changelog

freetype:字库引擎,执行程序,用于安装 2.3.5

	include/freetype/ftlcdfil.h: Update reference documentation with
	GASP support and LCD filtering sections.

	* src/pshinter/pshalgo.c (psh_glyph_compute_inflections): Fix a typo
	which created an endless loop with some malformed font files.

2007-01-10  Derek Clegg  <[e-mail]>

	* src/type1/t1load.c (T1_Get_MM_Var): Always return fixed point
	values.

2007-01-08  David Turner  <[e-mail]>

	* docs/CHANGES: Updated.

	* include/freetype/ftgasp.h, src/base/ftgasp.c: New files which add
	a new API `FT_Get_Gasp' to return entries of the `gasp' table
	corresponding to a given character pixel size.

	* src/sfnt/ttload.c (tt_face_load_gasp): Add version check for the
	`gasp' table, in order to avoid potential problems with later
	versions.

	* include/freetype/config/ftheader.h (FT_GASP_H): New macro for
	<freetype/ftgasp.h>.

	* src/base/rules.mk (BASE_SRC), src/base/Jamfile (_sources),
	modules.cfg (BASE_EXTENSIONS), builds/win32/visualc/freetype.dsp,
	builds/win32/visualc/freetype.vcproj: Add src/base/ftgasp.c to the
	default build.

2007-01-07  Werner Lemberg  <[e-mail]>

	* src/cid/cidparse.c (cid_parser_new): Improve error message for
	Type 11 fonts.
	Scan for `/sfnts' token.

2007-01-07  Werner Lemberg  <[e-mail]>

	* src/cid/cidparse.c (cid_parser_new): Reject Type 11 fonts.

2007-01-06  Werner Lemberg  <[e-mail]>

	* src/cff/cffload.c (cff_index_init): Remove unused variable.
	(cff_index_read_offset): s/perror/errorp/ to avoid global shadowing.

2007-01-04  David Turner  <[e-mail]>

	* src/pfr/pfrobjs.c (pfr_face_init): Detect non-scalable fonts
	correctly.  This fixes Savannah bug #17876.


	Do not allocate interpreter-specific tables in memory if we are not
	going to load glyphs with the bytecode interpreter anyway.

	* src/truetype/ttgload.c (tt_loader_init): Load execution context
	only if glyph is hinted.
	Updated.
	* src/truetype/ttobjs.h (TT_SizeRec): Add members `bytecode_ready'
	and `cvs_ready'.
	Add `tt_size_ready_bytecode' declaration.
	* src/truetype/ttobjs.c (tt_size_done_bytecode,
	tt_size_init_bytecode, tt_size_ready_bytecode): New functions.
	(tt_size_init): Move most code into `tt_size_init_bytecode'.
	(tt_size_done): Move most code into `tt_size_done_bytecode'.
	(tt_size_reset): Move some code to `tt_size_ready_bytecode'.


	Don't extract the metrics table from the SFNT font file.  Instead,
	reparse it on each glyph load.  The runtime difference is not
	noticeable, and it can save a lot of heap memory when memory-mapped
	files are not used.

	* include/freetype/internal/tttypes.h (TT_FaceRec): Add members
	`horz_metrics_offset' and `vert_metrics_ofset'.
	* src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_get_metrics):
	Updated.


	* src/sfnt/ttcmap.c (tt_cmap4_validate): Slight optimization.


	Do not load the CFF index offsets into memory, since this wastes a
	*lot* of heap memory with large Asian CFF fonts.  There is no
	significant performance loss.

	* src/cff/cffload.h: Add `cff_charset_cid_to_gindex' declaration.
	* src/cff/cfftypes.h (CFF_IndexRec): Add fields `start' and
	`data_size'.
	(CFF_CharsetRec): Add field `num_glyphs'.

	* src/cff/cffload.c (cff_index_read_offset, cff_index_load_offsets,
	cff_charset_cid_to_gindex): New functions.
	(cff_new_index): Renamed to...
	(cff_index_init): This.  Update all callers.
	Updated -- some code has been moved to `cff_index_load_offsets'.
	(cff_done_index): Renamed to...
	(cff_index_done): This.  Update all callers.
	(cff_index_get_pointers, cff_index_access_element): Updated to use
	stream offsets.
	(cff_charset_compute_cids): Set `num_glyphs' field.
	(cff_encoding_load): Updated.

