I. IMPORTANT BUG FIXES
- Various integer overflows have been fixed.
- PFB fonts with MacOS resource fork weren't handled correctly on
non-MacOS platforms.
- The PCF font loarder has been seriously hardened against malformed
font files.
II. IMPORTANT CHANGES
- the unpatented hinter is now part of the default build of the
library, and we added code to automatically support "tricky"
fonts that need it.
what this means is that FreeType should "just work" with certain
Asian fonts, like MingLiu, which cannot properly load without a
bytecode interpreter, but fortunately do not use any of the
patented bytecode opcodes.
Note that the API didn't change, so you can still force
unpatented hinting with a special parameter to FT_Open_Face
as well.
if you're an embedded systems developer, you might want to
*disable* the feature to save code space by undefining
TT_CONFIG_OPTION_UNPATENTED_HINTING in ftoption.h.
- LCD-optimized rendering is now disabled in all default builds
of the library, mainly due to patent reasons. For more information
see:
http://lists.gnu.org/archive/html/freetype/2006-09/msg00064.html
a new configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING has
been introduced in ftoption.h; manually define it in this file
if you want to re-enable the feature.
the change only affects the implementation, not the FreeType API.
This means that clients don't need to be modified, because the
library still generates LCD decimated bitmaps, but with the added
constraint that R=G=B on each triplet.
- Some computation bugs in the TrueType bytecode interpreter were found,
which allow us to get rid of very subtle and rare differences we had
with the Windows renderer.
III. MISCELLANEOUS
- TrueType glyph loading is now about 25% faster.
- the anti-aliased rasterizer has been optimized and is now 15% to 25%
percent faster than the previous one, depending on content
- the Type 1 loader has been improved; as an example, it now skips
over top-level dictionaries properly
======================================================================
Fix miscellaneous compiler warnings.
* freetype2/include/freetype/internal/ftobjs.h: close
comment with `*/' to avoid `/* in comment' compiler warning.
* freetype2/src/base/ftdbgmem.c (ft_mem_table_get_source): Turn
cast `(FT_UInt32)(void*)' into `(FT_UInt32)(FT_PtrDist)(void*)'
since on 64-bit platforms void* is larger than FT_UInt32.
* freetype2/src/base/ftobjs.c (t_validator_error): cast
away volatileness of argument to ft_longjmp. Spotted by
Werner `Putzfrau' Lemberg.
* freetype2/src/bdf/bdflib.c (bdf_load_font): initialize
local variable `lineno'.
* freetype2/src/gxvalid/gxvmod.c (classic_kern_validate):
mark local variable `error' volatile.
Fix for previous commit, which caused many compiler warnings/errors
about addresses of volatile objects passed as function arguments
as non-volatile pointers.
* freetype2/include/freetype/internal/ftvalid.h: Make
FT_Validator typedef a pointer to a volatile object.
* freetype2/src/gxvalid/gxvmod.c (gxv_load_table): Make function
argument `table' a pointer to a volatile object.
* freetype2/src/otvalid/otvmod.c (otv_load_table): Make function
argument `table' a pointer to a volatile object.
include/freetype/internal/tttypes.h, src/base/ftgloadr.c,
src/base/ftobjs.c, src/truetype/ttgload.c, src/truetype/ttinterp.c,
src/truetype/ttobjs.c: improvements to native TrueType hinting,
this is a first try, controlled by the FIX_BYTECODE macro in
src/truetype/ttinterp.c
add T1_TOKEN_TYPE_KEY. (struct T1_FieldRec_) add `dict'. Add macros
T1_FIELD_DICT_FONTDICT and T1_FIELD_DICT_PRIVATE. Change T1_NEW_XXX and
T1_FIELD_XXX macros to take the dictionary where the PS keywords is
expected as an additional argument.
* freetype2/src/cid/cidload.c: (T1_FieldRec): Adjust invocations
of T1_FIELD_XXX.
* freetype2/src/cid/cidtoken.h: Adjust invocations of T1_FIELD_XXX.
