font to have no `head' table if tables `SING' and `META' are
present; this is to support `SING Glyphlet'.
`SING Glyphlet' is an extension to OpenType developed by Adobe
primarily to facilitate adding supplemental glyphs to an OpenType
font (with emphasis on, but not necessariy limited to, gaiji to a
CJK font). A SING Glyphlet Font is an OpenType font that contains
the outline(s), either in a `glyf' or `CFF' table, for a glyph;
`cmap', `BASE', and `GSUB' tables are present with the same format
and functionaliy as a regular OpenType font; there are no `name',
`head', `OS/2', and `post' tables; there are two new tables, `SING'
which contains details about the glyphlet, and `META' which contains
metadata.
Further information on the SING Glyphlet format can be found at:
http://www.adobe.com/products/indesign/sing_gaiji.html
* freetype2/include/freetype/ttags.h (TTAG_SING, TTAG_META): New
macros for the OpenType tables `SING' and `META'. These two tables
are used in SING Glyphlet Format fonts.
a preliminary section with some explanations about user allocation.
* src/tools/docmaker/tohtml.py (HtmlFormatter.section_enter):
Don't abort if there are no data types, functions, etc., in a
section.
Print synopsis only if we have a data type, function, etc.
* docs/INSTALL.ANY, docs/INSTALL, docs/INSTALL.UNX, docs/CUSTOMIZE,
docs/INSTALL.GNU, docs/TRUETYPE, docs/DEBUG, docs/UPGRADE.UNX,
docs/VERSION.DLL, docs/formats.txt: Revised, formatted.
ft_glyphslot_grid_fit_metrics.
* src/truetype/ttgload.c (compute_glyph_metrics): Use
ft_glyphslot_grid_fit_metrics.
* src/cff/cffgload.c (cff_slot_load), src/cid/cidgload.c
(cid_slot_load_glyph), src/type1/t1gload.c (T1_Load_Glyph): Use
ft_glyphslot_grid_fit_metrics.
FT_Outline_Get_CBox is called twice.
* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Modify metrics to more
reasonable values when emboldening outline glyphs. The theoretic
ones are unrealistic.
halved.
* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Change the default
strength.
Don't increase slot->advance.y.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 2.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.ac (version_info): Set to 9:9:3.
Currently, we are still binary compatible.
* builds/win32/visualc/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj: s/219/2110/, s/2.1.9/2.1.10/.
* builds/freetype.mk (refdoc), README, Jamfile (RefDoc):
s/2.1.9/2.1.10/.
* docs/CHANGES, docs/VERSION.DLL: Updated.
* ChangeLog: Split off older entries into...
* ChangeLog.20, ChangeLog.21: These new files.
The next release will be 2.2.0, so don't worry about source code
backwards compatibility.
* include/freetype/ftimage.h (FT_Outline_MoveToFunc,
FT_Outline_LineToFunc, FT_Outline_ConicToFunc,
FT_Outline_CubicToFunc, FT_SpanFunc, FT_Raster_RenderFunc),
include/freetype/ftrender.h (FT_Glyph_TransformFunc,
FT_Renderer_RenderFunc, FT_Renderer_TransformFunc): Decorate
parameters with `const' where appropriate.
* src/sfnt/ttsbit.c (tt_face_load_sbit_image): Compute vertBearingY
to make glyphs centered vertically.
* src/truetype/ttgload.c (compute_glyph_metrics): Compute
vertBearingY to make glyphs centered vertically.
Fix some bugs in vertical metrics:
. loader->pp3.y and loader->pp4.y are in 26.6 format, not in font
units.
. As we use the glyph's cbox to calculate the top bearing now
there iss no need to adjust `top'.
* src/otvalid/otvcommn.h (OTV_OPTIONAL_TABLE): Use FT_UShort to be
in sync with OTV_OPTIONAL_OFFSET. Reported by YAMATO Masatake.
* docs/release: Update.
documentation improvements.
* include/freetype/ftoutln.h (FT_Outline_Embolden): Fix typos.
* src/base/ftbitmap.c (FT_Bitmap_Embolden): Add support for bitmap
of pixel_mode FT_PIXEL_MODE_GRAY2 or FT_PIXEL_MODE_GRAY4.
If xstr is larger than 8 and bitmap is of pixel_mode
FT_PIXEL_MODE_MONO, set xstr to 8 instead of returning error.
* include/freetype/ftbitmap.h (FT_Bitmap_Embolden): New declaration.
* include/freetype/ftoutln.h (FT_Outline_Embolden): New declaration.
* src/base/ftbitmap.c (ft_bitmap_assure_buffer): New auxiliary
function.
(FT_Bitmap_Embolden): New function.
* src/base/ftoutln.c (FT_Outline_Embolden): New function.
* src/base/ftsynth.c: Don't include FT_INTERNAL_CALC_H and
FT_TRIGONOMETRY_H but FT_BITMAP_H.
(FT_GlyphSlot_Embolden): Use FT_Outline_Embolden or
FT_Bitmap_Embolden.
(CFLAGS), builds/compiler/gcc.mk (CFLAGS): Remove
-fno-strict-aliasing.
Say you have `(Foo*)x' and want to assign, pass, or return it as
`(Bar*)'. If you simply say `x' or `(Bar*)x', then the C compiler
would warn you that type casting incompatible pointer types breaks
strict-aliasing. The solution is to cast to `(void*)' instead which
is the generic pointer type, so the compiler knows that it should
make no strict-aliasing assumption on `x'. But the problem with
`(void*)x' is that seems like in C++, unlike C, `void*' is not a
generic pointer type and assigning `void*' to `Bar*' without a cast
causes an error. The solution is to cast to `Bar*' too, with
`(Bar*)(void*)x' as the result -- this is what the patch does.
