src/base/ftlcdfilt.c, src/smooth/ftsmooth.c: API change for
the LCD filter, the FT_LcdFilter value is a enum describing
which filter to apply, new values FT_LCD_FILTER_LIGHT and
FT_LCD_FILTER_LEGACY (the latter implements the LibXft original
algorithm which produces incredible color fringes for everything
except very-well hinted text)
* src/autofit/aflatin.c: various tiny improvements that drastically
improve the handling of serif fonts and of LCD/LCD_V hinting modes.
src/autofit/afcjk.c, src/autofit/afhints.c, src/autofit/aflatin.c,
src/autofit/aftypes.h, src/base/ftcalc.c, src/base/ftoutln.c,
src/gzip/ftgzip.c, src/psaux/psconv.c, src/truetype/ttgload.c,
src/type1/t1gload.c:
this is a major patch used to drastically improve the performance
of loading glyphs. This both speeds up loading the glypn vector
themselves and the auto-fitter.
note that we've started using inline assembler with GCC to
implement FT_MulFix, given that this function is so damn
important for the engine's performance.
the resulting speed-up is about 25%.
* 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'.
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 0 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.
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.
src/autofit/aftypes.h, src/autofit/afloader.c, src/autofit/autofit.c:
adding experimental implementation of "warp hinting" (new hinting
algorithm for gray-level and LCD rendering). It is disabled by default,
you need to #define AF_USE_WARPER in aftypes.h to enable it.
implementation of the LIGHT hinting mode to completely disable
horizontal hinting. This is an experimental effort to integrate
David Chester's latest patch without fucking the other hinting
modes as well.
Note that this doesn't force auto-hinting for all fonts however.
Blaskey).
* src/sfnt/ttcmap.h (TT_CMap): Add member `unsorted'.
* src/sfnt/ttcmac.c: Use SFNT_Err_Ok where appropriate.
(tt_cmap0_validate, tt_cmap2_validate, tt_cmap6_validate,
tt_cmap8_validate, tt_cmap10_validate, tt_cmap12_validate): Use
`FT_Error' as return type.
(tt_cmap4_validate): Use `FT_Error' as return type.
Return error code for unsorted cmap.
(tt_cmap4_char_index, tt_cmap4_char_next): Use old code for unsorted
cmaps.
(tt_face_build_cmaps): Set `unsorted' variable in cmap.
Minor formatting.
* src/autofit/*: Add copyright messages.
Formatting.
* src/autofit/afhints.c (af_glyph_hints_done): Don't use
`AF_Dimension' but `int' for loop counter.
* src/autofit/aflatin.c (af_latin_metrics_init_widths): Don't use
`AF_Dimension' but `int' for loop counter.
Use proper enumeration value for `render_mode'.
(af_latin_metrics_scale_dim): Don't shadow variables.
(af_latin_hints_compute_segments): Use proper cast for `major_dir'
and `segment_dir'.
(af_latin_align_linked_edge, af_latin_hint_edges): Fix arguments of call to
`af_latin_compute_stem_width'.
(af_latin_hints_apply): Don't use `AF_Dimension' but `int' for loop
counter.
* src/base/ftdbgmem.c (ft_mem_table_get_source, FT_DumpMemory): Use
proper cast for memory allocation.
* src/cff/cffdrivr.c (cff_get_kerning): Use proper cast for
initialization of `sfnt'.
* src/sfnt/sfdriver.c: Include `ttkern.h'.
* src/sfnt/ttkern.c (tt_face_get_kerning): Don't shadow variables.
* src/truetype/ttgload.c: Include `ttpload.h'.
* src/truetype/ttpload.c (tt_face_load_loca) [FT_OPTIMIZE_MEMORY]:
Remove redundant variable.
various bug-fixes and drastic heap usage reduction improvements.
* include/freetype/config/ftmodule.h: the auto-fitter is now the
only supported auto-hinting module
* include/freetype/config/ftstdlib.h: adding FT_INT_MAX definition
now seems to be 100% equivalent to the auto-hinter, while being
about 2% faster (which proves that script-specific algorithm
selection isn't a performance problem).
to test it, change "autohint" to "autofit" in
<freetype/config/ftmodule.h> and recompile.
a few more testing is needed before making this the official
auto-hinting module
* include/freetype/internal/tttypes.h (TT_LoaderRec): Add
`top_bearing', `vadvance', `pp3, and `pp4'.
* src/autofit/afloader.c (af_loader_load_g): Handle two more points.
* src/autohint/ahhint.c (ah_hinter_load): Handle two more points.
* src/truetype/ttgload.c (Get_VMetrics): New function.
(TT_Load_Simple_Glyph, TT_Process_Simple_Glyph): Handle two more
points.
(load_truetype_glyph): Use Get_VMetrics.
Handle two more points.
(compute_glyph_metrics): Thanks to vertical phantom points we now
can always compute `advance_height' and `top_bearing'.
* src/truetype/ttobjs.h (TT_SubglyphRec): Add vertical phantom
points.
* src/autohint/ahglyph.c (ah_outline_load): Fix allocation of
`news'.
Converting some files to Unix end-of-line convention.
* src/cache/*, include/freetype/cache/*: fixing a bug after heavy
testing. The current sources are now "release candidates" for the
final version of the cache sub-system
* Jamfile: updating "refdoc" target, and adding "autohint" to the
list of modules to build. Both the autohinter and autofitter will be
built by default. But which one will be used is determined by
the content of "ftmodule.h"
* src/autofit/*: much updates, but the code is still buggy as hell.
Aargh..
"auto-fitter"
* include/freetype/ftoutln.h, src/base/ftoutln.c: adding the
definition of FT_Outline_Get_Orientation, used to compute the
fill orientation of a given glyph outline.
* include/freetype/internal/ftserv.h: fixed trivial bug which
could crashed the font engine when a cached service pointer was
retrieved with FT_FACE_LOOKUP_SERVICE
Werner Lemberg