* freetype2/src/psaux/psobjs.c: Add macro FT_COMPONENT for tracing.
(ps_parser_to_token): Report a PostScript key as T1_TOKEN_TYPE_KEY
instead as T1_TOKEN_TYPE_ANY. (ps_parser_load_field): Make sure a token
that should be a string or name is a string or name indeed. Avoid
memory leak if a keyword has been already encountered and its value
is overwritten.
* freetype2/src/type1/t1load.c: (T1_FieldRec): Adjust invocations of
T1_FIELD_XXX. (parse_dict): Ignore keywords that occur in the wrong
dictionary (e.g., in Private instead of FontDict).
* freetype2/src/type1/t1tokens.h: Adjust invocations of T1_FIELD_XXX.
`t1_decoder_init' and let the caller of `t1_decoder_init' take care
of it.
Call the finisher for T1_Decoder in `cid_face_compute_max_advance'
and `T1_Compute_Max_Advance'.
* freetype2/include/freetype/internal/psaux.h (T1_DecoderRec):
Remove field `face', add `len_buildchar'.
* freetype2/include/freetype/internal/t1types.h (T1_FaceRec): Add
field `buildchar'.
* freetype2/src/cid/cidgload.c (cid_face_compute_max_advance): Call
finisher for T1_Decoder.
(cid_slot_load_glyph): Do not ignore failure when initializing the
T1_Decoder.
* freetype2/src/psaux/t1decode.c (t1_decoder_parse_charstrings):
Updated.
(t1_decoder_init): Remove initialization of fields `buildchar' and
`len_buildchar'.
(t1_decoder_done): Remove deallocation of field `buildchar'.
* freetype/src/type1/t1gload.c (T1_Compute_Max_Advance): Initialize
T1_Decoder's `buildchar' and `len_buildchar'; call finisher for
T1_Decoder.
(T1_Load_Glyph): Initialize T1_Decoder's `buildchar' and
`len_buildchar'; make sure to call finisher for T1_Decoder even in
case of error.
* freetype2/src/type1/t1load.c (T1_Open_Face): Allocate new field
`buildchar' of T1_FaceRec.
* freetype2/src/type1/t1objs.c (T1_Face_Done): Free new field
`buildchar' of T1_FaceRec.
IS_PS_NEWLINE, IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT,
IS_PS_XDIGIT, and IS_PS_BASE85 (from freetype2/src/psaux/psconv.h).
(T1_FieldLocation): Add T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE, and T1_FIELD_LOCATION_BLEND.
(T1_DecoderRec): New fields `buildchar' and `face'.
(IS_PS_TOKEN): New macro.
* freetype2/include/freetype/internal/t1types.h (T1_FaceRec): New
fields `ndv_idx', `cdv_idx', and `len_buildchar'.
* freetype2/include/freetype/t1tables.h (PS_BlendRec): New fields
`default_design_vector' and `num_default_design_vector'.
* freetype2/src/psaux/psconv.h: Move macros IS_PS_NEWLINE,
IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT, IS_PS_XDIGIT,
and IS_PS_BASE85 to freetype2/include/freetype/internal/psaux.h.
* freetype2/src/psaux/psobjs.c (ps_parser_to_token_array): Allow
`token' argument to be NULL if we want only to count the number of
tokens.
(ps_tocoordarray): Allow `coords' argument to be NULL if we just
want to skip the array.
(ps_tofixedarray): Allow `values' argument to be NULL if we just
want to skip the array.
* freetype2/src/psaux/t1decode.c (t1_decoder_parse_charstrings): Add
support for (partially commented out) othersubrs 19-25, 27, and 28.
(t1_decoder_init): Initialize new fields `face' and `buildchar'.
(t1_decoder_done): Release new field `buildchar'.
* freetype2/src/type1/t1load.c (parse_buildchar, parse_private): New
functions.
(t1_keywords): Register them.
(t1_allocate_blend): Updated.
(t1_load_keyword): Handle field types T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE and T1_FIELD_LOCATION_BLEND.
