Commit Graph

2318 Commits

Author SHA1 Message Date
suzuki toshiya fd0cdb7b9e 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 18:32:03 +09:00
suzuki toshiya 0eb657b0aa [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().
2010-08-31 13:29:05 +09:00
suzuki toshiya 29e044a4af [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.

Fix Savannah bug #30798, reported by Robert Swiecki.
2010-08-31 01:23:30 +09:00
Werner Lemberg 12cf031644 [ftraster] Pacify compiler.
* src/raster/ftraster.c (ft_black_new) [_STANDALONE_]: `memory' is
not used.
2010-08-29 17:24:30 +02:00
Werner Lemberg 0e95b3d15c [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>.
2010-08-29 17:24:30 +02:00
suzuki toshiya 1ab1e9ae30 Fix ChangeLogs. 2010-08-29 06:04:51 +09:00
suzuki toshiya 0eb9b1f571 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 21:42:28 +09:00
suzuki toshiya 8b05b5d801 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.
2010-08-28 21:16:26 +09:00
Teijo Kinnunen ebaeb6425e Fix Savannah bug #30788.
* src/cache/ftccache.c (FTC_Cache_Clear): Check `cache->buckets' for
NULL too.
2010-08-17 07:40:55 +02:00
Werner Lemberg a205b3ca85 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'.
2010-08-10 02:59:12 +02:00
Werner Lemberg 6a8691eb6a * 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 22:00:38 +02:00
Werner Lemberg ba95440cd1 Minor doc fixes, formatting. 2010-08-06 20:07:36 +02:00
suzuki toshiya 445241589d Fix Savannah bug #30648.
* src/base/ftobjs.c (FT_Done_Library): Specify the order of font
drivers in face closing process. Type42 faces should be closed
before TrueType faces, because a Type42 face refers another
internal TrueType face which is created from sfnt[] array on the
memory.
2010-08-07 01:46:56 +09:00
Yuriy Kaminskiy c9de9cbd56 [raster] Fix valgrind warning.
* src/raster/ftraster.c (Decompose_Curve) <default>: Access point[0]
only if we don't hit `limit'.
2010-08-06 08:20:28 +02:00
suzuki toshiya 81f3472c0b Fix Savannah bug #30658.
* src/base/ftobjs.c (Mac_Read_POST_Resource): Check the total
length of collected POST segments does not overrun the allocated
buffer.
2010-08-06 14:11:54 +09:00
Werner Lemberg 948076cd85 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__/.
2010-08-06 01:39:26 +02:00
Werner Lemberg 346f1867fd 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'.
2010-08-06 00:47:57 +02:00
Werner Lemberg c06da1ad34 Fix Savannah bug #30656.
* src/type42/t42parse.c (t42_parse_sfnts): Protect against negative
string_size.
Fix comparison.
2010-08-05 23:15:26 +02:00
suzuki toshiya d9b3e39484 [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.
2010-08-05 17:10:32 +09:00
Werner Lemberg 45a3c76b54 Fix Savannah bug #30644.
* src/base/ftstream.c (FT_Stream_EnterFrame): Fix comparison.
2010-08-04 15:54:55 +02:00
Werner Lemberg 32dc43a5cc `make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set.
* devel/ftoption.h: Synchronize with
include/freetype/config/ftoption.h.
2010-08-04 15:21:20 +02:00
Suzuki, Toshiya (鈴木俊哉) 11d65e8a1f [cff] Improve stack overflow test.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Check stack
after execution of operations too.
2010-08-04 14:43:29 +02:00
Werner Lemberg fe3433c736 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 18:41:47 +02:00
Werner Lemberg b69c6ac011 * 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.
2010-07-18 06:20:09 +02:00
Werner Lemberg 2de6b8a3db [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.
