File Release Notes and Changelog
Release Name: 2.3.5
Notes:
CHANGES BETWEEN 2.3.5 and 2.3.4
I. IMPORTANT BUG FIXES
- Some subglyphs in TrueType fonts were handled incorrectly due to
a missing graphics state reinitialization.
- Large .Z files (as distributed with some X11 packages) weren't
handled correctly, making FreeType increase the heap stack in an
endless loop.
- A large number of bugs have been fixed to avoid crashes and
endless loops with invalid fonts.
II. IMPORTANT CHANGES
- The two new cache functions `FTC_ImageCache_LookupScaler' and
`FTC_SBit_Cache_LookupScaler' have been added to allow lookup of
glyphs using an `FTC_Scaler' object; this makes it possible to
use fractional pixel sizes in the cache. The demo programs have
been updated accordingly to use this feature.
- A new API `FT_Get_CMap_Format' has been added to get the cmap
format of a TrueType font. This is useful in handling PDF
files. The code has been contributed by Derek Clegg.
- The auto-hinter now produces better output by default for
non-Latin scripts like Indic. This was done by using the CJK
hinting module as the default instead of the Latin one. Thanks
to Rahul Bhalerao for this suggestion.
- A new API `FT_Face_CheckTrueTypePatents' has been added to find
out whether a given TrueType font uses patented bytecode
instructions. The `ft2demos' bundle contains a new program
called `ftpatchk' which demonstrates its usage.
- A new API `FT_Face_SetUnpatentedHinting' has been added to
enable or disable the unpatented hinter.
- Support for Windows FON files in PE format has been contributed
by Dmitry Timoshkov.
III. MISCELLANEOUS
- Vincent Richomme contributed Visual C++ project files for Pocket
PCs.
Changes:
2007-07-02 Werner Lemberg <wl@gnu.org>
* Version 2.3.5 released.
=========================
Tag sources with `VER-2-3-5'.
* docs/CHANGES, docs/VERSION.DLL: Update documentation and bump
version number to 2.3.5.
* 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/2.3.4/2.3.5/, s/234/235/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 5.
* builds/unix/configure.raw (version_info): Set to 9:16:3.
2007-07-01 David Turner <david@freetype.org>
* include/freetype/freetype.h, src/base/ftpatent.c
(FT_Face_SetUnpatentedHinting): New function to dynamically change
the setting after a face is created.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix a small bug
that created distortions in the bytecode interpreter results.
2007-06-30 David Turner <david@freetype.org>
* src/truetype/ttinterp.c (Ins_IUP): Add missing variable
initialization.
* src/autofit/aflatin.c (af_latin_metric_init_blues): Get rid of an
infinite loop in the case of degenerate fonts.
2007-06-26 Rahul Bhalerao <b.rahul.pm@gmail.com>
Add autofit module for Indic scripts. This currently just reuses
the CJK-specific functions.
* include/freetype/config/ftoption.h (AF_CONFIG_OPTION_INDIC): New
macro.
* devel/ftoption.h: Synchronize with
include/freetype/config/ftoption.h.
* src/autofit/afindic.c, src/autofit/afindic.h: New files.
* src/autofit/afglobal.c, src/autofit/aftypes.h,
src/autofit/autofit.c: Updated.
* src/autofit/Jamfile (_sources), * src/autofit/rules.mk
(AUTOF_DRV_SRC): Updated.
2007-06-23 David Turner <david@freetype.org>
* src/truetype/ttgload.c (TT_Load_Simple): Fix change from
2007-06-16 that prevented the TrueType module from loading most
glyphs.
2007-06-20 Werner Lemberg <wl@gnu.org>
* src/cff/cffgload.c (cff_slot_load): Fix logic of 2007-05-28
change.
2007-06-19 Werner Lemberg <wl@gnu.org>
* src/type1/t1load.c (parse_encoding): Handle one more error.
