changelog

winNT技术操作系统,国外开放的原代码和LIUX一样

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.

2006-11-03  Werner Lemberg  <[e-mail]>

	* src/base/ftcalc.c: Don't use `long long' but `FT_Int64'.

2006-11-02  David Turner  <[e-mail]>

	Add a few tweaks to better handle serif fonts.
	Add more debugging messages.

	* src/autofit/aflatin.c (af_latin_hints_compute_edges): Ignore
	segments that are less than 1.5 pixels high.  This gets rid of
	*many* corner cases with serifs.
	(af_latin_align_linked_edge): Add logging message.
	(af_latin_hint_edges): Use AF_HINTS_DO_BLUES.
	Add logging messages.
	Handle AF_EDGE_FLAG flag specially.

	* src/autofit/afmodule.c [AF_DEBUG]: Add _af_debug,
	_af_debug_disable_blue_hints, and _af_debug_hints variables.

	* src/autofit/aftypes.h (AF_LOG) [AF_DEBUG]: Use _af_debug.
	Update external declarations.
	(af_corner_orientation, af_corner_is_flat): Replaced by...

	* include/freetype/internal/ftcalc.h (ft_corner_orientation,
	ft_corner_is_flat): These declarations.

	* src/autofit/afangles.c (af_corner_orientation, af_corner_is_flat):
	Comment out.  Replaced by...

	* src/base/ftcalc.h (ft_corner_orientation, ft_corner_is_flat):
	These functions.  Update all callers.
	(FT_Add64) [!FT_LONG64]: Simplify.

	* src/autofit/afhints.c: Include FT_INTERNAL_CALC_H.
	(af_direction_compute): Add a missing FT_ABS call.  This bug caused
	production of garbage by missing lots of segments.

	* src/autofit/afhints.h (AF_HINTS_DO_BLUES): New macro.

	* src/autofit/afloader.c (af_loader_init, af_loader_done)
	[AF_DEBUG]: Set _af_debug_hints.


	* src/pshinter/pshalgo.c: Include FT_INTERNAL_CALC_H.
	(psh_corner_is_flat, psh_corner_orientation): Use ft_corner_is_flat
	and ft_corner_orientation.


	* src/gzip/inftrees.c (huft_build): Remove compiler warning.

2006-10-24  Werner Lemberg  <[e-mail]>

	* src/cff/cffload.c (cff_encoding_load): Remove unused variable.

	* src/base/ftobjs.c (FT_Select_Charmap): Disallow FT_ENCODING_NONE
	as argument.

2006-10-23  Zhe Su  <[e-mail]>

	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Re-implement to
	better deal with broken Asian fonts with strange glyphs, having
	self-intersections and other peculiarities.  The used algorithm is
	based on the nonzero winding rule.

2006-10-23  David Turner  <[e-mail]>

	Speed up the CFF font loader.  With some large CFF fonts,
	FT_Open_Face is now more than three times faster.

	* src/cff/cffload.c (cff_get_offset): Removed.
	(cff_new_index): Inline functionality of `cff_get_offset'.
	(cff_charset_compute_cids, cff_charset_free_cids): New functions.
	(cff_charset_done): Call `cff_charset_free_cids'.
	(cff_charset_load): Call `cff_charset_compute_cids'.
	(cff_encoding_load) <Populate>: Ditto, to replace inefficient loop.

	* src/sfnt/ttmtx.c (tt_face_load_hmtx): Replace calls to FT_GET_XXX
	with FT_NEXT_XXX.


	Speed up the Postscript hinter, with more than 100% speed increase
	on my machine.

	* src/pshinter/pshalgo.c (psh_corner_is_flat,
	psh_corner_orientation): New functions.
	(psh_glyph_compute_inflections): Merge loops for efficiency.
	Use `psh_corner_orientation'.
	(psh_glyph_init): Use `psh_corner_is_flat'.
	(psh_hint_table_find_strong_point): Renamed to...
	(psh_hint_table_find_strong_points): This.
	Rewrite, adding argument to handle all points at once.
	Update all callers.
	(PSH_MAX_STRONG_INTERNAL): New macro.
	(psh_glyph_interpolate_normal_points): Rewrite for efficiency.

2006-10-15  suzuki toshiya  <[e-mail]>

	* src/base/ftmac.c (FT_New_Face_From_FOND): Initialize variable
	`error' with FT_Err_Ok.

2006-10-14  suzuki toshiya  <[e-mail]>

	* docs/INSTALL.CROSS: New document file for cross-building.

