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c02485cb72
freetype/ChangeLog
Werner Lemberg c02485cb72 [raster] Reduce jitter value. 
This catches a rendering problem with glyph `x' from Tahoma at
10ppem.  It seems that the increase of the precision in the change
from 2009-06-11 makes a larger jitter value unnecessary.

* src/raster/ftraster.c (Set_High_Precision): Implement it.
2011-01-13 21:55:08 +01:00

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2011-01-13 Werner Lemberg <wl@gnu.org>
[raster] Reduce jitter value.
This catches a rendering problem with glyph `x' from Tahoma at
10ppem. It seems that the increase of the precision in the change
from 2009-06-11 makes a larger jitter value unnecessary.
* src/raster/ftraster.c (Set_High_Precision): Implement it.
2011-01-13 Werner Lemberg <wl@gnu.org>
[raster] Handle drop-outs at glyph borders according to Microsoft.
If a drop-out rule would switch on a pixel outside of the glyph's
bounding box, use the right (or top) pixel instead. This is an
undocumented feature, but some fonts like `Helvetica Neue LT Com 65
Medium' heavily rely on it.
Thanks to Greg Hitchcock who explained this behaviour.
* src/raster/ftraster.c (Vertical_Sweep_Drop,
Horizontal_Sweep_Drop): Implement it.
2011-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Fix Savannah bug #31923, patch drafted by Harsha.
When a node comparator changes the cached nodes during the
search of a node matching with queried properties, the
pointers obtained before the function should be updated to
prevent the dereference to freed or reallocated nodes.
To minimize the rescan of the linked list, the update is
executed when the comparator notifies the change of cached
nodes. This change depends previous change:
38b272ffbbdaae276d636aec4ef84af407d16181
* src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Rescan the
top node if the cached nodes are changed.
* src/cache/ftccache.c (FTC_Cache_Lookup): Ditto.
2011-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Notice if a cache query induced the node list change.
Some node comparators (comparing the cache node contents and the
properties specified by the query) can flush the cache node to
prevent the cache inflation. The change may invalidate the pointers
to the node obtained before the node comparison, so it should be
noticed to the caller. The problem caused by the cache node
changing is reported by Harsha, see Savannah bug #31923.
* src/cache/ftccache.h (FTC_Node_CompareFunc): Add new argument
`FT_Bool* list_changed' to indicate the change of the cached nodes
to the caller.
(FTC_CACHE_LOOKUP_CMP): Watch the change of the cached nodes by
`_list_changed'.
(FTC_CACHE_TRYLOOP_END): Take new macro argument `_list_changed'
and update it when `FTC_Manager_FlushN' flushes any nodes.
* src/cache/ftccback.h (ftc_snode_compare): Updated to fit with new
FTC_Node_CompareFunc type.
(ftc_gnode_compare): Ditto.
* src/cache/ftcbasic.c: Include FT_INTERNAL_OBJECTS_H to use
TRUE/FALSE macros.
(ftc_basic_gnode_compare_faceid): New argument `FT_Bool*
list_changed' to indicate the change of the cache nodes (anyway, it
is always FALSE).
* src/cache/ftccmap.c: Include FT_INTERNAL_OBJECTS_H to use
TRUE/FALSE macros.
(ftc_cmap_node_compare): New argument `FT_Bool* list_changed' to
indicate the change of the cache nodes (anyway, it is always FALSE).
(ftc_cmap_node_remove_faceid): Ditto.
* src/cache/ftccache.c (FTC_Cache_NewNode): Pass a NULL pointer to
`FTC_CACHE_TRYLOOP_END', because the result is not needed.
(FTC_Cache_Lookup): Watch the change of the cache nodes by
`list_changed'.
(FTC_Cache_RemoveFaceID): Ditto.
* src/cache/ftcglyph.c: Include FT_INTERNAL_OBJECTS_H to use
TRUE/FALSE macros.
(ftc_gnode_compare): New argument `FT_Bool* list_changed' to
indicate the change of the cache nodes (anyway, it is always FALSE).
(FTC_GNode_Compare): New argument `FT_Bool* list_changed' to be
passed to `ftc_gnode_compare'.
* src/cache/ftcglyph.h (FTC_GNode_Compare): Ditto.
* src/cache/ftcsbits.c (ftc_snode_compare): New argument `FT_Bool*
list_changed' to indicate the change of the cache nodes, anyway. It
is updated by `FTC_CACHE_TRYLOOP'.
(FTC_SNode_Compare): New argument `FT_Bool* list_changed' to be
passed to `ftc_snode_compare'.
* src/cache/ftcsbits.h (FTC_SNode_Compare): Ditto.
2011-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Fit FTC_GNode_Compare() to FTC_Node_CompareFunc.
* src/cache/ftcglyph.h (FTC_GNode_Compare): Add the 3rd
argument `FTC_Cache cache' to fit FTC_Node_CompareFunc
prototype.
* src/cache/ftcglyph.c (FTC_GNode_Compare): Ditto. Anyway,
`cache' is not used by its child ftc_gnode_compare().
2011-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Deduplicate the code to get the top node by a hash.
There are several duplicated code fragments getting the top node
from a cache by a given hash, like:
idx = hash & cache->mask;
if ( idx < cache->p )
idx = hash & ( cache->mask * 2 + 1 );
pnode = cache->buckets + idx;
To remove duplication, a cpp-macro to do same work
`FTC_NODE__TOP_FOR_HASH' is introduced. For non-inlined
configuration, non-ftc_get_top_node_for_hash() is also introduced.
* src/cache/ftccache.h (FTC_NODE__TOP_FOR_HASH): Declare
and implement inlined version.
(FTC_CACHE_LOOKUP_CMP): Use `FTC_NODE__TOP_FOR_HASH'.
* src/cache/ftccache.c (ftc_get_top_node_for_hash): Non-inlined
version.
(ftc_node_hash_unlink): Use `FTC_NODE__TOP_FOR_HASH'.
(ftc_node_hash_link): Ditto.
(FTC_Cache_Lookup): Ditto.
2011-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] inline-specific functions are conditionalized.
* src/cache/ftcglyph.c (FTC_GNode_Compare): Conditionalized for
inlined configuration. This function is a thin wrapper of
`ftc_gnode_compare' for inlined `FTC_CACHE_LOOKUP_CMP' (see
`nodecmp' argument). Under non-inlined configuration,
`ftc_gnode_compare' is invoked by `FTC_Cache_Lookup', via
`FTC_Cache->clazz.node_compare'.
* src/cache/ftcglyph.h (FTC_GNode_Compare): Ditto.
* src/cache/ftcsbits.c (FTC_SNode_Compare): Ditto, for
`ftc_snode_compare'.
* src/cache/ftcsbits.h (FTC_SNode_Compare): Ditto.
2011-01-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Correct a type mismatch under non-inlined config.
* src/cache/ftcglyph.h (FTC_GCACHE_LOOKUP_CMP): `FTC_GCache_Lookup'
takes the node via a pointer `FTC_Node*', differently from cpp-macro
`FTC_CACHE_LOOKUP_CMP'.
2011-01-06 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Update Jamfile to include Bzip2 support.
* Jamfile: Include src/bzip2 to project.
Comments for lzw, gzip, bzip2 are changed to clarify that
they are for compressed PCF fonts, not others.
(e.g. compressed BDF fonts are not supported yet)
2011-01-05 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Update Symbian project files to include Bzip2 support.
Currently, it provides FT_Stream_OpenBzip2() that returns
unimplemented error always, to prevent unresolved symbol
error for the applications designed for Unix systems.
* builds/symbian/bld.inf: Include ftbzip2.h.
* builds/symbian/freetype.mmp: Include ftbzip2.c.