(parse_dict): Remove `keyword_flags' argument.
Use new macro IS_PS_TOKEN.
Changed function so that later PostScript definitions override
earlier ones.
(t1_init_loader): Initialize new field `keywords_encountered'.
(T1_Open_Face): Initialize new fields `ndv_idx', `cdv_idx', and
`len_buildchar'.
Remove `keywords_flags'.
* freetype2/src/type1/t1load.h (T1_LoaderRect): New field
`keywords_encountered'.
(T1_PRIVATE, T1_FONTDIR_AFTER_PRIVATE): New macros.
* freetype2/src/type1/t1tokens.h [!T1_CONFIG_OPTION_NO_MM_SUPPORT]:
New entries for parsing /NDV, /CDV, and /DesignVector.
src/psaux/t1cmap.c, src/psnames/psmodule.c: Fix for the memory
leak described in bug #16759.
We change 'ps_unicodes_init' so that it also takes a 'free_glyph_name'
callback to release the glyph names returned by 'get_glyph_name'
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%.
boundary markers.
* src/tools/docmaker/content.py (re_field): Allow `.' in field names
(but not at the beginning or end).
* include/freetype/*: Many minor documentation improvements (adding
links, spelling errors, etc.).
* include/freetype/*: s/scale/scaling value/ where appropriate.
Many other minor documentation improvements.
* src/tools/docmaker/sources.py (re_italic, re_bold): Handle
trailing punctuation.
* src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_word): Add
warning message for undefined cross references.
Update handling of re_italic and re_bold.
src/base/ftmac.c, src/base/ftrfork.c, src/lzw/ftzopen.c,
src/raster/ftrend1.c, src/sfnt/ttpost.c, src/truetype/ttgxvar.c,
src/type42/t42parse.c, src/winfonts/winfnt.c: hardening the code
against out-of-bounds conditions when allocating arrays. This is
for the cases where FT_NEW_ARRAY and FT_RENEW_ARRAY are not used
already. Introducing the new FT_ALLOC_MULT and FT_REALLOC_MULT
macros.
include/freetype/internal/ftmemory.h, src/base/ftdbgmem.c,
src/base/ftutil.c: udpating the memory management functions and
macros to safely deal with array size buffer overflows, this
corresponds to attemps to allocate arrays that are too large. For
an example, consider the following code:
count = read_uint32_from_file();
array = malloc( sizeof(Item) * count );
for ( nn = 0; nn < count; nn++ )
array[nn] = read_item_from_file();
if 'count' is larger than FT_UINT_MAX/sizeof(Item), the multiplication
will overflow and the array allocated will be smaller than the data
read from the file. In this case, the heap will be trashed, and this
can be used as a denial-of-service, or make the engine crash later.
the FT_ARRAY_NEW and FT_ARRAY_RENEW macro now check that the new
count is no more than FT_INT_MAX/item_size, otherwise, a new error,
named 'FT_Err_Array_Too_Large' will be returned.
note that the memory debugger now works again when FT_DEBUG_MEMORY
is defined, and FT_STRICT_ALIASING has disappeared, the corresponding
code being now the default.
msn2@bidyut.com.
* include/freetype/config/ftstdlib.h (FT_CHAR_BIT, FT_FILE,
ft_fopen, ft_fclose, ft_fseek, ft_ftell, ft_fread, ft_smalloc,
ft_scalloc, ft_srealloc, ft_sfree, ft_labs): New wrapper macros for
C library functions. Update all users accordingly (and catch some
other places where the C library function was used instead of the
wrapper functions).
* src/base/ftsystem.c: Don't include stdio.h and stdlib.h.
* src/gzip/zutil.h [MSDOS && !(__TURBOC__ || __BORLANDC__)]: Don't
include malloc.h.
include/freetype/cache/ftccmap.h,
include/freetype/cache/ftcglyph.h
include/freetype/cache/ftcimage.h
include/freetype/cache/ftcmanag.h
include/freetype/cache/ftcmru.h
include/freetype/cache/ftcsbits.h:
removing these header files from the public include directory.