2007-06-19 Dmitry Timoshkov <dmitry@codeweavers.com>
* src/winfonts/winfnt.c (fnt_face_get_dll_font): Return error
FNT_Err_Invalid_File_Format if file format was recognized but
the file doesn't contain any FNT(NE) or RT_FONT(PE) resources.
Add verbose debug logs to make it easier to debug failing load
attempts.
(FNT_Face_Init): A single FNT font can't contain more than 1 face,
so return an error if requested face index is > 0.
Do not do further attempt to load fonts if a previous attempt has
failed but returned error FNT_Err_Invalid_File_Format, i.e., the
file format has been recognized but no fonts found in the file.
2007-07-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
* src/base/ftmac.c: Apply patches proposed by Sean McBride.
(FT_GetFile_From_Mac_Name): Insert FT_UNUSED macros to fix
the compiler warnings against unused arguments.
(FT_ATSFontGetFileReference): Ditto.
(FT_GetFile_From_Mac_ATS_Name): Ditto.
(FT_New_Face_From_FSSpec): Ditto.
(lookup_lwfn_by_fond): Fix wrong comment.
Replace `const StringPtr' by more appropriate type
`ConstStr255Param'.
FSRefMakePathPath always returns UTF8 POSIX pathname in
Mach-O, thus HFS pathname support is dropped.
(count_faces): Remove HLock and HUnlock which is not
required on Mac OS X anymore.
(FT_New_Face_From_SFNT): Ditto.
(FT_New_Face_From_FOND): Ditto.
* builds/mac/ftmac.c: Synchronize to src/base/ftmac.c,
except of HFS pathname support and HLock/HUnlock.
They are required on classic CFM environment.
2007-06-18 Werner Lemberg <wl@gnu.org>
* src/psaux/psobjs.c (ps_parser_skip_PS_token): Remove incorrect
assertion.
(ps_parser_to_bytes): Fix error message.
* src/type42/t42objs.c (T42_Open_Face): Handle one more error.
* src/type42/t42parse.c (t42_parse_sfnts): s/alloc/allocated/.
Don't allow mixed binary and hex strings.
Handle string_size == 0 and string_buf == 0.
(t42_parse_encoding): Handle one more error.
2007-06-18 Werner Lemberg <wl@gnu.org>
* src/psaux/psobjs.c (ps_tofixedarray, ps_tocoordarray): Fix exit
logic.
(ps_parser_load_field) <T1_FIELD_TYPE_BBOX>: Skip delimiters
correctly.
(ps_parser_load_field_table): Use `fields->array_max' instead of
T1_MAX_TABLE_ELEMENTS to limit the number of arguments.
* src/cff/cffgload.c (cff_decoder_prepare): Fix change from
2007-06-06.
2007-06-17 Werner Lemberg <wl@gnu.org>
* src/tools/ftrandom.c (font_size): New global variable.
(TestFace): Use it.
(main): Handle new option `--size' to set `font_size'.
(Usage): Updated.
* src/winfonts/winfnt.c (fnt_face_get_dll_font): Exit in case of
invalid font.
(FNT_Load_Glyph): Protect against invalid bitmap width.
2007-06-16 David Turner <david@freetype.org>
* src/smooth/ftgrays.c (gray_find_cell, gray_set_cell, gray_hline):
Prevent integer overflows when rendering very large outlines.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check the
well-formedness of the contours array when loading a glyph.
* src/truetype/ttinterp.c (TT_Load_Context): Initialize `zp0', `zp1',
and `zp2'.
(Ins_IP): Check argument ranges to reject bogus operations properly.
(IUP_WorkerRec): Add `max_points' member.
(_iup_worker_interpolate): Check argument ranges.
(Ins_IUP): Ignore empty outlines.
2007-06-16 Dmitry Timoshkov <dmitry@codeweavers.com>
* src/winfonts/winfnt.h: Add necessary structures for PE resource
parsing.
(WinPE32_HeaderRec): New structure.
(WinPE32_SectionRec): New structure.