2011-01-05 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Update classic MacOS makefiles to include Bzip2 support.
Currently, it provides FT_Stream_OpenBzip2() that returns
unimplemented error always, to prevent unresolved symbol
error for the applications designed for Unix systems.
* builds/mac/FreeType.m68k_cfm.make.txt: Include ftbzip2.c.o.
* builds/mac/FreeType.m68k_far.make.txt: Ditto.
* builds/mac/FreeType.ppc_carbon.make.txt: Include ftbzip2.c.x.
* builds/mac/FreeType.ppc_classic.make.txt: Ditto.
2011-01-05 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Update Amiga makefiles to include Bzip2 support.
Currently, it provides FT_Stream_OpenBzip2() that returns
unimplemented error always, to prevent unresolved symbol
error for the applications designed for Unix systems.
* builds/amiga/makefile: Include bzip2.ppc.o built from ftbzip2.c.
* builds/amiga/makefile.os4: Include bzip2.o built from ftbzip2.c.
* builds/amiga/smakefile: Ditto.
2011-01-05 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Update pkg-config tools to reflect Bzip2 support.
* builds/unix/freetype-config.in: Include `-lbz2' to
--libs output, if built with Bzip2 support.
* builds/unix/freetype2.in: Ditto.
2011-01-05 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
* builds/unix/configure.raw: Remove `SYSTEM_BZ2LIB' macro.
SYSTEM_ZLIB is used to switch the builtin zlib source
or system zlib source out of FreeType2. But ftbzip2
module has no builtin bzip2 library and always requires
system bzip2 library. Thus SYSTEM_BZ2LIB is always yes,
it is not used.
2011-01-03 Werner Lemberg <wl@gnu.org>
*/rules.mk: Handle `*pic.c' files.
2010-12-31 Werner Lemberg <wl@gnu.org>
* src/cff/cfftypes.h (CFF_MAX_CID_FONTS): Increase to 64.
Problem reported by Tom Bishop <wenlin@wenlin.com>.
2010-12-31 Werner Lemberg <wl@gnu.org>
Improve bzip2 support.
* include/freetype/ftmoderr.h: Add bzip2.
* docs/INSTALL.ANY, docs/CHANGES: Updated.
* src/pcf/README: Updated.
* include/freetype/internal/pcftypes.h: Obsolete, removed.
2010-12-31 Joel Klinghed <the_jk@yahoo.com>
Add bzip2 compression support to handle *.pcf.bz2 files.
* builds/unix/configure.raw: Test for libbz2 library.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_USE_BZIP2): Define.
* include/freetype/config/ftheader.h (FT_BZIP2_H): Define.
* include/freetype/ftbzip2.h: New file.
* src/bzip2/*: New files.
* src/pcf/pcf.h: s/gzip_/comp_/.
* src/pcf/pcfdrvr.c: Include FT_BZIP2_H.
s/gzip_/comp_/.
(PCF_Face_Init): Handle bzip2 compressed files.
* docs/formats.txt, modules.cfg: Updated.
2010-12-25 Harsha <mm.harsha@gmail.com>
Apply Savannah patch #7422.
If we encounter a space in a string then the sbit buffer is NULL,
height and width are 0s. So the check in ftc_snode_compare will
always pass for spaces (comparision with 255). Here the comments
above the condition are proper but the implementation is not. When
we create an snode I think it is the proper way to initialize the
width to 255 and then put a check for being equal to 255 in snode
compare function.
* src/cache/ftcsbits.c (FTC_SNode_New): Initialize sbit widths with
value 255.
(ftc_snode_compare): Fix condition.
2010-12-13 Werner Lemberg <wl@gnu.org>
Fix parameter handling of `FT_Set_Renderer'.
Reported by Kirill Tishin <siege@bk.ru>.
* src/base/ftobjs.c (FT_Set_Renderer): Increment `parameters'.
2010-12-09 Werner Lemberg <wl@gnu.org>
[cff] Allow `hlineto' and `vlineto' without arguments.
We simply ignore such instructions. This is invalid, but it doesn't
harm; and indeed, there exist such subsetted fonts in PDFs.
Reported by Albert Astals Cid <aacid@kde.org>.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
[cff_op_hlineto]: Ignore instruction if there aren't any arguments
on the stack.
2010-11-28 Werner Lemberg <wl@gnu.org>
* Version 2.4.4 released.
=========================
Tag sources with `VER-2-4-4'.
* docs/CHANGES: Updated.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.4
* 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/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/2.4.3/2.4.4/, s/243/244/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
* builds/unix/configure.raw (version_info): Set to 12:2:6.
2010-11-28 Alexei Podtelezhnikov <apodtele@gmail.com>
[ftsmooth]: Minor code simplification.
* src/smooth/ftgrays (gray_render_cubic): Do only one comparison
instead of two.
2010-11-26 Johnson Y. Yan <yinsen_yan@foxitsoftware.com>
[truetype] Better multi-threading support.
* src/truetype/ttinterp.c (TT_Load_Context): Reset glyph zone
references.
2010-11-23 John Tytgat <John.Tytgat@esko.com>
* src/psaux/t1decode.c (t1_decoder_parse_charstring): Expand
start_point, check_points, add_point, add_point1, close_contour
macros.
Remove add_contour macro.
Return error code from t1_builder_start_point and
t1_builder_check_points when there was one (instead of returning 0).
2010-11-22 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Identify the tricky fonts by cvt/fpgm/prep checksums.
Some Latin TrueType fonts are still expected to be unhinted.
Fix Savannah bug #31645.
* src/truetype/ttobjs.c (tt_check_trickyness): Divided to...
(tt_check_trickyness_family): this checking family name, and
(tt_check_trickyness_sfnt_ids): this checking cvt/fpgm/prep.
(tt_get_sfnt_checksum): Function to retrieve the sfnt checksum
for specified subtable even if cleared by lazy PDF generators.
(tt_synth_sfnt_checksum): Function to calculate the checksum.
2010-11-18 Werner Lemberg <wl@gnu.org>
[truetype] Fix `loca' handling for inconsistent number of glyphs.
Reported by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>.
* src/truetype/ttpload.c (tt_face_load_loca): While sanitizing,
handle case where `loca' is the last table in the font.
2010-11-18 Werner Lemberg <wl@gnu.org>
[sfnt] Ignore all errors while loading `OS/2' table.
Suggested by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>.
* src/sfnt/sfobjs.c (sfnt_load_face): Do it.
2010-11-18 Johnson Y. Yan <yinsen_yan@foxitsoftware.com>
[type1] Fix matrix normalization.
* src/type1/t1load.c (parse_font_matrix): Handle sign of scaling
factor.
2010-11-18 Werner Lemberg <wl@gnu.org>
[type1] Improve guard against malformed data.
Based on a patch submitted by Johnson Y. Yan
<yinsen_yan@foxitsoftware.com>
* src/type1/t1load.c (read_binary_data): Check `size'.
2010-11-17 Werner Lemberg <wl@gnu.org>
[sfnt] While tracing, output table checksums also.
* src/sfnt/ttload.c (tt_face_load_font_dir): Do it.
2010-11-04 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[UVS] Fix find_variant_selector_charmap(), Savannah bug #31545.
Since 2010-07-04, find_variant_selector_charmap() returns
the first cmap subtable always under rogue-compatible
configuration, it causes NULL pointer dereference and
make UVS-related functions crashed.
* src/base/ftobjs.c (Fix find_variant_selector_charmap):
Returns UVS cmap correctly.
2010-11-01 Alexei Podtelezhnikov <apodtele@gmail.com>
[ftsmooth] Improve rendering.