* include/freetype/config/ftheader.h:
changing the definition of FT_CACHE_INTERNAL_XXX_H macros to
redirect to FT_CACHE_H instead
* src/cache/ftcbasic.c, src/cache/ftccache.c, src/cache/ftccache.h,
src/cache/ftccback.h, src/cache/ftccmap.c, src/cache/ftcglyph.c,
src/cache/ftcglyph.h, src/cache/ftcimage.c, src/cache/ftcimage.h,
src/cache/ftcmanag.c, src/cache/ftcmanag.h, src/cache/ftcmru.c,
src/cache/ftcmru.h, src/cache/ftcsbits.c, src/cache/ftcsbits.h:
modifications to prevent using the FT_CACHE_INTERNAL_XXX_H macros,
and grab the headers in 'src/cache' instead (see below).
src/base/ftobjs.c, src/base/ftutil.c, src/cff/cffobjs.c,
src/psaux/afmparse.c, src/sfnt/ttbdf.c, src/tools/apinames.c,
src/truetype/ttdriver.c:
solved compiler warnings as well as C++ compilation problems
documentation.
* include/freetype/ftsynth.h (FT_GlyphSlot_Own_Bitmap),
src/base/ftsynth.c (FT_GlyphSlot_Own_Bitmap): New function to make
sure a glyph slot owns its bitmap. It is also marked experimental and
due to change.
(FT_GlyphSlot_Embolden): Undo the last change. It turns out rendering
the outline confuses some applications.
`width' and `height' to `FT_Long'.
(enum FT_Size_Request_Type), src/base/ftobjs.c (FT_Request_Metrics):
New request type `FT_SIZE_REQUEST_TYPE_SCALES' to specify the scales
directly.
`FT_ORIENTATION_NONE'.
* src/base/ftoutln.c (FT_OUTLINE_GET_CONTOUR, ft_contour_has,
ft_contour_enclosed, ft_outline_get_orientation): Another version of
`FT_Outline_Get_Orientation'. This version differs from the public
one in that each part (contour not enclosed in another contour) of the
outline is checked for orientation.
(FT_Outline_Embolden): Use `ft_outline_get_orientation'.
* src/base/ftsynth.c (FT_GlyphSlot_Embolden): Render the outline and
use bitmap's embolden routine when the outline one failed.
include/internal/services/svtteng.h, src/base/ftobjs.c,
src/truetype/ttdriver.c:
adding a new API named FT_Get_TrueType_Engine_Type to determine
wether we have a patented, unpatented or unimplemented TrueType
bytecode interpreter.
the FT_Get_Module_Flags API was removed consequently.
src/sfnt/ttsbit.h, src/sfnt/ttsbit.c: moving the definition
of 'set_sbit_strike' and 'load_sbit_metrics' to their 2.1.8
location. This is used to support binary compatibility with
the X.Org server's libXfont library.
note that this disables memory optimizations for the embedded
bitmap loader.Sigh....
anymore, this is used to ensure that all FT_BASE internal
functions are available for dynamic linking
* include/freetype/ftcache.h, src/cache/ftcbasic.c,
src/cache/ftccmap.c: try to revive old functions of the
cache sub-system. We also try to support FTC_ImageCache_Lookup
and FTC_ImageCache_SBit with legacy signatures through a gross
hack (hope it works)
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.
* 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'.
Pretty trace messages.
* 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_): 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.
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.
directory (offset table and table directory) as a normal table like
the others. This also means that TTC is 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.
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: Metrics-related tables' loading
and parsing code is moved 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' splitted 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.
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.
sufficient to modify a single file, `modules.cfg', to control the
inclusion of modules and base extension files.
This change also fixes the creation of ftmodule.h; it now depends on
`modules.cfg' and thus is rebuilt only if necessary.
Finally, a version of `ftoption.h' in OBJ_DIR is preferred over the
default location.
* modules.cfg: New file.