	* src/cff/cffgload.c (cff_slot_load): Updated.

2007-01-04  David Turner  <[e-mail]>

	* docs/INSTALL.UNIX: Simplify some parts, add reference to
	autogen.sh and pointer to README.CVS.

	* README.CVS: Add common problem description and solution
	when running autogen.sh.

	* docs/INSTALL: Add reference to MacOS X.

	* docs/MAKEPP, docs/INSTALL.MAC: New documentation files.

	* docs/TODO: Remove obsolete items.

	* src/raster/ftraster.c: (TRaster_Instance): Replace it with...
	(TWorker): This.
	Remove `count_table' and `memory'.
	Make `grays' a pointer.
	(TRaster): New structure.
	(count_table): New static array.
	(RAS_ARGS, RAS_ARG, RAS_VARS, RAS_VAR, FT_UNUSED_RASTER, cur_ras,
	Vertical_Gray_Sweep_Step, ft_black_new, ft_black_done,
	ft_black_set_mode, ft_black_render): Updated.
	(ft_black_init): Don't initialize `count_table'.
	(ft_black_reset): Use the render pool.  This saves about 6KB of
	heap space for each FT_Library instance.

	* src/smooth/ftgrays.c (TRaster): Replaced with...
	(TWorker): This.
	Remove `memory'.
	(TRaster): New structure.

	(RAS_ARG_, RAS_ARG, RAS_VAR_, RAS_VAR, ras, gray_render_line,
	gray_move_to, gray_line_to, gray_conic_to, gray_cubic_to,
	gray_render_span, gray_raster_render): Updated.
	(gray_raster_reset): Use the render pool.  This saves about 6KB of
	heap space for each FT_Library instance.

	* src/sfnt/sfobjs.c, src/sfnt/ttkern.c, src/sfnt/ttkern.h,
	src/sfnt/ttmtx.c, src/sfnt/ttsbit.c, src/sfnt/ttsbit.h,
	src/truetype/ttpload.c, include/freetype/config/ftoption.h: Remove
	FT_OPTIMIZE_MEMORY macro (and code for !FT_OPTIMIZE_MEMORY) since
	the optimization is no longer experimental.

	* src/pshinter/pshalgo.c (psh_glyph_interpolate_normal_points):
	Remove a typo that results in no hinting and a memory leak with some
	large Asian CFF fonts.

	* src/base/ftobjs.c (FT_Done_Library): Remove a subtle memory leak
	which happens when FT_Done_Library is called with still opened
	CFF_Faces in it.  We need to close all faces before destroying the
	modules, or else some bad things (memory leaks) may happen.

2007-01-02  Werner Lemberg  <[e-mail]>

	* src/gxvalid/gxvkern.c (gxv_kern_subtable_fmt0_pairs_validate):
	Remove compiler warning.

2007-01-02  David Turner  <[e-mail]>

	* src/sfnt/sfobjs.c: Add documentation comment.

2006-12-31  Masatake YAMATO  <[e-mail]>

	* src/gxvalid/gxvkern.c (gxv_kern_subtable_fmt0_pairs_validate): New
	function.
	Check uniqueness of the gid pairs.
	(gxv_kern_subtable_fmt0_validate): Move some code to
	`gxv_kern_subtable_fmt0_pairs_validate'.

2006-12-22  David Turner  <[e-mail]>

	* src/autofit/aflatin.c, src/truetype/ttgload.c: Remove compiler
	warnings.

	* builds/win32/visualc/freetype.vcproj: Add _CRT_SECURE_NO_DEPRECATE
	to avoid deprecation warnings with Visual C++ 8.

2006-12-16  Anders Kaseorg  <[e-mail]>

	* src/base/ftlcdfil.c (FT_Library_SetLcdFilter)
	[FT_FORCE_LIGHT_LCD_FILTER]: Fix typo.

2006-12-15  suzuki toshiya  <[e-mail]>

	* include/freetype/internal/services/svotval.h: Add `volatile' to
	sync with the modification by Jens Claudius on 2006-08-22; cf.
	  http://cvs.savannah.gnu.org/viewcvs/freetype/freetype2/src/otvalid/otvmod.c?r1=1.4&r2=1.5

2006-12-15  suzuki toshiya  <[e-mail]>

	* src/base/ftmac.c: Specialized for Mac OS X only.
	* builds/unix/ftconfig.in: Fixed for ppc64 missing Carbon framework.
	* builds/unix/configure.raw: Ditto. When explicit switches for
	FSSpec/FSRef/QuickDraw/ATS availability are given to configure,
	builds/mac/ftmac.c is used instead of default src/base/ftmac.c.

