor, patch): Fix regexp to allow more
than a single digit.
(dist): We now use git.
* docs/VERSION.DLL: Update documentation and bump version number to
2.3.10.
* README, Jamfile (RefDoc), builds/win32/visualc/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualce/index.html,
builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj: s/2.3.9/2.3.10/, s/239/2310/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 10.
* builds/unix/configure.raw (version_info): Set to 9:21:3.
This was broken since version 2.3.0.
* src/raster/ftraster.c (count_table): Use pre-2.3.0 values (which
were then computed dynamically).
(Vertical_Gray_Sweep_Step): Updated.
(ft_black_render): Initialize `worker->gray_lines' (problem found by
valgrind).
(FT_RASTER_OPTION_ANTI_ALIASING, DEBUG_RASTER): Dont' #undef, just
comment out.
The calculation of `vertBearingX' is not defined in the OTF font
spec so FreeType does a `best effort' attempt. However, this value
is defined in the PDF and PostScript specs, and that algorithm is
better than the one FreeType currently uses:
FreeType: Use the middle of the bounding box as the X coordinate
of the vertical origin.
Adobe PDF spec: Use the middle of the horizontal advance vector as
the X coordinate of the vertical origin.
FreeType's algorithm goes wrong if you have a really small glyph
(like the full-width, circle-like dot at the end of the sentence, as
used in CJK scripts) with large bearings. With the FreeType
algorithm this dot gets centered on the baseline; with the PDF
algorithm it gets the correct location (in the top right). Note
that this is a serious issue, it's like printing the dot at the end
of a Roman sentence at the center of the textline instead of on the
baseline like it should. So i believe the PDF spec's algorithm
should be used in FreeType as well.
The `vertBearingY' value for such small glyphs is also very strange
if no `vmtx' information is present, since the height of the bbox is
not representable for the height of the glyph visually (the
whitespace up to the baseline is part of the glyph). The fix also
includes some code for a better estimate of `vertBearingY'.
* src/base/ftobjs.c (ft_synthesize_vertical_metrics): `vertBearingX'
is now calculated as described by the Adobe PDF Spec. Estimate for
`vertBearingY' now works better for small glyphs completely above or
below the baseline into account.
* src/cff/cffgload.c (cff_slot_load): `vertBearingX' is now
calculated as described by the Adobe PDF Spec. Vertical metrics
information was always ignored when FT_CONFIG_OPTION_OLD_INTERNALS
was not defined.
* src/truetype/ttgload.c (compute_glyph_metrics): `vertBearingX' is
now calculated as described by the Adobe PDF Spec.
* include/freetype/internal/t1types.h (T1_EncodingRecRec_): Update
comment to reflect revised code_last meaning.
* src/type1/t1load.c (T1_Open_Face), src/type42/t42objs.c
(T42_Open_Face): Assign max_char as highest character code + 1 and
use this for T1_EncodingRecRec_::code_last.
* src/psaux/t1cmap.c (t1_cmap_custom_init): Follow revised
T1_EncodingRecRec_::code_last meaning.
Bug reported by Ivan Nincic <inincic@pdftron.com>.
* src/cff/cffgload.c (cff_slot_load): Thinko: Check `xx' element of
`font_matrix' also.
* docs/CHANGES: Updated.
* src/truetype/ttobjs.c (tt_size_init_bytecode): Don't reset x_ppem
and y_ppem. Otherwise the `*_CVT_Stretched' functions in ttinterp.c
get never called.
An anonymous guy suggested this change on Savannah, and it seems to
be the right solution.
This fixes Savannah bug #26867.
Previously, only integers have been used which can lead to serious
rounding errors.
However, fractional values are only used internally; after the
charstrings (of either Type 1 or 2) have been processed, the
resulting coordinates get rounded to integers currently -- before
applying scaling. This should be fixed; at the same time a new load
flag should be introduced, to be used in combination with
FT_LOAD_NO_SCALE, which indicates that font units are returned in
16.16 format. Similarly, the incremental interface should be
extended to allow fractional values for metrics.
* include/freetype/internal/psaux.h (T1_BuilderRec): Remove `shift'
field.
* include/freetype/internal/pshints.h (T1_Hints_SetStemFunc,
T1_Hints_SetStem3Func): Use FT_Fixed for coordinates.
* src/psaux/psobjs.c: Include FT_INTERNAL_CALC_H.
(t1_build_add_point): Always convert fixed to integer.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings):
Use 16.16 format everywhere (except for large integers followed by a
`div').
[CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS]: Remove #ifdef and activate
code uncoditionally.
Add support for random numbers and update remaining code
accordingly; this should work now.
(t1_operator_seac): Updated.
* src/psaux/pshrec.c: Include FT_INTERNAL_CALC_H.
(ps_hints_t1stem3, t1_hints_stem): Updated.
* src/cid/cidgload.c: Include FT_INTERNAL_CALC_H.
(cid_load_glyph) [FT_CONFIG_OPTION_INCREMENTAL],
(cid_face_compute_max_advance, cid_slot_load_glyph): Updated.
* src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String)
[FT_CONFIG_OPTION_INCREMENTAL], (T1_Get_Advances, T1_Load_Glyph):
Updated.
* src/type1/t1load.c: Include FT_INTERNAL_CALC_H.
* src/type1/t1objs.c (T1_Face_Init): Updated.