* src/smooth/ftsmooth.c (gray_render_conic): Since version 2.4.3,
cubic deviations have been estimated _after_ UPSCALE, whereas
conic ones have been evaluated _before_ UPSCALE, which produces
inferior rendering results. Fix this.
Partially undo change from 2010-10-15 by using ONE_PIXEL/4; this has
been tested with demo images sent to the mailing list. See
http://lists.gnu.org/archive/html/freetype-devel/2010-10/msg00055.html
and later mails in this thread.
2010-10-28 Werner Lemberg <wl@gnu.org>
[ftraster] Minor fixes.
Reported by Tom Bishop <wenlin@wenlin.com>.
* src/raster/ftraster.c (ULong): Remove unused typedef.
(TWorker): Remove unused variable `precision_mask'.
2010-10-28 Werner Lemberg <wl@gnu.org>
[ftraster] Fix rendering.
Problem reported by Tom Bishop <wenlin@wenlin.com>; see
thread starting with
http://lists.gnu.org/archive/html/freetype/2010-10/msg00049.html
* src/raster/ftraster.c (Line_Up): Replace FMulDiv with SMulDiv
since the involved multiplication exceeds 32 bits.
2010-10-25 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Revert a change of `_idx' type in FTC_CACHE_LOOKUP_CMP().
* src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Revert
the type of `_idx' from FT_PtrDist (by previous change)
to original FT_UFast, to match with FT_CacheRec.
2010-10-24 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Change the hash types to FT_PtrDist.
On LLP64 platforms (e.g. Win64), FT_ULong (32-bit)
variables are inappropriate to calculate hash values
from the memory address (64-bit). The hash variables
are extended from FT_ULong to FT_PtrDist and new
hashing macro functions are introduced. The hash
values on 16-bit memory platforms are changed, but
ILP32 and LP64 are not changed. The hash value in
the cache subsystem is not reverted to the memory
address, so using signed type FT_PtrDist is safe.
* src/cache/ftccache.h (_FTC_FACE_ID_HASH): New hash
function to replace FTC_FACE_ID_HASH() for portability.
* src/cache/ftcmanag.h (FTC_SCALER_HASH): Replace
FTC_FACE_ID_HASH() by _FTC_FACE_ID_HASH().
* src/cache/ftccmap.c (FTC_CMAP_HASH): Ditto.
* src/cache/ftccache.h (FTC_NodeRec): The type of the
member `hash' is changed from FT_UInt32 to FT_PtrDist.
* src/cache/ftccache.h (FTC_Cache_Lookup): The type of the
argument `hash' is changed from FT_UInt32 to FT_PtrDist.
(FTC_Cache_NewNode): Ditto.
* src/cache/ftccache.c (ftc_cache_add): Ditto.
(FTC_Cache_Lookup): Ditto. (FTC_Cache_NewNode): Ditto.
* src/cache/ftcglyph.h (FTC_GCache_Lookup): Ditto.
* src/cache/ftcglyph.c (FTC_GCache_Lookup): Ditto.
* src/cache/ftcbasic.c (FTC_ImageCache_Lookup): The type
of the internal variable `hash' is changed to FT_PtrDist
from FT_UInt32. (FTC_ImageCache_LookupScaler): Ditto.
(FTC_SBitCache_Lookup): Ditto.
(FTC_SBitCache_LookupScaler): Ditto.
* src/cache/ftccmap.c (FTC_CMapCache_Lookup): Ditto.
* src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Ditto.
Also the type of the internal variable `_idx' is changed to
FT_PtrDist from FT_UFast for better pointer calculation.
2010-10-24 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cache] Hide internal macros incompatible with LLP64.
FT_POINTER_TO_ULONG(), FTC_FACE_ID_HASH() and
FTC_IMAGE_TYPE_HASH() are enclosed by
FT_CONFIG_OPTION_OLD_INTERNALS and hidden from
normal clients.
For the history of these macros, see the investigation:
http://lists.gnu.org/archive/html/freetype/2010-10/msg00022.html
2010-10-24 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Change the type of FT_MEM_VAL() from FT_ULong to FT_PtrDist.
On LLP64 platforms (e.g. Win64), unsigned long (32-bit)
cannot cover the memory address (64-bit). FT_MEM_VAL() is
used for hashing only and not dereferred, so using signed
type FT_PtrDist is safe.
* src/base/ftdbgmem.c (FT_MEM_VAL): Change the type of the
return value from FT_ULong to FT_PtrDist.
(ft_mem_table_resize): The type of hash is changed to
FT_PtrDist. (ft_mem_table_get_nodep): Ditto.
2010-10-24 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Replace "%lx" for memory address by "%p", LLP64 platforms.
On LLP64 platforms (e.g. Win64), long (32-bit) cannot cover
the memory address (64-bit). Also the casts from the pointer
type to long int should be removed to preserve the address
correctly.
* src/raster/ftraster.c (New_Profile): Replace "%lx" by "%p".
(End_Profile) Ditto.
* src/truetype/ttinterp.c (Init_Context): Ditto.
2010-10-15 Alexei Podtelezhnikov <apodtele@gmail.com>
Fix thinko in spline flattening.
FT_MAX_CURVE_DEVIATION is dependent on the value of ONE_PIXEL.
* src/smooth/ftgrays.c (FT_MAX_CURVE_DEVIATION): Remove it and
replace it everywhere with ONE_PIXEL/8.
2010-10-13 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[raccess] Skip unrequired resource access rules by Darwin VFS.
When a resource fork access rule by Darwin VFS could open the
resource fork but no font is found in it, the rest of rules
by Darwin VFS are skipped. It reduces the warnings of the
deprecated resource fork access method by recent Darwin kernel.
Fix MacPorts ticket #18859:
http://trac.macports.org/ticket/18859
* src/base/ftobjs.c (load_face_in_embedded_rfork):
When FT_Stream_New() returns FT_Err_Cannot_Open_Stream, it
means that the file is possible to be fopen()-ed but zero-sized.
Also there is a case that the resource fork is not zero-sized,
but no supported font exists in it. If a rule by Darwin VFS
falls into such cases, there is no need to try other Darwin VFS
rules anymore. Such cases are marked by vfs_rfork_has_no_font.
If it is TRUE, the Darwin VFS rules are skipped.
2010-10-13 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[raccess] Grouping resource access rules based on Darwin VFS.
MacOS X/Darwin kernel supports a few tricky methods to access
a resource fork via ANSI C or POSIX interface. Current resource
fork accessor tries all possible methods to support all kernels.
But if a method could open a resource fork but no font is found,
there is no need to try other methods older than tested method.
To determine whether the rule index is for Darwin VFS, a local
function ftrfork.c::raccess_rule_by_darwin_vfs() is introduced.
To use this function in ftobjs.c etc but it should be inlined,
it is exposed by ftbase.h.
* src/base/ftrfork.c (FT_RFork_Rule): New enum type to identify
the rules to access the resource fork.
(raccess_guess_rec): New structure to bind the rule function and
rule enum type.
(FT_Raccess_Guess): The list of the rule functions is replaced by
(raccess_guess_table): This. This is exposed to be used by other
intra module functions.
(raccess_rule_by_darwin_vfs): A function to return a boolean
if the rule specified by the rule index is based on Darwin VFS.
2010-10-13 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Prevent to open a FT_Stream for zero-sized file on non-Unix.
builds/unix/ftsystem.c prevents to open an useless stream from
zero-sized file and returns FT_Err_Cannot_Open_Stream, but the
stream drivers for ANSI C, Amiga and VMS return useless streams.
For cross-platform consistency, all stream drivers should act
same.
* src/base/ftsystem.c (FT_Stream_Open): If the size of the opened
file is zero, FT_Err_Cannot_Open_Stream is returned.