	* builds/unix/configure.raw: Preliminary cross-building support.
	Find native C compiler and pass it by CC_BUILD, and
	find suffix for native executable and pass it by EXEEXT_BUILD.
	Also suffix for target executable is passed by EXEEXT.

	* builds/unix/unix-cc.in (CCraw_build, E_BUILD): New variables to
	build `apinames' which runs on building system.  They are set by
	CC_BUILD and EXEEXT_BUILD.

	* builds/exports.mk (APINAMES_EXE): Change the extension for
	apinames from the suffix for target (E) to that for building host
	(E_BUILD).

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

	* docs/INSTALL.UNX, docs/UPGRADE.UNX: Renamed to...
	* docs/INSTALL.UNIX, docs/UPGRADE.UNIX: This.  Update all documents
	which reference those files.

2006-10-12  suzuki toshiya  <[e-mail]>

	* builds/unix/configure.raw (FT2_EXTRA_LIBS): New variable.  It is
	embedded in freetype2.pc and freetype-config.  Use it to record
	Carbon dependency of MacOSX.

	* builds/unix/freetype2.in: Embed FT2_EXTRA_LIBS.

	* builds/unix/freetype-config.in: Ditto.

2006-10-11  Werner Lemberg  <[e-mail]>

	* devel/ftoption.h (FT_CONFIG_OPTION_SUBPIXEL_RENDERING): Define for
	development.

2006-10-03  Jens Claudius  <[e-mail]>

	* include/freetype/config/ftstdlib.h: Cast away volatileness from
	argument to ft_setjmp.

	* include/freetype/internal/ftvalid.h: Add comment that
	ft_validator_run must not be used.

2006-10-01  Werner Lemberg  <[e-mail]>

	* src/base/ftbase.c: Undo change from 2006-09-30.

	* src/base/rules.mk (BASE_SRC): Remove `ftlcdfil.c'.

2006-09-30  David Turner  <[e-mail]>

	* include/freetype/internal/ftobjs.h (FT_Face_InternalRec):
	s/unpatented_hinting/ignore_unpatented_hinter/.
	Update all callers.

	* src/base/ftobjs.c (FT_Load_Glyph): Refine the algorithm whether
	auto-hinting shall be used or not.

	* src/truetype/ttobjs.c (tt_face_init): Ditto.

2006-09-30  Werner Lemberg  <[e-mail]>

	* src/base/rules.mk (BASE_SRC): Remove `ftapi.c' (which is no longer
	in use).

	* src/base/ftbase.c: Include `ftlcdfil.c'.

2006-09-29  Werner Lemberg  <[e-mail]>

	* src/sfnt/ttcmap.c (tt_cmap4_char_map_binary): Fix algorithm for
	overlapping segments.  Bug reported by Stefan Koch.

2006-09-28  David Turner  <[e-mail]>

	Fix a bug in the automatic unpatented hinting support which prevents
	normal bytecode hinting to work properly.

	* include/freetype/internal/ftobjs.h (FT_Face_InternalRec):
	s/force_autohint/unpatented_hinting/.  Update all callers.

	* src/base/ftobjs.c (FT_Load_Glyph): Updated code.

	* src/autofit/aftypes.h (AF_DEBUG): Undefine to get rid of traces.

2006-09-27  David Turner  <[e-mail]>

	* include/freetype/freetype.h (FT_FREETYPE_PATCH): Set to 2.


	Add a new API to support color filtering of subpixel glyph bitmaps.
	In a default build, the function `FT_Library_SetLcdFilter' returns
	`FT_Err_Unimplemented_Feature'; you need to #define
	FT_CONFIG_OPTION_SUBPIXEL_RENDERING in ftoption.h to compile the
	real implementation.

	* include/freetype/ftlcdfil.h, src/base/ftlcdfil.c: New files.

	* include/freetype/internal/ftobjs.h (FT_Bitmap_LcdFilterFunc): New
	typedef.
	(FT_LibraryRec) [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: New members
	`lcd_filter_weights' and `lcd_filter'.

	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Remove arguments
	`hmul' and `vmul'.

	Handle subpixel rendering.
	Simplify function.
	(ft_smooth_render_lcd): Use `FT_RENDER_MODE_LCD'.
	(ft_smooth_render_lcd_v): Use `FT_RENDER_MODE_LCD_V'.

	* include/freetype/config/ftheader.h (FT_LCD_FILTER_H): New macro,
	pointing to <freetype/ftlcdfil.h>.