(WinPE_RsrcDirRec): New structure.
(WinPE_RsrcDirEntryRec): New structure.
(WinPE_RsrcDataEntryRec): New structure.
(FNT_FontRec): Remove unused `size_shift' field.
* src/winfonts/winfnt.c (fnt_face_get_dll_font): Add support for
loading bitmap .fon files in PE format.
2007-06-15 Dmitry Timoshkov <dmitry@codeweavers.com>
* builds/win32/ftdebug.c: Unify debug level handling with other
platforms.
2007-06-14 Dmitry Timoshkov <dmitry@codeweavers.com>
* builds/win32/ftdebug.c (FT_Message): Send debug output to the
console as well as to the debugger.
2007-06-14 Werner Lemberg <wl@gnu.org>
* src/autofit/aflatin.c (af_latin_uniranges): Expand structure to
cover all ranges which could possibly be handled by the aflatin
module (since the default fallback for unknown ranges is now the
afcjk module). It might be necessary to fine-tune this further by
splitting off modules for Greek, Cyrillic, or other blocks.
2007-06-11 David Turner <david@freetype.org>
* src/autofit/aflatin.c (af_latin_hints_link_segments): Fix
incorrect segment linking computation. This was the root cause of
Savannah bug #19565.
* src/autofit/* [FT_OPTION_AUTOFIT2]: Some very experimental changes
to improve the Latin auto-hinter. Note that the new code is
disabled by default since it is not stabilized yet.
* src/autofit/aflatin2.c, src/autofit/aflatin2.h: New files
(disabled currently).
* src/autofit/afhints.c: Remove dead code.
(af_axis_hints_new_edge): Add argument to handle segment directions.
(af_edge_flags_to_string): New function.
(af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Handle
option flags.
(af_glyph_hints_reload): Add argument to handle inflections.
Simplify.
(af_direction_compute): Fine tuning.
(af_glyph_hints_align_edge_points): Fix logic.
(af_glyph_hints_align_strong_points): Do linear search for small
edge counts.
(af_glyph_hints_align_weak_points): Skip any touched neighbors.
(af_iup_shift): Handle zero `delta'.
* src/autofit/afhints.h: Updated.
(AF_SORT_SEGMENTS): New macro (disabled).
(AF_AxisHintsRec) [AF_SORT_SEGMENTS]: New member `mid_segments'.
* src/autofit/afglobal.c (af_face_globals_get_metrics): Add
argument to pass option flags for handling scripts.
* src/autofit/afglobal.h: Updated.
* src/autofit/afcjk.c: Updated.
* src/autofit/aflatin.c: Updated.
(af_latin_metrics_scale_dim): Don't reduce scale by 2%.
(af_latin_hints_compute_segments) [AF_HINT_METRICS]: Remove dead code.
(af_latin_hints_compute_edges) [AF_HINT_METRICS]: Remove dead code.
Don't set `edge->dir'
(af_latin_hint_edges): Add more logging.
* src/autofit/afloader.c: Updated.
2007-06-11 Werner Lemberg <wl@gnu.org>
* docs/CHANGES: Document FT_Face_CheckTrueTypePatents.
2007-06-10 David Turner <david@freetype.org>
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Slight speed-up to
the TrueType glyph loader.
* include/freetype/config/ftoption.h: Clarify documentation
regarding unpatented hinting.
Add new `FT_Face_CheckTrueTypePatents' API.
* include/freetype/freetype.h (FT_Face_CheckTrueTypePatents): New
declaration.
* include/freetype/internal/services/svttglyf.h,
src/base/ftpatent.c: New files.
* include/freetype/internal/ftserv.h (FT_SERVICE_TRUETYPE_GLYF_H):
New macro.
* src/truetype/ttdriver.c: Include FT_SERVICE_TRUETYPE_GLYF_H and
`ttpload.h'.
(tt_service_truetype_glyf): New service structure.
(tt_services): Register it.