* builds/amiga/src/base/ftsystem.c (FT_Stream_Open): Ditto.
* src/vms/ftsystem.c (FT_Stream_Open): Ditto.
2010-10-12 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #31310.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Protect against
invalid `runcnt' values.
2010-10-08 Chris Liddell <chris.liddell@artifex.com>
Fix Savannah bug #31275.
* src/sfnt/ttpost.c: Include FT_INTERNAL_DEBUG_H.
2010-10-06 Werner Lemberg <wl@gnu.org>
[truetype] Improve error handling of `SHZ' bytecode instruction.
Problem reported by Chris Evans <scarybeasts@gmail.com>.
* src/truetype/ttinterp.c (Ins_SHZ): Check `last_point'.
2010-10-05 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #31253.
Patch submitted by an anonymous reporter.
* configure: Use `awk' instead of `sed' to manipulate output of `ls
-id'.
2010-10-03 Werner Lemberg <wl@gnu.org>
* Version 2.4.3 released.
=========================
Tag sources with `VER-2-4-3'.
* docs/CHANGES: Updated.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.3
* 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/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/2.4.2/2.4.3/, s/242/243/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
* builds/unix/configure.raw (version_info): Set to 12:1:6.
2010-10-03 Werner Lemberg <wl@gnu.org>
Avoid `configure' issues with symbolic links.
Based on a patch from Alexander Stohr <Alexander.Stohr@gmx.de>.
* configure: Compare directories using `ls -id'.
Check existence of `reference' subdirectory before creating it.
2010-10-02 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #31088 (sort of).
* src/sfnt/ttload.c (tt_face_load_maxp): Always allocate at least 64
function entries.
2010-10-02 Werner Lemberg <wl@gnu.org>
[smooth] Fix splitting of cubics for negative values.
Reported by Róbert Márki <gsmiko@gmail.com>; see
http://lists.gnu.org/archive/html/freetype/2010-09/msg00019.html.
* src/smooth/ftgrays.c (gray_render_cubic): Fix thinko.
2010-10-01 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Fix Savannah bug #31040.
* src/truetype/ttinterp.c (free_buffer_in_size): Remove.
(TT_RunIns): Updated.
2010-09-20 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[sfnt] Make error message filling NULL names less verbose.
* src/sfnt/ttpost.c (load_format_20): Showing 1 summary message
when we fill `post' names by NULL, instead of per-entry message.
2010-09-20 Graham Asher <graham.asher@btinternet.com>
David Bevan <david.bevan@pb.com>
[smooth] Fix and improve spline flattening.
This fixes the flattening of cubic, S-shaped curves and speeds up
the handling of both the conic and cubic arcs.
See the discussions on the freetype-devel mailing list in late
August and September 2010 for details.
* src/smooth/ftgrays.c (FT_MAX_CURVE_DEVIATION): New macro.
(TWorker): Remove `conic_level' and `cubic_level' elements.
(gray_render_conic): Simplify algorithm.
(gray_render_cubic): New algorithm; details are given in the code
comments.
(gray_convert_glyph): Remove heuristics.
2010-09-19 Werner Lemberg <wl@gnu.org>
Minor fixes.
* src/cff/cffload.c (cff_charset_compute_cids): `charset->sids[i]'
is `FT_UShort'.
(cff_index_access_element): Don't use additions in comparison.
* src/sfnt/ttpost.c (load_format_20): Make `post_limit' of type
`FT_Long'.
Don't use additions in comparison.
Improve tracing messages.
(load_format_25, load_post_names): Make `post_limit' of type
`FT_Long'.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Truncate the element length at the end of the stream.
See Savannah bug #30975.
* src/cff/cffload.c (cff_index_access_element): `off2', the offset
to the next element is truncated at the end of the stream to prevent
invalid I/O. As `off1', the offset to the requested element has
been checked by FT_STREAM_SEEK(), `off2' should be checked
similarly.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Ignore CID > 0xFFFFU.
See Savannah bug #30975.
* src/cff/cffload.c (cff_charset_compute_cids): Ignore CID if
greater than 0xFFFFU. CFF font spec does not mention maximum CID in
the font, but PostScript and PDF spec define that maximum CID is
0xFFFFU.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Make trace message in cff_charset_load() verbose.
See Savannah bug #30975.
* src/cff/cffload.c (cff_charset_load): Report the original `nleft'
and truncated `nleft'.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Correct `max_cid' from CID array length to max CID.
See Savannah bug #30975.
* src/cff/cffload.c (cff_charset_compute_cids): Don't increment
max_cid after detecting max CID. The array CFF_Charset->cids is
allocated by max_cid + 1.
(cff_charset_cid_to_gindex): Permit CID is less than or equal to
CFF_Charset->max_cid.
* src/cff/cffobjs.c (cff_face_init): FT_Face->num_glyphs is
calculated as CFF_Charset->max_cid + 1.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Sanitize the broken offsets in `loca'.
See Savannah bug #31040.
* src/truetype/ttpload.c (tt_face_get_location): If `pos1', the
offset to the requested entry in `glyf' exceeds the end of the
table, return offset=0, length=0. If `pos2', the offset to the next
entry in `glyf' exceeds the end of the table, truncate the entry
length at the end of `glyf' table.
2010-09-19 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[sfnt] Prevent overrunning in `post' table parser.
See Savannah bug #31040.
* src/sfnt/ttpost.c (load_post_names): Get the length of `post'
table and pass the limit of `post' table to load_format_20() and
load_format_25().
(load_format_20): Stop the parsing when we reached at the limit of
`post' table. If more glyph names are required, they are filled by
NULL names.
2010-09-17 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Don't duplicate size->twilight structure to be freed.
See Savannah bug #31040 for detail.
* src/truetype/ttinterp.c (free_buffer_in_size): Don't duplicate
FT_GlyphZoneRec size->twilight to be freed. If duplicated,
FT_FREE() erases the duplicated pointers only and leave original
pointers. They can cause the double-free crash when the burst
errors occur in TrueType interpreter and free_buffer_in_size() is
invoked repeatedly.
2010-09-15 Werner Lemberg <wl@gnu.org>
Make bytecode debugging with FontForge work again.
* src/truetype/ttinterp.c (TT_RunIns): Don't call
`free_buffer_in_size' in case of error if a debugger is active.
2010-09-14 Werner Lemberg <wl@gnu.org>
Improve tracing messages.
* src/truetype/ttinterp.c (TT_RunIns): Improve wording of tracing
message.
* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Add
tracing message.
* src/truetype/ttgload.c (tt_loader_init): Add tracing message.
* src/cache/ftcsbits.c (ftc_snode_load): Emit tracing message if
glyph doesn't fit into a small bitmap container.
2010-09-13 Werner Lemberg <wl@gnu.org>
Fix minor issues reported by <muktha.narayan@wipro.com>.
* src/autofit/aflatin.c (af_latin_compute_stem_width): Remove
redundant conditional check.
* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Ditto.
* src/cff/cffload.c (cff_encoding_load): Remove conditional check
which always evaluates to `true'.
* src/pshinter/pshalgo.c (ps_glyph_interpolate_strong_points):
Ditto.
* src/truetype/ttinterp.c (Ins_IUP): Ditto.
* src/cid/cidgload.c (cid_slot_load_glyph): Don't check for NULL if
value is already dereferenced.
* src/winfonts/winfnt.c (FNT_Load_Glyph): Fix check of `face'.
2010-08-31 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Ignore the environmental setting of LIBTOOL.
Patch is suggested by Adrian Bunk, to prevent unexpected
reflection of environmental LIBTOOL. See:
http://savannah.nongnu.org/patch/?7290
* builds/unix/unix-cc.in: LIBTOOL is unconditionally set to
$(FT_LIBTOOL_DIR)/libtool. FT_LIBTOOL_DIR is set to $(BUILD_DIR)
by default.