* builds/freetype.mk: Don't include `modules.mk'.
Include all `rules.mk' files as specified in `modules.cfg'.
(FTOPTION_FLAG, FTOPTION_H): New variables.
(FT_CFLAGS): Add macro definition for FT_CONFIG_MODULES_H.
Add FTOPTION_FLAG.
($(FT_INIT_OBJ)): Don't use FT_MODULE_LIST.
(CONFIG_H): Add FTMODULE_H and FTOPTION_H.
(INCLUDES): Add DEVEL_DIR.
(INCLUDE_FLAGS, FTSYS_SRC, FTSYS_OBJ, FTDEBUG_SRC, FTDEBUG_OBJ,
OBJ_M, OBJ_S): Use `:=', not `='.
(remove_ftmodule_h): New phony target to delete `ftmodule.h'.
(distclean): Add remove_ftmodule_h.
* builds/modules.mk: (MODULE_LIST): Removed.
(make_module_list, clean_module_list): Replace targets
with...
(FTMODULE_H_INIT, FTMODULE_H_CREATE, FTMODULE_H_DONE): New
variables. Reason for the change is that it is not possible to have
a phony prerequisite which is run only if the target file must be
rebuilt (phony prerequisites act like subroutines and are *always*
executed). We only want to rebuild `ftmodule.h' if `module.cfg' is
changed.
Update all callers.
($FTMODULE_H)): Rule to create `ftmodule.h', depending on
`modules.cfg'.
* builds/toplevel.mk: Rewrite and simplify module handling.
(MODULES_CFG, FTMODULE_H): New variables.
Include MODULES_CFG.
(MODULES): New variable to include all `module.mk' and `rules.mk'
files. We no longer use make's `wildcard' function for this.
* Makefile (USE_MODULES): Remove. Update all users.
(OBJ_DIR): Define it here.
* src/*/module.mk: Change
make_module_list: foo
foo: ...
to
FTMODULE_H_COMMANDS += FOO
define FOO
...
endef
in all files. `FTMODULE_H_COMMANDS' is used in `FTMODULE_H_CREATE'.
* src/base/rules.mk (BASE_EXT_SRC): Use BASE_EXTENSIONS.
* builds/unix/detect.mk (setup): Always execute `configure' script.
(have_mk): Rename to...
(have_Makefile): This.
Don't use `strip' function.
* builds/unix/unix.mk: Include `install.mk' only if BUILD_PROJECT is
defined.
(have_mk): Don't use `strip' function.
Test for unix-def.mk in OBJ_DIR, not BUILD_DIR (and invert the test
accordingly).
* builds/unix/install.mk (install, uninstall): Handle `ftmodule.h'.
* builds/os2/os2-dev.mk, builds/unix/unix-dev.mk,
builds/win32/w32-bccd.mk, builds/win32/w32-dev.mk: Don't define
BUILD_DIR but DEVEL_DIR for development header files.
* builds/ansi/ansi-def.mk (TOP_DIR, OBJ_DIR),
builds/beos/beos-def.mk (TOP_DIR, OBJ_DIR), builds/unix/unix-def.in
(TOP_DIR, OBJ_DIR): Removed. Defined elsewhere.
* builds/dos/dos-def.mk (OBJ_DIR), builds/os2/os2-def.mk (OBJ_DIR),
builds/win32/win32-def.mk (OBJ_DIR): Removed. Defined elsewhere.
* builds/unix/unixddef.mk: Don't define BUILD_DIR but DEVEL_DIR for
development header files.
Don't define PLATFORM.
* configure: Copy `modules.cfg' to builddir if builddir != srcdir.
Update snippet taken from autoconf's m4sh.m4 to current CVS version.
Be more verbose.
* include/freetype/config/ftmodule.h: Add comments -- this file is
no longer used if FreeType is built with GNU make.
* docs/CHANGES, docs/CUSTOMIZE, docs/INSTALL, docs/INSTALL.ANY,
docs/INSTALL.GNU, docs/INSTALL.UNX: Document new build mechanism.
