changelog.22

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

	* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Render the outline and
	use bitmap's embolden routine when the outline one failed.

2006-02-22  Chia-I Wu  <[e-mail]>

	* modules.cfg: Compile in ftotval.c and ftxf86.c by default for ABI
	compatibility.

	* src/sfnt/sfobjs.c (sfnt_done_face): Fix a memory leak.

	* src/sfnt/ttsbit0.c (tt_sbit_decoder_load_bit_aligned,
	tt_sbit_decoder_load_byte_aligned) [FT_OPTIMIZE_MEMORY]: Fix sbit
	loading.  (Only tested with bit aligned sbit with x_pos == 0.)

	* src/truetype/ttpload.c (tt_face_load_hdmx,
	tt_face_get_device_metrics) [FT_OPTIMIZE_MEMORY]: `hdmx' is not
	actually used.

2006-02-21  David Turner  <[e-mail]>

	Add a new API named FT_Get_TrueType_Engine_Type to determine whether
	we have a patented, unpatented, or unimplemented TrueType bytecode
	interpreter.

	The FT_Get_Module_Flags API was removed consequently.

	* include/freetype/ftmodapi.h (FT_Module_Get_Flags): Removed.
	Replaced with...
	(FT_Get_TrueType_Engine_Type): This.
	(FT_TrueTypeEngineType): New enumeration.

	* include/freetype/internal/ftserv.h (FT_SERVICE_TRUETYPE_ENGINE_H):
	New macro.

	* src/base/ftobjs.c: Include FT_SERVICE_TRUETYPE_ENGINE_H.
	(FT_Module_Get_Flags): Removed.  Replaced with...
	(FT_Get_TrueType_Engine_Type): This.

	* src/truetype/ttdriver.c: Include FT_SERVICE_TRUETYPE_ENGINE_H.
	(tt_service_truetype_engine): New service structure.
	(tt_services): Register it.

	* include/freetype/internal/services/svtteng.h: New file.


	* src/sfnt/sfobjs.c (sfnt_load_face): Fix silly bug that prevented
	embedded bitmaps from being correctly listed and used.


	* src/sfnt/ttmtx.c (tt_face_load_hmtx): Disable memory optimization
	if FT_CONFIG_OPTION_OLD_INTERNALS is used.  The is necessary because
	libXfont is directly accessing the HMTX data, unfortunately.
	Fix some compiler warnings.
	(tt_face_get_metrics): Ditto.


	* src/pfr/pfrsbit.c (pfr_slot_load_bitmap): Fix handling of
	character advances.

2006-02-20  David Turner  <[e-mail]>

	Support binary compatibility with the X.Org server's Xfont library.
	Note that this change unfortunately prevents memory optimizations
	for the embedded bitmap loader.

	* include/freetype/internal/sfnt.h (SFNT_Interface): Move
	`set_sbit_strike' and `load_sbit_metrics' fields to the location of
	version 2.1.8.

	* src/sfnt/sfdriver.c (tt_face_set_sbit_strike_stub): Call
	FT_Size_Request.
	(sfnt_interface): Updated.

	* src/sfnt/ttsbit.c [FT_CONFIG_OPTION_OLD_INTERNALS]: Don't load
	ttsbit0.c.
	(tt_load_sbit_metrics): Make `sbit_small_metrics_fields' static.

	* src/sfnt/ttsbit.h: Updated.

2006-02-17  David Turner  <[e-mail]>

	* builds/unix/unix-cc.in (LINK_LIBRARY): Don't filter out exported
	functions anymore.  This ensures that all FT_BASE internal functions
	are available for dynamic linking.

	* include/freetype/ftcache.h (FTC_IMAGE_TYPE_COMPARE,
	FTC_IMAGE_TYPE_HASH), src/cache/ftcbasic.c (FTC_OldFontRec,
	FTC_OldImageDescRec, FTC_ImageCache_Lookup, FTC_Image_Cache_New,
	FTC_OldImage_Desc, FTC_OLD_IMAGE_FORMAT, ftc_old_image_xxx,
	ftc_image_type_from_old_desc, FTC_Image_Cache_Lookup,
	FTC_SBitCache_Lookup, FTC_SBit_Cache_New, FTC_SBit_Cache_Lookup)
	[FT_CONFIG_OPTION_OLD_INTERNALS]: Try to revive old functions of the
	cache sub-system.  We try to recognize old legacy signatures with a
	gross hack (hope it works).