* include/freetype/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP),
include/freetype/cache/ftcmru.h (FTC_MRULIST_LOOKUP_CMP): Remove
cast on lvalue, use a temporary pointer instead.
Cast temporarily to (void*) to not break strict aliasing.
* include/freetype/internal/ftmemory.h (FT_MEM_ALLOC,
FT_MEM_REALLOC, FT_MEM_QALLOC, FT_MEM_QREALLOC, FT_MEM_FREE),
src/base/ftglyph.c (FT_Glyph_To_Bitmap): Cast temporarily to (void*)
to not break strict aliasing.
* src/base/ftinit.c (FT_USE_MODULE): Fix wrong type information.
* builds/unix/configure.ac (XX_CFLAGS): Remove -fno-strict-aliasing.
* src/sfnt/rules.mk (SFNT_DRV_SRC): Don't include ttsbit0.c --
it is currently loaded from ttsbit.c.
Other formatting.
* src/base/ftbitmap.c: Don't include FT_FREETYPE_H and FT_IMAGE_H
but FT_BITMAP_H.
(FT_Bitmap_Copy): New function (from ftglyph.c).
* include/freetype/ftbitmap.h (FT_Bitmap_Copy): New public
definition.
* src/base/ftglyph.c: Include FT_BITMAP_H.
(ft_bitmap_copy): Move to ftbitmap.c.
(ft_bitmap_glyph_init): Remove `memory' variable.
Create new bitmap object if FT_GLYPH_OWN_BITMAP isn't set.
(ft_bitmap_glyph_copy): Use FT_Bitmap_Copy.
(ft_bitmap_glyph_done): Use FT_Bitmap_Done.
(ft_outline_glyph_init): Use FT_Outline_Copy.
* src/base/ftoutln.c (FT_Outline_Copy): Handle source == target.
(FT_Outline_Done_Internal): Check for valid `memory' pointer.
(FT_Outline_Translate, FT_Outline_Reverse, FT_Outline_Render,
FT_Outline_Transform): Check for valid `outline' pointer.
* src/base/ftobjs.c (FT_New_GlyphSlot): Prepend glyph slot to
face->glyph, otherwise a new second glyph slot cannot be created.
(FT_Done_GlyphSlot): Fix memory leak.
(FT_Open_Face): Updated -- face->glyph is already managed by
FT_New_GlyphSlot.
* src/type42/t42objs.c (T42_GlyphSlot_Done): Updated.
Exclude debug info for `Release' versions to reduce library size.
* src/base/ftobjs.c (FT_Open_Face): Make it work as documented, this
is, ignore `aface' completely if face_index < 0. Reported by David
Osborn <spam@habitualhiatus.com>.
* include/freetype/ftimage.h (FT_Outline_MoveToFunc,
FT_Outline_LineTo_Func, FT_Outline_ConicToFunc,
FT_Outline_CubicToFunc), src/smooth/ftgrays.c (gray_render_conic,
gray_render_cubic, gray_move_to, gray_line_to, gray_conic_to,
gray_cubic_to, gray_render_span, gray_sweep): Decorate parameters
with `const' where appropriate.
* docs/TODO: Add some bugs which should be fixed.
* include/freetype/internal/tttypes.h (TT_FaceRec): Add `glyf_len'
element.
* src/truetype/ttpload.c (tt_face_load_loca): Get length of `glyf'
table.
(tt_face_get_location): Fix computation of `asize' for malformed
`loca' entries.
* src/type1/t1parse.c (T1_New_Parser), src/type42/t42parse.c
(t42_parser_init): modifying functions to check the font header before
allocating anything on the heap.
* internal/freetype/ftmemory.h: introducing the new macros FT_ARRAY_MAX
and FT_ARRAY_CHECK
* src/pcf/pcfread.c, src/pcf/pcfutil.c: minor fixes and simplifications.
try to protect the PCF driver from doing stupid things with broken fonts.
used to reduce the amount of heap size required to only test wether
we're dealing with a BDF font (the old code allocated 64 Kb right
before any test).
* src/lzw/ftlzw.c (FT_Stream_OpenLZW): modified the function to check
the LZW header before doing anything else. This helps avoid un-necessary
heap allocations (400 Kb of heap memory for the LZW decoder ! Oh my !)
* src/gzip/ftgzip.c (FT_Stream_OpenGZip): ditto for the .gz decoder,
though the code savings is smaller.
Fix serious typo which prevented correct TT rendering.
* include/freetype/internal/ftmemory.h: Undo change from 2005-03-03.
To suppress warnings it is sufficient to use `-fno-strict-aliasing'.
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
according to decreasing maximum cumulative allocations.
* include/freetype/internal/tttypes.h, src/sfnt/ttsbit.c, src/sfnt/ttsbit0.c,
src/truetype/ttobjs.c, src/cff/cffobjs.c, src/sfnt/sfobjs.c: implementing new
heap-optimized embedded bitmap loader. This one also fixes bug #12107
* src/sfnt/sfobjs.c: fixed bug that prevented loading SFNT fonts without
a 'kern' table.
drastically reduce the heap usage of FreeType, especially in the case
of memory-mapped files. The idea is to avoid loading and decoding tables
in the heap, and instead access the raw data whenever possible (i.e.
when it doesn't compromise performance).
This had several impacts: first, opening vera.ttf uses a ridiculous amount
of memory (when the FT_Library footprint is accounted for), until you start
loading glyphs. Even then, you'll save at least 20 Kb compared to the non
optimized case. performance of various operations, including open/close
has also been dramatically improved.
More optimisations to come. The auto-hinter eats memory like crazy? This
must be stopped...
Werner Lemberg