2006-12-15  suzuki toshiya  <[e-mail]>

	* builds/mac/ftmac.c: Copied src/base/ftmac.c for legacy system.
	* builds/mac/FreeType.m68k_cfm.make.txt: Fix to use builds/mac/ftmac.c
	instead of src/base/ftmac.c
	* builds/mac/FreeType.ppc_carbon.make.txt: Ditto.
	* builds/mac/FreeType.ppc_classic.make.txt: Ditto.
	* builds/mac/FreeType.m68k_far.make.txt: Ditto, and exclude gxvalid.c
	that cannot be built at present.

2006-12-15  suzuki toshiya  <[e-mail]>

	* src/base/ftobjs.c: Improvement of resource fork handler for
	POSIX, cf.
	  http://lists.gnu.org/archive/html/freetype-devel/2006-10/msg00025.html
	(Mac_Read_sfnt_Resource): Count only `sfnt' resource of suitcase font
	format or .dfont, to simulate the face index number counted by ftmac.c.
	(IsMacResource): Return the number of scalable faces correctly.

2006-12-10  Werner Lemberg  <[e-mail]>

	* builds/toplevel.mk (version): Protect against `distclean' target.

2006-12-09  Werner Lemberg  <[e-mail]>

	* builds/*/*def.mk, builds/*/detect.mk (CAT): Define to either `cat'
	or `type'.

	* builds/freetype.mk (version): Extracted from freetype.h, using
	GNU make's built-in string functions.
	(refdoc): Use $(version) instead of static version number.

2006-12-08  Werner Lemberg  <[e-mail]>

	* builds/toplevel.mk (dist): Extract version number from freetype.h.

2006-12-08  Vladimir Volovich  <[e-mail]>

	* src/tools/apinames (State): Remove final comma in structure -- xlc
	v5 under AIX 4.3 doesn't like this.

2006-12-07  David Turner  <[e-mail]>

	* src/autofit/afloader.c (af_loader_load_g): Small adjustment
	to the spacing of auto-fitted glyphs.  This only impacts rare
	cases (e.g., Arial Bold at rather small character sizes).

2006-12-03  Werner Lemberg  <[e-mail]>

	* src/sfnt/rules.mk (SFNT_DRV_SRC): Add ttsbit0.c.

2006-12-01  Werner Lemberg  <[e-mail]>

	* src/sfnt/sfobjs.c (tt_face_get_name): All Unicode strings are
	encoded in UTF-16BE.  Patch from Rajeev Pahuja <[e-mail]>.
	(tt_name_entry_ascii_from_ucs4): Removed.


	* include/freetype/ftxf86.h: Fix and extend comment so that it
	appears in the documentation.

	* include/freetype/ftchapters.h: Add `font_format' section.


	* src/tools/docmaker/tohtml.py (HtmlFormatter::index_exit): Add link
	to TOC in index page.

2006-11-28  David Turner  <[e-mail]>

	* src/smooth/ftgrays.c (gray_raster_render): Return 0 when we are
	trying to render into a zero-width/height bitmap, not an error code.

	* src/truetype/ttobjs.c (tt_face_init): Fix typo in previous patch.

	* src/smooth/ftgrays.c: Remove hard-coded error values; use FreeType
	ones instead.

	* src/autofit/afhints.c (af_glyph_hints_dump_segments): Remove unused
	variable.

2006-11-26  Pierre Hanser  <[e-mail]>

	* src/truetype/ttobjs.c (tt_face_init): Protect against NULL pointer.

2006-11-25  David Turner  <[e-mail]>

	* src/autofit/afhints.c	(af_glyph_hints_dump_points,
	af_glyph_hints_dump_segments, af_glyph_hints_dumpedges) [!AF_DEBUG]:
	Add stubs to link the `ftgrid' test program when debugging is
	disabled in the auto-hinter.