* modules.cfg (BASE_EXTENSIONS), src/base/Jamfile (_sources): Add
`ftpatent.c'.
2007-06-08 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfobjs.c (sfnt_load_face): Undo change from 2007-04-28.
Fonts without a cmap must be handled correctly by FreeType (anything
else would be a bug).
* src/psaux/t1decode.c (t1_decoder_parse_charstrings)
[FT_DEBUG_LEVEL_TRACE]: Improve tracing message.
2007-06-07 Werner Lemberg <wl@gnu.org>
* src/sfnt/ttsbit0.c (tt_sbit_decoder_init,
tt_sbit_decoder_load_image): Protect against integer overflows.
* src/pfr/pfrgload.c (pfr_glyph_load_simple): More bounding checks
for `x_control' and `y_control'.
2007-06-06 Werner Lemberg <wl@gnu.org>
* src/base/ftoutln.c (FT_Outline_Decompose): Check `last'.
* src/pfr/pfrcmap.c (pfr_cmap_init): Convert assertion into normal
FreeType error.
* src/winfonts/winfnt.c (fnt_face_get_dll_font): Do a rough check of
`font_count'.
* src/type1/t1load.c (parse_font_matrix): Check `temp_scale'.
* src/cff/cffgload.c (cff_decoder_prepare): Change return type to
`FT_Error'.
Check `fd_index'.
(cff_slot_load): Updated.
* src/cff/cffgload.h: Updated.
2007-06-05 Werner Lemberg <wl@gnu.org>
* src/pfr/pfrgload.c (pfr_glyph_done): Comment out unused code.
(pfr_glyph_load_simple): Convert assertion into normal FreeType
error.
Check `idx'.
(pfr_glyph_load_compound, pfr_glyph_curve_to, pfr_glyph_line_to):
Convert assertion into normal FreeType error.
* src/pfr/pfrtypes.h (PFR_GlyphRec): Comment out unused code.
* src/winfonts/winfnt.c (FNT_Face_Init): Check `family_size'.
* src/psaux/psobjs.c (ps_tocoordarray, ps_tofixedarray): Return -1
in case of parsing error.
(ps_parser_load_field): Updated.
* src/type1/t1load.c (parse_font_matrix): Updated.
2007-06-04 Werner Lemberg <wl@gnu.org>
* src/cid/cidgload.c (cid_load_glyph): Check `fd_select'.
* src/tools/ftrandom/Makefile: Depend on `libfreetype.a'.
2007-06-03 Werner Lemberg <wl@gnu.org>
* src/tools/ftrandom/*: Add the `ftrandom' test program written by
George Williams (with some modifications).
2007-06-03 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (destroy_charmaps), src/type1/t1objs.c
(T1_Face_Done), src/winfonts/winfnt.c (FNT_Face_Done): Check for
face == NULL. Suggested by Graham Asher.
2007-06-03 Ismail Dönmez <ismail@pardus.org.tr>
* src/base/ftobjs.c (FT_Request_Metrics): Fix compiler warning.
2007-06-02 Werner Lemberg <wl@gnu.org>
* include/freetype/fterrdef.h (FT_Err_Corrupted_Font_Header,
FT_Err_Corrupted_Font_Glyphs): New error codes for BDF files.
* src/bdf/bdflib.c (bdf_load_font): Use them.
* src/bdf/bdflib.c (_bdf_parse_start): Check `FONT' better.
2007-06-01 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (FT_Request_Metrics), src/cache/ftccmap.c
(FTC_CMapCache_Lookup): Remove unused code.
2007-06-01 Sean McBride <sean@rogue-research.com>
* src/truetype/ttinterp.c (Null_Vector, NULL_Vector): Removed,
unused.
2007-06-01 Werner Lemberg <wl@gnu.org>
* src/cid/cidparse.c (cid_parser_new): Don't continue second search
pass for `StartData' if an error has occurred.
Exit properly if no `StartData' has been seen at all.