2010-07-17 13:39:50 +02:00
Werner Lemberg 072afbdbac Fix ChangeLog entry. 2010-07-13 06:26:46 +02:00
Werner Lemberg 15ffc3546d * 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 22:07:16 +02:00
Werner Lemberg 511b799926 Split ChangeLog. 2010-07-12 21:53:20 +02:00
Werner Lemberg c8f5b98be2 Remove C++ warnings.
*/*: Initialize pointers where necessary to make g++ happy.
2010-07-12 21:13:22 +02:00
malc f4e6c155f0 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'.
2010-07-12 20:57:54 +02:00
Werner Lemberg ebfd454a60 Fix C++ compilation issue.
* src/tools/apinames.c (names_dump) <OUTPUT_WATCOM_LBC>: Fix
typo of `dot' variable.
2010-07-11 09:28:21 +02:00
suzuki toshiya d594202ebb 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.
2010-07-11 00:31:17 +09:00
suzuki toshiya 840f208df4 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 22:51:49 +09:00
suzuki toshiya b8ca6de365 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 20:50:34 +09:00
Ken Sharp 603d121872 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.
2010-07-09 09:55:29 +02:00
Werner Lemberg 888cd1843e Fix Savannah bug #30361.
* src/truetype/ttinterp.c (Ins_IUP): Fix bounds check.
2010-07-08 07:29:42 +02:00
Werner Lemberg c73e160517 Pacify compiler.
* src/cff/cffload.c (cff_index_get_pointers): Initialize
`new_bytes'.
2010-07-06 10:44:56 +02:00
Eugene A. Shatokhin b33b856a27 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.

Fix comment typo.
2010-07-05 22:36:30 +02:00
Werner Lemberg e8770c679b Fix Savannah bug #30030.
* builds/win32/*/freetype.vcproj: Add ftxf86.c.
2010-07-05 07:45:02 +02:00
Werner Lemberg 2dc76a4650 [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.
2010-07-05 06:40:02 +02:00
suzuki toshiya 0ae3271814 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.
2010-07-05 09:59:03 +09:00
Werner Lemberg 6bbbbc1523 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 07:37:56 +02:00
Werner Lemberg ce27fd56fa Cosmetic changes. 2010-07-04 07:09:10 +02:00
suzuki toshiya a874c7ecca 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.
2010-07-04 12:08:41 +09:00
Werner Lemberg e017639710 Make ftgrays.c compile stand-alone again.
* src/smooth/ftgrays.c [_STANDALONE_]: Include `stddef.h'.
(FT_INT_MAX, FT_PtrDist)[_STANDALONE_]: Define.
2010-07-03 15:31:38 +02:00
suzuki toshiya b2ea64bcc6 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
comment only and should not be loaded for the interpreter.
Reported by Robert Swiecki.
2010-07-02 18:19:39 +09:00
Werner Lemberg c2dabdeed0 Merge branch 'master' of git.sv.gnu.org:/srv/git/freetype/freetype2
Conflicts:
	ChangeLog
2010-07-02 01:27:49 +02:00
suzuki toshiya 5ef20c8c1d 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 exist of following
16bit `type'. Reported by Robert Swiecki.
2010-07-01 18:39:04 +09:00
Werner Lemberg a2d225e322 [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 11:37:09 +02:00
Werner Lemberg 462ddb4072 [truetype] Add rudimentary tracing for bytecode instructions.
* src/truetype/ttinterp.c (opcode_name) [FT_DEBUG_LEVEL_TRACE]: New
array.
(TT_RunIns): Trace opcodes.
2010-07-01 11:28:43 +02:00
suzuki toshiya f29f741efb 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 Swiecki.
2010-07-01 17:32:40 +09:00
Werner Lemberg 6305b869d8 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.
2010-06-30 18:24:33 +02:00
Werner Lemberg 0ae6cf214f Minor optimizations by avoiding divisions.
* src/sfnt/ttkern.c (tt_face_load_kern, tt_face_get_kerning):
Replace divisions with multiplication in comparisons.
2010-06-30 10:26:48 +02:00
Werner Lemberg ae425e5189 Fix minor tracing issues.