Other minor updates.
* modules.txt: Removed. Contents included in `modules.cfg'.
* include/freetype/internal/ftmemory.h (FT_QAlloc_Debug,
FT_Free_Debug) [FT_STRICT_ALIASING]: Fix typos.
* src/base/ftdbgmem.c (FT_Alloc_Debug, FT_Realloc_Debug,
FT_QAlloc_Debug, FT_QRealloc_Debug, FT_Free_Debug)
[FT_STRICT_ALIASING]: Implement.
src/psaux/afmparse.c, src/tools/test_afm.c: Read `FontBBox',
`Ascender', and `Descender' from an AFM.
* src/type1/t1afm.c (T1_Read_Metrics): Use the metrics from the AFM.
* include/freetype/freetype.h (FT_FaceRec): Mention that fields may be
changed after file attachment.
the warp hinter isn't active (it shouldn't, still experimental)
* Jamfile, include/freetype/config/ftmodule.h: removed "gxvalid"
and "otvalid" from the list of modules that are linked statically
to a given FreeType library. Functionality has been moved to the
"ftvalid" CVS module.
note also that current Make-based build system still compiles the
modules though...
* include/freetype/config/ftoption.h: added FT_STRICT_ALIASING,
which controls the definitions of the memory management functions
to avoid warnings with recent versions of GCC. this macro is
only here to be disabled, in case we detect problems with the
new scheme.
NOTE: disable macro to use the memory debugger. this will be fixed
later !!
when compiling the library.
* include/freetype/config/ftheader.h: remove inclusions of
internal headers, except if the macro FT2_BUILD_LIBRARY is defined.
argument from `idx' to `strike_index'.
(FT_Size_Request_Type): Add FT_SIZE_REQUEST_TYPE_MAX to the end of
this enum.
* include/freetype/internal/ftobjs.h (FT_REQUEST_WIDTH,
FT_REQUEST_HEIGHT): New macros to get the width and height of a
request, in fractional pixels.
* include/freetype/internal/ftobjs.h (FT_Select_Metrics,
FT_Request_Metrics), src/base/ftobjs.c (FT_Select_Metrics,
FT_Request_Metrics): New base functions to set the font metrics. They
were part of FT_Select_Size/FT_Request_Size and are made independent
functions so that metrics are not set again and again.
* src/base/ftobjs.c (FT_Select_Size, FT_Request_Size): Metrics are set
only when driver's size_select/size_request is NULL. That is, drivers
should set the metrics themselves.
(FT_Match_Size): Round before matching. This was what we did and it
does cause some problems without rounding.
* src/cff/cffobjs.c (cff_size_select), src/truetype/ttdriver.c
(tt_size_select): Set the font metrics.
s/index/strike_index/.
The scaled metrics are always preferred over strikes' metrics, even
when some strike is selected. This is done because the strikes'
metrics are not reliable, e.g., the sign of the descender is wrong for
some fonts.
* src/cff/cffobjs.c (cff_size_request), src/truetype/ttdriver.c
(tt_size_request): Set the font metrics.
Call cff_size_select/tt_size_select when some strike is matched.
* src/bdf/bdfdrivr.c, src/cff/cffobjs.c, src/cid/cidobjs.c,
src/pcf/pcfdrivr.c, src/truetype/ttdriver.c, src/type1/t1objs.c,
src/type1/t1objs.h, src/type42/t42objs.c, src/winfonts/winfnt.c:
Set the font metrics.
s/index/strike_index/.
* src/tools/test_afm.c, src/psaux/psconv.c: Older versions of these
files were committed. Just a catch-up.
(PS_Conv_ToFixed): Remove the `goto'.
(PS_Conv_ASCIIHexDecode, PS_Conv_EexecDecode): Speed up a little.
* src/sfnt/ttsbit.c (tt_face_load_sbit_strikes,
tt_face_load_strike_metrics), src/sfnt/ttsbit0.c
(tt_face_load_sbit_strikes, tt_face_load_strike_metrics): The
advertised metrics in `available_sizes' are different from those
actually used.
implement an AFM parser. It is used to parse an AFM file.