* configure: When configured for the building out of source tee,
FT_LIBTOOL_DIR is set to $(OBJ_DIR).
2010-08-31 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Decrease the trace level catching the interpreter error.
* src/truetype/ttinterp.c (TT_RunIns): Decrease the trace level
showing the error when the interpreter returns with an error,
from FT_TRACE7() to FT_TRACE1().
2010-08-30 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[truetype] Prevent bytecode reuse after the interpretation error.
* src/truetype/ttinterp.c (free_buffer_in_size): New function to
free the buffer allocated during the interpretation of this glyph.
(TT_RunIns): Unset FT_Face->size->{cvt_ready,bytecode_ready} if
an error occurs in the bytecode interpretation. The interpretation
of invalid bytecode may break the function definitions and referring
them in later interpretation is danger. By unsetting these flags,
`fpgm' and `prep' tables are executed again in next interpretation.
This fixes Savannah bug #30798, reported by Robert Święcki.
2010-08-29 Werner Lemberg <wl@gnu.org>
[ftraster] Pacify compiler.
* src/raster/ftraster.c (ft_black_new) [_STANDALONE_]: `memory' is
not used.
2010-08-29 Werner Lemberg <wl@gnu.org>
[cff] Allow SIDs >= 65000.
* src/cff/cffload.c (cff_charset_load): Fix change from 2009-03-20:
The threshold for SIDs is not applicable here. I misinterpreted the
`SID values 65000 and above are available for implementation use'
sentence in the CFF specification.
Problem reported by Ivan Ninčić <inincic@pdftron.com>.
2010-08-28 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Force hinting when the font lacks its familyname.
In Type42 or Type11 font embedded in PostScript & PDF, TrueType sfnt
stream may lack `name' table because they are not required. Hinting
for nameless fonts is safer for PDFs including embedded Chinese
fonts. Written by David Bevan, see:
http://lists.gnu.org/archive/html/freetype-devel/2010-08/msg00021.html
http://lists.freedesktop.org/archives/poppler/2010-August/006310.html
* src/truetype/ttobjs.c (tt_check_trickyness): If a NULL pointer by
nameless font is given, TRUE is returned to enable hinting.
2010-08-28 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Register yet another tricky TrueType font.
* src/truetype/ttobjs.c (tt_check_trickyness): Add `HuaTianKaiTi?',
a Kaishu typeface paired with `HuaTianSongTi?' by Huatian
Information Industry.
2010-08-17 Teijo Kinnunen <Teijo.Kinnunen@nuance.com>
Fix Savannah bug #30788.
* src/cache/ftccache.c (FTC_Cache_Clear): Check `cache->buckets' for
NULL too.
2010-08-10 Werner Lemberg <wl@gnu.org>
Try to fix Savannah bug #30717 (and probably #30719 too).
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Add another
overflow test for `width' and `height'.
2010-08-06 Werner Lemberg <wl@gnu.org>
* Version 2.4.2 released.
=========================
Tag sources with `VER-2-4-2'.
* docs/CHANGES: Updated.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.2
* 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/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/2.4.1/2.4.2/, s/241/242/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
* builds/unix/configure.raw (version_info): Set to 12:0:6.
2010-08-06 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Fix Savannah bug #30648.
* src/base/ftobjs.c (FT_Done_Library): Specify the order of font
drivers during the face closing process. Type42 faces should be
closed before TrueType faces, because a Type42 face refers to
another internal TrueType face which is created from sfnt[] array on
the memory.
2010-08-06 Yuriy Kaminskiy <yumkam@mail.ru>
[raster] Fix valgrind warning.
* src/raster/ftraster.c (Decompose_Curve) <default>: Access point[0]
only if we don't hit `limit'.
2010-08-06 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Fix Savannah bug #30658.
* src/base/ftobjs.c (Mac_Read_POST_Resource): Check that the total
length of collected POST segments does not overrun the allocated
buffer.
2010-08-06 Yuriy Kaminskiy <yumkam@mail.ru>
Fix conditional usage of FT_MulFix_i386.
With -ansi flag, gcc does not define `i386', only `__i386__'.
* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in:
s/i386/__i386__/.
2010-08-05 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30657.
* src/truetype/ttinterp.c (BOUNDSL): New macro.
Change `BOUNDS' to `BOUNDSL' where appropriate.
* src/truetype/ttinterp.h (TT_ExecContextRec): Fix type of
`cvtSize'.
2010-08-05 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30656.
* src/type42/t42parse.c (t42_parse_sfnts): Protect against negative
string_size.
Fix comparison.
2010-08-05 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Don't use any values in decoder after parsing error.
* src/cff/cffgload.c (cff_slot_load): Skip the evaluations
of the values in decoder, if cff_decoder_parse_charstrings()
returns any error.
2010-08-04 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30644.
* src/base/ftstream.c (FT_Stream_EnterFrame): Fix comparison.
2010-08-04 Werner Lemberg <wl@gnu.org>
`make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set.
* devel/ftoption.h: Synchronize with
include/freetype/config/ftoption.h.
2010-08-04 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
[cff] Improve stack overflow test.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Check stack
after execution of operations too.
2010-07-18 Werner Lemberg <wl@gnu.org>
Add reference counters and to FT_Library and FT_Face objects.
* include/freetype/freetype.h (FT_Reference_Face): New function.
* include/freetype/ftmodapi.h (FT_Rererence_Library): New function.
* include/freetype/internal/ftobjs.h (FT_Face_InternalRec,
FT_LibraryRec): New field `refcount'.
* src/base/ftobjs.c (FT_Open_Face, FT_New_Library): Handle
`refcount'.
(FT_Reference_Face, FT_Reference_Library): Implement new functions.
(FT_Done_Face, FT_Done_Library): Handle `refcount'.
* docs/CHANGES: Updated.
2010-07-18 Werner Lemberg <wl@gnu.org>
* Version 2.4.1 released.
=========================
Tag sources with `VER-2-4-1'.
* docs/CHANGES: Updated.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.1.
* 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/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/2.4.0/2.4.1/, s/240/241/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
* builds/unix/configure.raw (version_info): Set to 11:1:5.
2010-07-17 Werner Lemberg <wl@gnu.org>
[cff] Final try to fix `hintmask' and `cntrmask' limit check.
Problem reported by Tobias Wolf <towolf@gmail.com>.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_hintmask>: Sigh. I'm apparently too silly to fix this
correctly in less than three tries.
2010-07-12 Werner Lemberg <wl@gnu.org>
* Version 2.4.0 released.
=========================
Tag sources with `VER-2-4-0'.
* docs/CHANGES: Updated.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.0.
* 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/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/2.3.12/2.4.0/, s/2312/240/.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 4.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.raw (version_info): Set to 11:0:5.
2010-07-12 Werner Lemberg <wl@gnu.org>
Remove C++ warnings.
*/*: Initialize pointers where necessary to make g++ happy.
2010-07-12 malc <av1474@comtv.ru>
Richard Henderson <rth@redhat.com>
Fix type-punning issues with C++.
* include/freetype/internal/ftmemory.h (FT_ASSIGNP) [__cplusplus]:
Emulate a `typeof' operator with an inline template which uses
`static_cast'.
2010-07-11 Werner Lemberg <wl@gnu.org>
Fix C++ compilation issue.
* src/tools/apinames.c (names_dump) <OUTPUT_WATCOM_LBC>: Fix
type of `dot' variable.
2010-07-10 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Fix another case reported in Savannah bug #30373.