2006-11-23  David Turner  <[e-mail]>

	* src/autofit/afhints.c, src/autofit/afhints.h, src/autofit/aflatin.c,
	src/autofit/aftypes.h: Miscellaneous auto-hinter improvements.

	* src/autofit/afhints.c (af_glyph_hints_dump_segments) [AF_DEBUG]:
	Emit more sensible information.

	* src/autofit/afhints.h (AF_SegmentRec): Add `height' member.

	* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Improve
	rounding of blue values.
	(af_latin_hints_compute_segments): Hint segment heights.
	(af_latin_hints_link_segments): Reduce `len_score' value.
	(af_latin_hints_compute_edges): Increase `segment_length_threshold'
	value and use `height' member for comparisons.
	(af_latin_hint_edges): Extend logging message.
	Improve handling of remaining edges.

2006-11-22  Werner Lemberg  <[e-mail]>

	Fix Savannah bug #15553.

	* src/truetype/ttgload.c (tt_loader_init): Re-execute the CVT
	program after a change from mono to grayscaling (and vice versa).
	Use correct constant for comparison to get `exec->grayscale'.

2006-11-18  Werner Lemberg  <[e-mail]>

	Because FT_Load_Glyph expects CID values for CID-keyed fonts, the
	test for a valid glyph index must be deferred to the font drivers.
	This patch fixes Savannah bug #18301.

	* src/base/ftobjs.c (FT_Load_Glyph): Don't check `glyph_index'.
	* src/bdf/bdfdrivr.c (BDF_Glyph_Load), src/cff/cffgload.c
	(cff_slot_load), src/cid/cidgload.c (cid_slot_load_glyph),
	src/pcf/pcfdrivr.c (PCF_Glyph_Load), src/pfr/pfrobjs.c
	(pfr_slot_load), src/truetype/ttdriver.c (Load_Glyph),
	src/type1/t1gload.c (T1_Load_Glyph), src/winfonts/winfnt.c
	(FNT_Load_Glyph): Check validity of `glyph_index'.

2006-11-13  David Turner  <[e-mail]>

	* src/truetype/ttinterp.c (FIX_BYTECODE): Undefine.  The interpreter
	`enhancements' are still too buggy for general use.

	* src/base/ftlcdfil.c: Add support for FT_FORCE_LIGHT_LCD_FILTER and
	FT_FORCE_LEGACY_LCD_FILTER at compile time.  Define these macros
	when building the library to change the default LCD filter to be
	used.  This is only useful for experimentation.

	* include/freetype/ftlcdfil.h: Update documentation.

2006-11-10  David Turner  <[e-mail]>

	* src/smooth/ftsmooth.c: API change for the LCD
	filter.  The FT_LcdFilter value is an enumeration describing which
	filter to apply, with new values FT_LCD_FILTER_LIGHT and
	FT_LCD_FILTER_LEGACY (the latter implements the LibXft original
	algorithm which produces strong color fringes for everything
	except very-well hinted text).

	* include/freetype/ftlcdfil.h (FT_Library_SetLcdFilter): Change
	second parameter to an enum type.

	* src/base/ftlcdfil.c (USE_LEGACY): Define.
	(_ft_lcd_filter): Rename to...
	(_ft_lcd_filter_fir): This.
	Update parameters.
	(_ft_lcd_filter_legacy) [USE_LEGACY]: New filter function.
	(FT_Library_Set_LcdFilter): Update parameters.
	Handle new filter modes.

	* include/internal/ftobjs.h: Include FT_LCD_FILTER_H.
	(FT_Bitmap_LcdFilterFunc): Change third argument to `FT_Library'.
	(FT_LibraryRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Add filtering
	callback and update other fields.

	* src/smooth/ftsmooth.c (ft_smooth_render_generic)
	[FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Update.
	Other minor improvements.

	* src/autofit/aflatin.c: Various tiny improvements that drastically
	improve the handling of serif fonts and of LCD/LCD_V hinting modes.
	(af_latin_hints_compute_edges): Fix typo.
	(af_latin_compute_stem_width): Take better care of diagonal stems.

2006-11-09  David Turner  <[e-mail]>

	* src/pshinter/pshalgo.c (psh_glyph_compute_inflections): Fix
	typo which created a variable-used-before-initialized bug.

2006-11-07  Zhe Su  <[e-mail]>

	* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Handle vertical layout
	also.