* src/cff/cffgload.c, src/truetype/ttgload.c: Adjust tracing levels.
2010-06-29 12:31:08 +02:00
Werner Lemberg 18b552f6ae [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 15:41:02 +02:00
Werner Lemberg 8bebaa74cc Fix valgrind warning.
* src/base/ftoutln.c (FT_Outline_Get_Orientation): Initialize
`result' array.
2010-06-27 15:10:15 +02:00
Werner Lemberg 4f7851e3d2 [cff] Fix memory leak.
* src/cff/cffgload.c (cff_operator_seac): Free charstrings even in
case of errors.
2010-06-27 13:03:54 +02:00
Werner Lemberg e9f0cdb6c0 [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.
2010-06-27 12:34:19 +02:00
Werner Lemberg 1c70fcbc0a Fix PFR change 2010-06-24.
* src/pfr/pfrgload.c (pfr_glyph_load_simple): Really protect against
invalid indices.
2010-06-27 00:43:23 +02:00
Werner Lemberg 91ea0bf80d Improve PFR tracing messages.
* src/pfr/pfrgload.c (pfr_glyph_load_rec): Emit tracing messages for
simple and compound glyph offsets.
2010-06-26 22:46:38 +02:00
Werner Lemberg 82ad8ab242 Fix last PFR change.
* src/pfr/pfrobjs.c (pfr_face_init): Fix rejection logic.
2010-06-26 09:45:41 +02:00
Werner Lemberg 7d91173643 Fix Savannah bug #30262.
* src/sfnt/ttload.c (tt_face_load_maxp): Limit `maxComponentDepth'
arbitrarily to 100 to avoid stack exhaustion.
2010-06-26 09:29:51 +02:00
Werner Lemberg 75787c19ea 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.
2010-06-26 09:24:08 +02:00
Werner Lemberg ea5babaa67 Fix Savannah bug #30261.
* src/pfr/pfrobjs.c (pfr_face_init): Reject fonts which contain
neither outline nor bitmap glyphs.
2010-06-25 22:44:37 +02:00
Werner Lemberg e23ba91af7 Fix Savannah bug #30254.
* src/cff/cffload.c (cff_index_get_pointers): Do sanity check for
first offset also.
2010-06-25 21:55:14 +02:00
suzuki toshiya c69891a134 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 Swiecki.
2010-06-25 10:48:12 +09:00
Werner Lemberg 6fc12943e9 Fix Savannah bug #30247.
* src/pcf/pcfread.c (pcf_get_metrics): Disallow (invalid) fonts with
zero metrics.
2010-06-24 20:20:26 +02:00
Graham Asher e419f48b40 * 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 12:50:46 +02:00
Werner Lemberg f765e4403c */*: Use module specific error names where appropriate. 2010-06-24 10:34:29 +02:00
Werner Lemberg 8b1c34da4c Fix Savannah bug #30236.
* src/sfnt/ttcmap.c (tt_face_build_cmaps): Improve check for pointer
to `cmap_table'.
2010-06-24 08:48:10 +02:00
Werner Lemberg 3cf87f4d27 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 08:20:56 +02:00
Werner Lemberg b21d7bc567 [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'.
2010-06-24 07:40:49 +02:00
Werner Lemberg fb69029a7a 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).
2010-06-23 10:00:52 +02:00
Werner Lemberg ddc4b136d6 Fix Savannah bug #30168.
* src/pfr/pfrgload.c (pfr_glyph_load_compound): Limit the number of
subglyphs to avoid endless recursion.
2010-06-21 09:28:32 +02:00
Werner Lemberg 90b07bd541 Fix Savannah bug #30145.
* src/psaux/psobjs.c (t1_builder_add_contour): Protect against
`outline == NULL' which might happen in invalid fonts.
2010-06-20 16:27:36 +02:00
Werner Lemberg f4c94d4b5f 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.