* builds/unix/ftsystem.c (FT_Stream_Open): Don't use ULONG_MAX but
LONG_MAX to avoid compiler warning. Suggested by Sean McBride.
2007-05-30 Werner Lemberg <wl@gnu.org>
* src/type1/t1load.c (parse_subrs, parse_charstrings): Protect
against too small binary data strings.
* src/bdf/bdflib.c (_bdf_parse_glyphs): Check `STARTCHAR' better.
2007-05-28 David Turner <david@freetype.org>
* src/cff/cffgload.c (cff_slot_load): Do not apply the identity
transformation. This significantly reduces the loading time of CFF
glyphs.
* docs/CHANGES: Updated.
* src/autofit/afglobal.c (AF_SCRIPT_LIST_DEFAULT): Change default
hinting script to CJK, since it works well with more scripts than
latin. Thanks to Rahul Bhalerao <b.rahul.pm@gmail.com> for pointing
this out!
2007-05-25 Werner Lemberg <wl@gnu.org>
* docs/CHANGES: Updated.
2007-05-24 Werner Lemberg <wl@gnu.org>
* src/truetype/ttobjs.h (tt_size_ready_bytecode): Move declaration
into TT_USE_BYTECODE_INTERPRETER preprocessor block.
2007-05-24 Graham Asher <graham.asher@btinternet.com>
* src/truetype/ttobjs.c (tt_size_ready_bytecode)
[!TT_USE_BYTECODE_INTERPRETER]: Removed. Unused.
2007-05-22 David Turner <david@freetype.org>
* src/truetype/ttgload.c (load_truetype_glyph): Fix last change to
avoid crashes in case the bytecode interpreter is not used.
Avoid heap blowup with very large .Z font files. This fixes
Savannah bug #19910.
* src/lzw/ftzopen.h (FT_LzwStateRec): Remove `in_cursor',
`in_limit', `pad', `pad_bits', and `in_buff' members.
Add `buf_tab', `buf_offset', `buf_size', `buf_clear', and
`buf_total' members.
* src/lzw/ftzopen.c (ft_lzwstate_get_code): Rewritten. It now takes
only one argument.
(ft_lzwstate_refill, ft_lzwstate_reset, ft_lzwstate_io): Updated.
2007-05-20 Ismail Dönmez <ismail@pardus.org.tr>
* src/pshinter/pshrec.c (ps_mask_table_set_bits): Add `const'.
(ps_dimension_set_mask_bits): Remove `const'.
2007-05-19 Werner Lemberg <wl@gnu.org>
* src/sfnt/ttmtx.c (tt_face_get_metrics)
[!FT_CONFIG_OPTION_OLD_INTERNALS]: Another type-punning fix.
2007-05-19 Derek Clegg <dclegg@apple.com>
Savannah patch #5929.
* include/freetype/tttables.h, src/base/ftobjcs.c
(FT_Get_CMap_Format): New function.
* include/freetype/internal/services/svttcmap.c (TT_CMapInfo): Add
`format' member.
* src/sfnt/ttcmap.c (tt_cmap{0,2,4,6,8,10,12}_get_info): Set
cmap_info->format.
2007-05-19 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (load_truetype_glyph): Save graphics state
before handling subglyphs so that it can be reinitialized each time.
This fixes Savannah bug #19859.
2007-05-16 Werner Lemberg <wl@gnu.org>
* src/cache/ftccache.c (ftc_node_mru_link, ftc_node_mru_unlink),
src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP), src/cache/ftcglyph.h
(FTC_GCACHE_LOOKUP_CMP), src/pshinter/pshmod.c (ps_hinter_init),
src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_load_hhea,
tt_face_get_metrics): Fix type-punning issues.
2007-05-15 David Turner <david@freetype.org>
* include/freetype/config/ftstdlib.h,
include/freetype/internal/ftobjs.h: As suggested by Graham Asher,
ensure that ft_isalnum, ft_isdigit, etc., use hard-coded values
instead on relying on the locale-dependent functions provided by
<ctypes.h>.
