freetype/ChangeLog

2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] Sanitize the broken offsets in `loca'.

	* 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.
	See Savannah bug #31040.

2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[sfnt] Prevent overrunning in `post' table parser.

	* 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.  See Savannah bug #31040.

2010-09-17  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] Don't duplicate size->twilight structure to be freed.

	* 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.  See Savannah bug #31040 for detail.

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 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.


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version-control: never
coding: utf-8
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