Permit a face for Type1, Type42 and CFF without charmap,
patch by Tor Andersson.
* src/type1/t1objs.c (T1_Face_Init): Reset the error if it
is FT_Err_No_Unicode_Glyph_Name.
* src/type42/t42objs.c (T42_Face_Init): Ditto.
* src/cff/cffobjs.c (cff_face_init): Ditto.
2010-07-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Use defined macros to set {platform,encoding}_id.
* src/bdf/bdfdrivr.c: Include ttnameid.h and use macros to
set charmap.{platfom,encoding}_id.
* src/pcf/pcfdrivr.c: Ditto.
* src/winfonts/winfnt.c: Ditto.
* src/type1/t1objs.c: Ditto.
* src/type42/t42objs.c: Ditto.
* src/cff/cffobjs.c: Ditto.
* src/pfr/pfrobjs.c: Ditto.
2010-07-09 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Fix Savannah bug #30373.
Too serious check of errors by `FT_CMap_New' since 2010-07-04
is fixed. Reported by Tor Andersson.
* include/freetype/fterrdef.h
(PSnames_Err_No_Unicode_Glyph_Name): New error code to
indicate the Unicode charmap synthesis failed because
no Unicode glyph name is found.
* src/psnames/psmodule.c (ps_unicodes_init): Return
PSnames_Err_No_Unicode_Glyph_Name when no Unicode glyph name
is found in the font.
* src/cff/cffcmap.c (cff_cmap_unicode_init): Return
CFF_Err_No_Unicode_Glyph_Name when no SID is available.
* src/type1/t1objs.c (T1_Face_Init): Proceed if `FT_CMap_New'
is failed by the lack of Unicode glyph name.
* src/type42/t42objs.c (T42_Face_Init): Ditto.
* src/cff/cffobjs.c (cff_face_init): Ditto.
2010-07-09 Ken Sharp <ken.sharp@artifex.com>
Make ftraster.c compile in stand-alone mode with MSVC compiler.
* src/raster/ftmisc.h (FT_Int64) [_WIN32, _WIN64]: Fix typedef
since there is no `inttypes.h' for MSVC.
2010-07-08 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30361.
* src/truetype/ttinterp.c (Ins_IUP): Fix bounds check.
2010-07-06 Werner Lemberg <wl@gnu.org>
Pacify compiler.
* src/cff/cffload.c (cff_index_get_pointers): Initialize
`new_bytes'.
2010-07-05 Eugene A. Shatokhin <spectre@ispras.ru>
Fix Savannah bug #27648.
* src/base/ftobjs.c (ft_remove_renderer, FT_Add_Module): Call
`raster_done' only if we have an outline glyph format.
2010-07-05 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30030.
* builds/win32/*/freetype.vcproj: Add ftxf86.c.
2010-07-05 Werner Lemberg <wl@gnu.org>
[cff] Next try to fix `hintmask' and `cntrmask' limit check.
Problem reported by malc <av1474@comtv.ru>.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_hintmask>: It is possible that there is just a single byte
after the `hintmask' or `cntrmask', e.g., a `return' instruction.
2010-07-04 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Restrict the number of the charmaps in a rogue-compatible mode.
Fix for Savannah bug #30059.
* src/cache/ftccmap.c (FTC_CMapCache_Lookup): Replace `16' the
minimum character code passed by a legacy rogue client by...
* include/freetype/config/ftoption.h (FT_MAX_CHARMAP_CACHEABLE):
This. It is undefined when FT_CONFIG_OPTION_OLD_INTERNALS is
undefined (thus the rogue client compatibility is not required).
* src/cff/cffobjs.c (cff_face_init): Abort the automatic
selection or synthesis of Unicode cmap subtable when the charmap
index exceeds FT_MAX_CHARMAP_CACHEABLE.
* src/sfnt/ttcmap.c (tt_face_build_cmaps): Issue error message
when the charmap index exceeds FT_MAX_CHARMAP_CACHEABLE.
* src/base/ftobjs.c (find_unicode_charmap): When Unicode charmap
is found after FT_MAX_CHARMAP_CACHEABLE, ignore it and search
earlier one.
(find_variant_selector_charmap): When UVS charmap is found after
FT_MAX_CHARMAP_CACHEABLE, ignore it and search earlier one.
(FT_Select_Charmap): When a charmap matching with requested
encoding but after FT_MAX_CHARMAP_CACHEABLE, ignore and search
earlier one.
(FT_Set_Charmap): When a charmap matching with requested
charmap but after FT_MAX_CHARMAP_CACHEABLE, ignore and search
earlier one.
(FT_Get_Charmap_Index): When a requested charmap is found
after FT_MAX_CHARMAP_CACHEABLE, return the inverted charmap
index.
2010-07-04 Werner Lemberg <wl@gnu.org>
TrueType hinting is no longer patented.
* include/freetype/config/ftoption.h, devel/ftoption.h
(TT_CONFIG_OPTION_BYTECODE_INTERPRETER): Define.
(TT_CONFIG_OPTION_UNPATENTED_HINTING): Undefine.
* docs/CHANGES, docs/INSTALL, include/freetype/freetype.h: Updated.
* docs/TRUETYPE, docs/PATENTS: Removed.
2010-07-04 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Check error value by `FT_CMap_New'.
* src/cff/cffobjs.c (cff_face_init): Check error value by
`FT_CMap_New'.
* src/pfr/pfrobjs.c (pfr_face_init): Ditto.
* src/type1/t1jobjs.c (T1_Face_Init): Ditto.
* src/type42/t42jobjs.c (T42_Face_Init): Ditto.
2010-07-03 Werner Lemberg <wl@gnu.org>
Make ftgrays.c compile stand-alone again.
* src/smooth/ftgrays.c [_STANDALONE_]: Include `stddef.h'.
(FT_INT_MAX, FT_PtrDist)[_STANDALONE_]: Define.
2010-07-02 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Additional fix for Savannah bug #30306.
* src/base/ftobjs.c (Mac_Read_POST_Resource): If the type of the
POST fragment is 0, the segment is completely ignored. The declared
length of the segment is not cared at all. According to Adobe
Technical Note 5040, type 0 segment is a comment only and should not
be loaded for the interpreter. Reported by Robert Święcki.
2010-07-01 Werner Lemberg <wl@gnu.org>
[truetype] Protect against code range underflow.
* src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF): Don't allow
negative IP values.
2010-07-01 Werner Lemberg <wl@gnu.org>
[truetype] Add rudimentary tracing for bytecode instructions.
* src/truetype/ttinterp.c (opcode_name) [FT_DEBUG_LEVEL_TRACE]: New
array.
(TT_RunIns): Trace opcodes.
2010-06-30 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30263.
* src/smooth/ftgrays.c (gray_render_span): Use cast to `unsigned
int' to avoid integer overflow.
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Use smaller
threshold values for `width' and `height'. This is not directly
related to the bug fix but makes sense anyway.
2010-07-01 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Initial fix for Savannah bug #30306.
* src/base/ftobjs.c (Mac_Read_POST_Resource): Check `rlen', the
length of fragment declared in the POST fragment header, and prevent
an underflow in length calculation. Some fonts set the length to
zero in spite of the existence of a following 16bit `type'.
Reported by Robert Święcki.
2010-07-01 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Additional fix for Savannah bug #30248 and #30249.
* src/base/ftobjs.c (Mac_Read_POST_Resource): Check the buffer size
during gathering PFB fragments embedded in LaserWriter PS font for
Macintosh. Reported by Robert Święcki.
2010-06-30 Alexei Podtelezhnikov <apodtele@gmail.com>
Minor optimizations by avoiding divisions.
* src/sfnt/ttkern.c (tt_face_load_kern, tt_face_get_kerning):
Replace divisions with multiplication in comparisons.