2007-05-15 Graham Asher <graham.asher@btinternet.com>
* src/autofit/afcjk.c (af_cjk_hints_compute_edges): Remove unused
variable.
* src/autofit/afloader.c (af_loader_load_g): Ditto.
* src/base/ftobjs.c (ft_validator_error): Use `ft_jmp_buf'.
(open_face_from_buffer): Initialize `stream'.
(FT_Request_Metrics): Remove unused variable.
Remove redundant `break' statements.
(FT_Get_Track_Kerning): Remove unused variable.
* src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs,
afm_parse_kern_data): Remove redundant
`break' statements.
(afm_parser_parse): Ditto.
Don't use uninitialized variables.
* src/psnames/psmodule.c (VARIANT_BIT): Define as unsigned long.
Use `|' operator instead of `^' to set it.
Update all users.
* src/sfnt/ttcmap.c (tt_face_build_cmaps): Use `ft_jmp_buf'.
* src/sfnt/ttkern.c (tt_face_load_kern): Remove unused variable.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Remove redundant
comparison.
(TT_Process_Simple_Glyph): Use FT_UInt for `n_points' and `i'.
(TT_Load_Glyph): Remove unused variable.
2007-05-13 Derek Clegg <dclegg@apple.com>
* src/base/ftobjs.c (FT_New_Library): Only allocate rendering pool
if FT_RENDER_POOL_SIZE is > 0. From Savannah patch #5928.
2007-05-11 David Turner <david@freetype.org>
* src/cache/ftbasic.c, include/freetype/ftcache.h
(FTC_ImageCache_LookupScaler, FTC_SBit_Cache_LookupScaler): Two new
functions that allow us to look up glyphs using an FTC_Scaler object
to specify the size, making it possible to use fractional pixel
sizes.
* src/truetype/ttobjs.c (tt_size_ready_bytecode): Set
`size->cvt_ready'. Reported by Boris Letocha.
2007-05-09 Graham Asher <graham.asher@btinternet.com>
* src/truetype/ttinterp.c (Ins_IP), src/autofit/aflatin.c
(af_latin_metrics_scale_dim): Fix compiler warnings.
2007-05-06 Werner Lemberg <wl@gnu.org>
* builds/win32/visualce/freetype.sln: Removed, as requested by
Vincent.
2007-05-04 Vincent RICHOMME <richom.v@free.fr>
* builds/win32/visualce/*: Add Visual C++ project files for Pocket
PC targets.
* docs/CHANGES: Document them.
2007-05-04 <harry@kdevelop.org>
* builds/unix/ftsystem.c (FT_Stream_Open): Handle return value 0 of
mmap (which might happen on some RTOS). From Savannah patch #5909.
2007-05-03 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (FT_Set_Char_Size): Simplify code.
* include/freetype/freetype.h (FT_Set_Char_Size): Update
documentation.
2007-04-28 Victor Stinner <victor.stinner@inl.fr>
* src/sfnt/sfobjs.c (sfnt_load_face): Check error code after loading
`cmap'.
2007-04-27 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check for negative
number of points in contours. Problem reported by Victor Stinner
<victor.stinner@haypocalc.com>.
(TT_Process_Simple_Glyph): Synchronize variable types.
2007-04-26 Werner Lemberg <wl@gnu.org>
* src/base/ftglyph.c (FT_Glyph_Copy): Always set second argument to
zero in case of error. This fixes Savannah bug #19689.
2007-04-25 Boris Letocha <b.letocha@cz.gmc.net>
* src/truetype/ttobjs.c: Fix a typo that created a speed regression
in the TrueType bytecode loader.
2007-04-10 Martin Horak <horakm@centrum.cz>
* src/sfnt/sfobjs.c (sfnt_load_face) [FT_CONFIG_OPTION_INCREMENTAL]:
Ignore `hhea' table. This fixes Savannah bug #19261.
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