2006-02-17  Werner Lemberg  <[e-mail]>

	* devel/ftoption.h: Synchronize with
	include/freetype/config/ftoption.h.

2006-02-16  David Turner  <[e-mail]>

	Massive changes to the internals to respect the internal object
	layouts and exported functions of FreeType 2.1.7.  Note that the
	cache sub-system cannot be fully retrofitted, unfortunately.

	* include/freetype/config/ftoption.h
	(FT_CONFIG_OPTION_OLD_INTERNALS): New macro.

	* include/freetype/ftcache.h, include/freetype/cache/ftccache.h,
	include/freetype/cache/ftccmap.h,
	include/freetype/internal/ftcalc.h,
	include/freetype/internal/ftdriver.h,
	include/freetype/internal/ftmemory.h,
	include/freetype/internal/ftobjs.h,
	include/freetype/internal/psaux.h, include/freetype/internal/sfnt.h,
	include/freetype/internal/t1types.h,
	include/freetype/internal/tttypes.h, src/base/ftcalc.c,
	src/base/ftdbgmem.c, src/base/ftobjs.c, src/base/ftutil.c,
	src/bdf/bdfdrivr.c, src/cache/ftccache.c, src/cache/ftccback.h,
	src/cache/ftcmanag.c, src/cff/cffdrivr.c, src/cid/cidriver.c,
	src/pcf/pcfdrivr.c, src/pfr/pfrdrivr.c, src/psaux/psauxmod.c,
	src/sfnt/sfdriver.c, src/truetype/ttdriver.c, src/type1/t1driver.c,
	src/type1/t1objs.c, src/type42/t42drivr.c, src/winfonts/winfnt.c:
	Use FT_CONFIG_OPTION_OLD_INTERNALS to revive old functions and data
	structures.

	Move newly added structure elements to the end of the affected
	structure and add stub fields (if FT_CONFIG_OPTION_OLD_INTERNALS is
	defined) to assure binary compatibility with older FreeType
	versions.
	Use FT_CONFIG_OPTION_OLD_INTERNALS to add function stubs for old
	functions:

	  ft_stub_set_char_sizes
	  ft_stub_set_pixel_sizes

	Rename the following internal functions to provide the old function
	names as stubs:

	  FT_Alloc          -> ft_mem_alloc
	  FT_QAlloc         -> ft_mem_qalloc
	  FT_Realloc        -> ft_mem_realloc
	  FT_QRealloc       -> ft_mem_qrealloc
	  FT_Free           -> ft_mem_free
	  FT_Alloc_Debug    -> ft_mem_alloc_debug
	  FT_QAlloc_Debug   -> ft_mem_qalloc_debug
	  FT_Realloc_Debug  -> ft_mem_realloc_debug
	  FT_QRealloc_Debug -> ft_mem_qrealloc_debug
	  FT_Free_Debug     -> ft_mem_free_debug

2006-02-15  Chia-I Wu  <[e-mail]>

	* include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove
	unused `max_points' and `max_contours'.

	* src/cid/cidobjs.c (cid_face_init), src/type1/t1objs.c
	(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Update.

	* include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused
	`max_components'.

	* src/truetype/ttinterp.h (TT_ExecContextRec): Remove unused
	`loadSize' and `loadStack'.

	* src/truetype/ttinterp.c (TT_Done_Context, TT_Load_Context),
	src/sfnt/ttload.c (tt_face_load_maxp): Update.

	* src/cff/cffobjs.h (cff_size_select), src/sfnt/sfdriver.c
	(sfnt_interface), src/truetype/ttdriver.c (tt_size_request): Fix
	compiler errors/warnings when TT_CONFIG_OPTION_EMBEDDED_BITMAPS is not
	defined.

	* src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_get_metrics): Fix
	possible segment faults for the non-FT_OPTIMIZE_MEMORY'ed versions.
	(finally!)


	For most OpenType tables, `tt_face_load_xxxx' simply loads the table
	and `face->root' is set later in `sfnt_load_face'.  Here, we try to
	make this work for _all_ tables.  Also improve tracing messages.