2010-06-29 Werner Lemberg <wl@gnu.org>
Fix minor tracing issues.
* src/cff/cffgload.c, src/truetype/ttgload.c: Adjust tracing levels.
2010-06-27 Werner Lemberg <wl@gnu.org>
[cff] Really fix `hintmask' and `cntrmask' limit check.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_hintmask>: Fix thinko and handle tracing also.
2010-06-27 Werner Lemberg <wl@gnu.org>
Fix valgrind warning.
* src/base/ftoutln.c (FT_Outline_Get_Orientation): Initialize
`result' array.
2010-06-27 Werner Lemberg <wl@gnu.org>
[cff] Fix memory leak.
* src/cff/cffgload.c (cff_operator_seac): Free charstrings even in
case of errors.
2010-06-27 Werner Lemberg <wl@gnu.org>
[cff] Protect against invalid `hintmask' and `cntrmask' operators.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_hintmask>: Ensure that we don't exceed `limit' while parsing
the bit masks of the `hintmask' and `cntrmask' operators.
2010-06-26 Werner Lemberg <wl@gnu.org>
Fix PFR change 2010-06-24.
* src/pfr/pfrgload.c (pfr_glyph_load_simple): Really protect against
invalid indices.
2010-06-26 Werner Lemberg <wl@gnu.org>
Improve PFR tracing messages.
* src/pfr/pfrgload.c (pfr_glyph_load_rec): Emit tracing messages for
simple and compound glyph offsets.
2010-06-26 Werner Lemberg <wl@gnu.org>
Fix last PFR change.
* src/pfr/pfrobjs.c (pfr_face_init): Fix rejection logic.
2010-06-26 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30262.
* src/sfnt/ttload.c (tt_face_load_maxp): Limit `maxComponentDepth'
arbitrarily to 100 to avoid stack exhaustion.
2010-06-26 Werner Lemberg <wl@gnu.org>
Add some memory checks (mainly for debugging).
* src/base/ftstream.c (FT_Stream_EnterFrame): Exit with error
if the frame size is larger than the stream size.
* src/base/ftsystem.c (ft_ansi_stream_io): Exit with error if
seeking a position larger than the stream size.
2010-06-25 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30261.
* src/pfr/pfrobjs.c (pfr_face_init): Reject fonts which contain
neither outline nor bitmap glyphs.
2010-06-25 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30254.
* src/cff/cffload.c (cff_index_get_pointers): Do sanity check for
first offset also.
2010-06-25 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Initial fix for Savannah bug #30248 and #30249.
* src/base/ftobjs.c (Mac_Read_POST_Resource): Check the error during
reading a PFB fragment embedded in LaserWriter PS font for Macintosh.
Reported by Robert Święcki.
2010-06-24 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30247.
* src/pcf/pcfread.c (pcf_get_metrics): Disallow (invalid) fonts with
zero metrics.
2010-06-24 Graham Asher <graham.asher@btinternet.com>
* src/smooth/ftgrays.c (gray_render_cubic): Fix algorithm.
The previous version was too aggressive, as demonstrated in
http://lists.gnu.org/archive/html/freetype-devel/2010-06/msg00020.html.
2010-06-24 Werner Lemberg <wl@gnu.org>
*/*: Use module specific error names where appropriate.
2010-06-24 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30236.
* src/sfnt/ttcmap.c (tt_face_build_cmaps): Improve check for pointer
to `cmap_table'.
2010-06-24 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30235.
* src/pfr/pfrgload.c (pfr_glyph_load_simple): Protect against
invalid indices if there aren't any coordinates for indexing.
2010-06-24 Werner Lemberg <wl@gnu.org>
[bdf]: Font properties are optional.
* src/bdf/bdflib.c (_bdf_readstream): Use special error code to
indicate a redo operation.
(_bdf_parse_start): Handle `CHARS' keyword here too and pass current
input line to `_bdf_parse_glyph'.
2010-06-23 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30220.
* include/freetype/fterrdef.h
(BDF_Err_Missing_Fontboundingbox_Field): New error code.
* src/bdf/bdflib.c (_bdf_parse_start): Check for missing
`FONTBOUNDINGBOX' field.
Avoid memory leak if there are multiple `FONT' lines (which is
invalid but doesn't hurt).
2010-06-21 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30168.
* src/pfr/pfrgload.c (pfr_glyph_load_compound): Limit the number of
subglyphs to avoid endless recursion.
2010-06-20 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30145.
* src/psaux/psobjs.c (t1_builder_add_contour): Protect against
`outline == NULL' which might happen in invalid fonts.
2010-06-19 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30135.
* src/bdf/bdflib.c (_bdf_list_join): Don't modify value in static
string `empty'.
(_bdf_parse_glyph): Avoid memory leak in case of error.
2010-06-15 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30108.
* src/autofit/afglobal.c (af_face_globals_compute_script_coverage):
Properly mask AF_DIGIT bit in comparison.
2010-06-11 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30106.
Point numbers for FreeType's implementation of hinting masks are
collected before the final number of points of a glyph has been
determined; in particular, the code for handling the `endchar'
opcode can reduce the number of points.
* src/pshinter/pshalgo.c (psh_glyph_find_strong_points): Assure that
`end_point' is not larger than `glyph->num_points'.
2010-06-11 Werner Lemberg <wl@gnu.org>
[cff]: Improve debugging output.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_hintmask>: Implement it.
2010-06-10 Graham Asher <graham.asher@btinternet.com>
ftgrays: Speed up rendering of small cubic splines.
* src/smooth/ftgrays.c (gray_render_cubic): Implement new,
simplified algorithm to find out whether the spline can be replaced
with two straight lines. See this thread for more:
http://lists.gnu.org/archive/html/freetype-devel/2010-06/msg00000.html
2010-06-09 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30082.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_callothersubr>: Protect against stack underflow.
2010-06-08 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30053.
* src/cff/cffparse.c (cff_parse_real): Handle border case where
`fraction_length' has value 10.
2010-06-07 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30052.
This bug has been introduced with commit 2415cbf3.
* src/base/ftobjs.c (FT_Get_First_Char, FT_Get_Next_Char): Protect
against endless loop in case of corrupted font header data.
2010-05-26 Werner Lemberg <wl@gnu.org>
Remove unused variable.
Found by Graham.
* src/autofit/afhints.c (af_glyph_hints_reload): Remove unused
variable `first' in first block.
2010-05-22 Werner Lemberg <wl@gnu.org>
Fix various memory problems found by linuxtesting.org.
* src/base/ftgxval.c (FT_TrueTypeGX_Free, FT_ClassicKern_Free),
src/base/ftotval.c (FT_OpenType_Free), src/base/ftpfr.c
(ft_pfr_check): Check `face'.
* src/base/ftobjs.c (FT_Get_Charmap_Index): Check `charmap' and
`charmap->face'.
(FT_Render_Glyph): Check `slot->face'.
(FT_Get_SubGlyph_Info): Check `glyph->subglyphs'.
2010-05-22 Werner Lemberg <wl@gnu.org>
autofit: Remove dead code.
Suggested by Graham.
* src/autofit/afhints.c (af_glyph_hints_compute_inflections):
Removed.
(af_glyph_hints_reload): Remove third argument.
Update all callers.
2010-05-21 Bram Tassyns <bramt@enfocus.be>
Fix Savannah bug #27987.
* src/cff/cffobjs.c (remove_subset_prefix): New function.
(cff_face_init): Use it to adjust `cffface->family_name'.
2010-05-20 Werner Lemberg <wl@gnu.org>
TrueType: Make FreeType ignore maxSizeOfInstructions in `maxp'.
Acroread does the same.