2010-06-19 16:08:31 +02:00
Werner Lemberg 5d86cdce7e Fix Savannah bug #30108.
* src/autofit/afglobal.c (af_face_globals_compute_script_coverage):
Properly mask AF_DIGIT bit in comparison.
2010-06-15 08:29:30 +02:00
Werner Lemberg 8d22746c9e 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'.
2010-06-12 01:32:20 +02:00
Werner Lemberg 3624110cc2 [cff]: Improve debugging output.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_hintmask>: Implement it.
2010-06-11 23:00:22 +02:00
Graham Asher 7fb3ef64a2 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
2010-06-10 08:10:57 +02:00
Werner Lemberg 7d3d2cc4fe Fix Savannah bug #30082.
* src/cff/cffgload.c (cff_decoder_parse_charstrings)
<cff_op_callothersubr>: Protect against stack underflow.
2010-06-09 09:14:09 +02:00
Werner Lemberg a4124bf088 Fix Savannah bug #30053.
* src/cff/cffparse (cff_parse_real): Handle border case where
`fraction_length' has value 10.
2010-06-08 09:21:39 +02:00
Werner Lemberg d087199f2c 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.
2010-06-07 08:46:01 +02:00
Werner Lemberg c217bf19f0 Remove unused variable.
Found by Graham.

* src/autofit/afhints.c (af_glyph_hints_reload): Remove unused
variable `first' in first block.
2010-05-26 16:16:34 +02:00
Werner Lemberg e30de299f2 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'.

Improve API documentation.
2010-05-22 20:03:41 +02:00
Werner Lemberg 09344385ee 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.
2010-05-22 07:43:22 +02:00
Bram Tassyns d7cc8f499a Fix Savannah bug #27987.
* src/cff/cffobjs.c (remove_subset_prefix): New function.
(cff_face_init): Use it to adjust `cffface->family_name'.
2010-05-21 10:14:58 +02:00
Werner Lemberg 6da023d1ff 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.
2010-05-20 15:38:00 +02:00
Hongbo Ni 236fc8e15a Apply patch #7196.
* src/cff/cffgload.c (cff_slot_load): Prevent crash if CFF subfont
index is out of range.
2010-05-18 11:00:39 +02:00
Werner Lemberg 4c66924440 * docs/formats.txt: Give pointer to PCF documentation.
Information provided by Alan Coopersmith
<alan.coopersmith@oracle.com>.
2010-05-11 07:24:28 +02:00
Ken Sharp 88169b107a 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.
2010-05-11 00:03:33 +02:00
Ken Sharp 54e63755f3 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 23:38:35 +02:00
Michał Cichoń 08e254e0a6 Fix Savannah bug #27999.
* src/cache/ftcmanag.c (FTC_Manager_RemoveFaceID): Only remove
selected entry, not all.
2010-04-14 21:25:30 +02:00
Jonathan Kew 25e742c573 Add overflow check to `fvar' table.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis and instance
count.
2010-04-06 16:42:56 +02:00
Ken Sharp 7baeeafcec 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 11:19:38 +02:00
Werner Lemberg 460d23f168 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.
2010-04-05 08:46:26 +02:00
John Tytgat 8c4cce5259 Fix Savannah bug #29404.
* src/truetype/ttgload.c: Revert change 2752bd1a (check on bit 1
of `head' table of TrueType fonts).
2010-04-05 08:22:22 +02:00
suzuki toshiya cef43bde8e Fix `multi build' for Tytgat's CFF driver improvement.
* src/base/cffload.h (cff_index_get_name): Added.
2010-03-14 23:12:13 +09:00
suzuki toshiya 199f04f33d Remove duplicated inclusion of `FT_OUTLINE_H' in ftobjs.c. 2010-03-12 14:48:57 +09:00
Chris Liddell 6c0d881418 Fix Savannah bug #27442.
* src/raster/ftraster.c (ft_black_reset): Fix `buffer_size'.
2010-03-11 18:27:31 +01:00