	* src/sfnt/ttsbit.c, src/sfnt/ttsbit0.c, src/sfnt/ttload.c,
	src/sfnt/ttmtx.c: all `tt_face_load_xxxx' should load the table and
	then exit.  Error handling or setting face->root is done later in
	`sfnt_load_face'.

	* src/sfnt/sfobjs.c (sfnt_load_face): Work harder.
	Mac bitmap-only fonts are not scalable.
	Check that `face->header.Units_Per_EM' is not zero.
	(LOAD_, LOADM_): Emit pretty trace messages.

	* src/sfnt/ttsbit0.c (tt_face_load_strike_metrics): Read metrics
	from `eblc'.

	* src/sfnt/ttcmap.c (tt_face_build_cmaps), src/sfnt/ttpost.c
	(load_format_20, load_format_25, tt_face_get_ps_name): Use
	face->max_profile.numGlyphs, instead of face->root.num_glyphs.

2006-02-14  Werner Lemberg  <[e-mail]>

	* include/freetype/ftoutln.h (FT_Outline_Embolden): Mention in
	documentation that negative strength values are possible.
	Give an example call.

	* include/freetype/freetype.h (FT_GlyphSlotRec): Improve
	documentation of `outline' field.

	* src/sfnt/sfobjc.s: Inckude FT_INTERNAL_DEBUG_H.
	* src/sfnt/sfdriver.c: Include ttmtx.h.

	* src/autofit/afcjk.c: Include aftypes.h and aflatin.h.

2006-02-14  Chia-I Wu  <[e-mail]>

	* src/sfnt/ttmtx.c (tt_face_get_metrics): Typo.

2006-02-14  Chia-I Wu  <[e-mail]>

	* src/sfnt/ttmtx.c (tt_face_load_hhea, tt_face_load_hmtx): Simply
	return error if table is missing.
	Check table length in non-FT_OPTIMIZE_MEMORY'ed `tt_face_load_hmtx'.

	* src/sfnt/sfobjs.c (sfnt_load_face): Take care of missing metrics
	tables.  The last change makes Mac bitmap-only font not load and
	this fixes it.

	* src/truetype/ttgload.c (load_truetype_glyph): Fix compilation
	error when FT_CONFIG_OPTION_INCREMENTAL is defined.

2006-02-13  Chia-I Wu  <[e-mail]>

	Clean up the SFNT_Interface.  In this final pass, `load_hmtx' is
	split from `load_hhea'.

	* include/freetype/internal/sfnt.h, src/sfnt/sfdriver.c,
	src/sfnt/ttmtx.c, src/sfnt/ttmtx.h: Split `hmtx' from `hhea'.

	* src/sfnt/sfobjs.c (sfnt_load_face): Update.

2006-02-13  Chia-I Wu  <[e-mail]>

	* src/sfnt/ttmtx.h, src/sfnt/ttmtx.c: Why are there two copies of
	code...

2006-02-13  Chia-I Wu  <[e-mail]>

	Clean up the SFNT_Interface.  In this pass, we want to treat the
	font directory (offset table and table directory) as a normal table
	like the others.  This also means that TTCs are no longer recognized
	there but in `init_face'.

	* include/freetype/internal/sfnt.h (SFNT_Interface),
	src/sfnt/sfdriver.c: `load_sfnt_header' and `load_directory' are
	combined and renamed to `load_font_dir'.

	* src/sfnt/ttload.h, src/sfnt/ttload.c:
	s/sfnt_dir_check/check_table_dir/.
	`sfnt_init' is moved to sfobjs.c and renamed to `sfnt_open_font'.
	`tt_face_load_sfnt_header' and `tt_face_load_directory' are combined
	and renamed to `tt_face_load_font_dir'.

	* src/sfnt/sfobjs.c (sfnt_init_face): Recognize TTC here.

2006-02-13  Chia-I Wu  <[e-mail]>

	Clean up the SFNT_Interface.  Table loading functions are now named
	after the tables' tags; `hdmx' is TrueType-specific and thus the
	code is moved to the truetype module; `get_metrics' is moved here
	from the truetype module so that the code can be shared with the cff
	module.

	This pass involves no real changes.  That is, the code is moved
	verbatim mostly.  The only exception is the return value of
	`tt_face_get_metrics'.