* src/truetype/ttgload.c (TT_Process_Composite_Glyph): Call
`Update_Max' to adjust size of instructions array if necessary and
add a rough safety check.
(load_truetype_glyph): Save `loader->byte_len' before recursive
call.
* src/truetype/ttinterp.h, src/truetype/ttinterp.c (Update_Max):
Declare it as FT_LOCAL.
2010-05-18 Hongbo Ni <hongbo@njstar.com>
Apply Savannah patch #7196.
* src/cff/cffgload.c (cff_slot_load): Prevent crash if CFF subfont
index is out of range.
2010-05-11 Werner Lemberg <wl@gnu.org>
* docs/formats.txt: Give pointer to PCF documentation.
Information provided by Alan Coopersmith
<alan.coopersmith@oracle.com>.
2010-05-10 Ken Sharp <ken.sharp@artifex.com>
Fix Savannah bug #29846.
Previously we discovered fonts which used `setcurrentpoint' to set
the initial point of a contour to 0,0. This caused FreeType to
raise an error, because the `setcurrentpoint' operator is only
supposed to be used with the results from an OtherSubr subroutine.
This was fixed by simply ignoring the error and carrying on.
Now we have found a font which uses setcurrentpoint to actually
establish a non-zero point for a contour during the course of a
glyph program. FWIW, these files may be produced by an application
called `Intaglio' on the Mac, when converting TrueType fonts to
Type 1.
The fix allows the new invalid behaviour, the old invalid behaviour
and real proper usage of the operator to work the same way as Adobe
interpreters apparently do.
(t1_decoder_parse_charstrings): Make `setcurrentpoint' use the top
two elements of the stack to establish unconditionally the current x
and y coordinates.
Make the `flex' subroutine handling (OtherSubr 0) put the current
x,y coordinates onto the stack, instead of two dummy uninitialised
values.
2010-04-14 Ken Sharp <ken.sharp@artifex.com>
Fix Savannah bug #29444.
* src/psaux/psobjs.c (t1_builder_start_point): Accept (invalid)
`lineto' immediately after `hsbw', in accordance with Acrobat, GS,
and others.
2010-04-14 Michał Cichoń <thedmd@artifexmundi.com>
Fix Savannah bug #27999.
* src/cache/ftcmanag.c (FTC_Manager_RemoveFaceID): Only remove
selected entry, not all.
2010-04-06 Jonathan Kew <jfkthame@gmail.com>
Add overflow check to `fvar' table.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis and instance
count.
2010-04-05 Ken Sharp <ken.sharp@artifex.com>
Fix Savannah bug #29335.
* src/raster/ftraster.c (Line_Up): Use slow multiplication to
prevent overflow. This shouldn't have any serious impact on speed,
however.
2010-04-05 Werner Lemberg <wl@gnu.org>
Add new function `FT_Library_SetLcdFilterWeights'.
This is based on code written by Lifter
<http://unixforum.org/index.php?showuser=11691>. It fixes
FreeDesktop bug #27386.
* src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): New
function.
* include/freetype/ftlcdfil.h: Updated.
* docs/CHANGES: Updated.
2010-04-01 John Tytgat <John.Tytgat@esko.com>
Fix Savannah bug #29404.
* src/truetype/ttgload.c: Revert change 2752bd1a (check on bit 1
of `head' table of TrueType fonts).
2010-03-14 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Fix `multi build' for Tytgat's CFF driver improvement.
* src/base/cffload.h (cff_index_get_name): Added.
2010-03-12 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Remove duplicated inclusion of `FT_OUTLINE_H' in ftobjs.c.
* src/base/ftobjs.c: Remove 2nd inclusion of `FT_OUTLINE_H'.
2010-03-11 Chris Liddell <chris.liddell@artifex.com>
Fix Savannah bug #27442.
* src/raster/ftraster.c (ft_black_reset): Fix `buffer_size'.
2010-03-09 Werner Lemberg <wl@gnu.org>
Remove unused variable.
Reported by Graham.
* src/cff/cffparse.c (cff_parse_real): Remove `rest'.
2010-03-02 John Tytgat <John.Tytgat@esko.com>
Improve CFF string (especially glyphname) lookup performance.
We do this by avoiding memory allocation and file I/O. This is
Savannah patch #7104.
* src/cff/cfftypes.h: Include PS cmaps service and
FT_INTERNAL_POSTSCRIPT_HINTS_H.
(CFF_SubFontRec): Remove `num_local_subrs'.
(CFF_FontRec): Add `num_strings', `strings', and `string_pool'
fields.
Remove `string_index' and `num_global_subrs' fields.
Use real types instead of `void' for `pshinter' and `psnames' fields.
* src/cff/cffload.c: Don't include PS cmaps service.
(cff_index_get_pointers): Add `pool' parameter which allows to
insert an extra NUL character for each String INDEX entry.
(cff_index_get_name): Make it a local function.
(cff_index_get_string): New function.
(cff_subfont_load): Updated.
(cff_font_load): Initialize `num_strings', `strings', and
`string_pool' fields in the `CFF_FontRec' structure.
(cff_index_get_sid_string): Use `cff_index_get_string' instead of
`cff_index_get_name'.
(cff_font_done): Updated.
* src/cff/cffload.h: Don't include PS cmaps service.
(cff_index_get_string): Added.
(cff_index_get_sid_string): Updated.
* src/cff/cffobjs.c: Don't include PS cmaps service and
FT_INTERNAL_POSTSCRIPT_HINTS_H.
(cff_size_get_globals_funcs, cff_slot_init): Updated.
(cff_face_init): Follow `cff_index_get_name',
`cff_index_get_string', and `cff_index_get_sid_string' changes.
* src/cff/cffcmap.c (cff_sid_free_glyph_name): Removed.
(cff_sid_to_glyph_name): Use `cff_index_get_cid_string'.
(cff_cmap_unicode_init): Updated.
* src/cff/cffdrivr.c: Don't include PS cmap service.
(cff_get_glyph_name): Avoid unnecessary lookup for POSTSCRIPT_CMAPS
service.
(cff_get_glyph_name, cff_ps_get_font_info, cff_get_ros): Follow API
`cff_index_get_sid_string' change.
(cff_get_name_index): Use `cff_index_get_string' instead of
`cff_index_get_name'.
* src/cff/cffgload.c: Don't include FT_INTERNAL_POSTSCRIPT_HINTS_H.
(cff_decoder_init, cff_decoder_prepare): Updated.
2010-02-27 Werner Lemberg <wl@gnu.org>
Simplify code.
Suggested by Behdad.
* src/base/ftobjs.c (FT_Get_First_Char): Don't use a loop since we
call FT_Get_Next_Char anyway if necessary.
2010-02-26 Behdad Esfahbod <behdad@behdad.org>
Improve handling of invalid glyph indices in char->index functions.
* src/base/ftobjs.c (FT_Get_First_Char, FT_Get_Next_Char): Use a
loop.
2010-02-18 Chris Liddell <chris.liddell@artifex.com>
Fix Savannah bug #28905.
Initialize phantom points before calling the incremental interface
to update glyph metrics.
* src/truetype/ttgload.c (tt_get_metrics_incr_overrides)
[FT_CONFIG_OPTION_INCREMENTAL]: New function, split off from...
(tt_get_metrics): This.
Updated.
(load_truetype_glyph): Use tt_get_metrics_incr_overrides.
----------------------------------------------------------------------------
Copyright 2010, 2011 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used, modified,
and distributed under the terms of the FreeType project license,
LICENSE.TXT. By continuing to use, modify, or distribute this file you
indicate that you have read the license and understand and accept it
fully.
Local Variables:
version-control: never
coding: utf-8
End:
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