	* include/freetype/internal/sfnt.h, src/sfnt/rules.mk,
	src/sfnt/sfdriver.c, src/sfnt/sfnt.c, src/sfnt/sfobjs.c,
	src/sfnt/ttload.c, src/sfnt/ttload.h, src/sfnt/ttsbit.c,
	src/sfnt/ttsbit.h, src/sfnt/ttsbit0.c: Clean up the SFNT_Interface.

	* src/sfnt/ttmtx.c, src/sfnt/ttmtx.h: New files.  Metrics-related
	tables' loading and parsing code is moved to here.
	Move `tt_face_get_metrics' here from the truetype module.  The
	return value is changed from `void' to `FT_Error'.

	* include/freetype/internal/fttrace.h: New trace: ttmtx.

	* src/truetype/ttpload.c, src/truetype/ttpload.h: `hdmx' loading and
	parsing code is moved here.
	New function `tt_face_load_prep' split from `tt_face_load_fpgm'.
	`tt_face_load_fpgm' returns `FT_Err_Ok' if `fpgm' doesn't exist.

	* src/cff/cffgload.c, src/cff/cffobjs.c: Update.

	* src/truetype/ttgload.c, src/truetype/ttobjs.c: Update.

2006-02-11  Chia-I Wu  <[e-mail]>

	* src/autofit/afcjk.c (af_cjk_metrics_init): Fix a stupid bug...

	* src/autofit/aflatin.c (af_latin_metrics_init_widths): Use
	AF_LatinMetricsRec as the dummy metrics because we cast the metrics
	to it later in `af_latin_hints_link_segments'.

2006-02-11  Chia-I Wu  <[e-mail]>

	* include/freetype/config/ftoption.h (AF_CONFIG_OPTION_CJK): #define
	to enable autofit CJK script support.  (#define'd by default.)

	* src/autofit/aflatin.h (AF_LATIN_CONSTANT): New macro.

	* src/autofit/aflatin.c (af_latin_metrics_init_widths): Make sure
	that `edge_distance_threshold' is always set.
	(af_latin_hints_link_segments): Potential divide-by-zero bug.
	Use latin constant in the scoring formula.

	* src/autofit/afcjk.c: Minor updates due to the above three changes.

	* docs/TODO, docs/CHANGES: Updated.

2006-02-09  Chia-I Wu  <[e-mail]>

	Introduce experimental autofit CJK module based on akito's autohint
	patch.  You need to #define AF_MOD_CJK in afcjk.c to enable it.

	* src/autofit/afglobal.c, src/autofit/afcjk.h, src/autofit/afcjk.c,
	src/autofit/rules.mk, src/autofit/autofit.c, src/autofit/aftypes.h:
	Add CJK module based on akito's autohint patch.

	* src/autofit/afhints.h (AF_SegmentRec): New field `len' for the
	overlap length of the segments.
	(AF_SEGMENT_LEN, AF_SEGMENT_DIST): New macros.

	* src/autofit/aflatin.h (af_latin_metrics_init_widths),
	src/autofit/aflatin.c (af_latin_metrics_init_widths): Made
	`FT_LOCAL'.
	Use the character given by the caller.
	(af_latin_metrics_init_widths, af_latin_hints_link_segments): Scale
	the thresholds.

	* src/autofit/afloader.c (af_loader_load_g): Respect
	AF_SCALER_FLAG_NO_ADVANCE.

2006-02-09  Werner Lemberg  <[e-mail]>

	* src/cid/cidparse.c (cid_parse_new): Remove shadowing variable.

2006-02-09  suzuki toshiya  <[e-mail]>

	* src/cid/cidparse.c (cid_parse_new): Fix for abnormally short or
	broken CIDFont.  Reported by Taek Kwan(TK) Lee (see ft-devel
	2005-11-02).

2006-02-08  suzuki toshiya  <[e-mail]>

	* builds/unix/configure.ac: Fix bug for `--with-old-mac-fonts'
	option on UNIX platform.  It has been broken since 2006-01-11.

2006-02-01  Werner Lemberg  <[e-mail]>

	* src/otvalid/module.mk: s/otvalid_module_class/otv_module_class/.
	* src/gxvalid/module.mk: s/gxvalid_module_class/gxv_module_class/.