* src/psaux/psconv.c, src/psaux/psconv.h: New files to provide
conversion functions (e.g, PS real number => FT_Fixed) for the
PS_Parser and AFM_Parser. Some of the functions are taken, with some
modifications, from the psobjs.c
* src/psaux/psobjs.c: Use functions from psconv.c.
* include/freetype/internal/psaux.h, src/psaux/psauxmod.c:: Add
`AFM_Parser' to the `psaux' service.
* src/psaux/psaux.c, src/psaux/rules.mk: Include those new files.
* src/tools/test_afm.c: A test program for AFM parser.
* include/freetype/internal/services/svkern.h,
include/freetype/internal/ftserv.h: New service `Kerning'. It is
currently only used to get the track kerning information.
* src/type1/t1driver.c, src/type1/t1objs.c, src/type1/t1afm.c,
src/type1/t1afm.h: Update to use the AFM parser.
Provide the `Kerning' service.
* include/freetype/freetype.h, src/base/ftobjs.c: New API
`FT_Get_Track_Kerning'.
src/bdf/bdfdrivr.c, src/cff/cffgload.c, src/cid/cidgload.c,
src/pcf/pcfdrivr.c, src/type1/t1gload.c, src/winfonts/winfnt.c:
s/ft_fake_vertical_metrics/ft_synthesize_vertical_metrics/.
* docs/CHANGES: Mention that vertical metrics are synthesized for
fonts not having this info.
src/base/ftobjs.c (ft_fake_vertical_metrics): New function to fake the
vertical metrics.
* src/cff/cffgload.c, src/cid/cidgload.c, src/pcf/pcfdrivr.c,
src/type1/t1gload.c, src/winfonts/winfnt.c: Fake the vertical metrics.
The fake metrics is monotone.
* src/truetype/ttgload.c (compute_glyph_metrics): Some fixes and
formattings in vertical metrics faking. There are still rooms for
improvements (and so do the CFF module).
(PCF_Glyph_Load), src/winfonts/winfnt.c (FNT_Load_Glyph): Don't set
the linear advance fields as they are only for the outline glyphs.
* include/freetype/freetype.h: Documentation updates/clarificatoins.
The meaning of FT_LOAD_FORCE_AUTOHINT is changed so that no real
change need be made to the code.
* src/base/ftobjs.c (FT_Load_Glyph): Resolve flag dependencies and
decide whether to use the auto-hinter according to documentation.
There should to be no real difference.
Some checks (e.g., is text height positve?) after the glyph is loaded.
(FT_Select_Size, FT_Request_Size): Scales are set to wrong values.
Be careful that scales won't be negative.
`load_strike_metrics' used to load the strike's metrics.
* src/sfnt/sfdriver.c, src/sfnt/ttsbit.c, src/sfnt/ttsbit.h,
src/sfnt/ttsbit0.c: New function `tt_face_load_strike_metrics'.
* src/pfr/pfrobjs.c (pfr_face_init): Set FT_Bitmap_Size correctly.
* src/winfonts/winfnt.c (FNT_Face_Init): Use `nominal_point_size' for
nominal size unless it is obviously incorrect.
* include/freetype/freetype.h (FT_Bitmap_Size): Update the comments on
FNT driver.
Introduce new size selection interface.
* include/freetype/internal/ftdriver.h (struct FT_Driver_ClassRec_):
Replace `set_char_sizes' and `set_pixel_sizes' by `request_size' and
`select_size'.
* include/freetype/freetype.h (FT_Select_Size, FT_Size_Request_Type,
FT_Size_Request, FT_Request_Size, FT_Select_Size), src/base/ftobjs.c
(FT_Select_Size, FT_Request_Size): API additions to export the new
size selection interface.
* src/base/ftobjs.c (FT_Set_Char_Size, FT_Set_Pixel_Sizes): Use
`FT_Request_Size'.
* include/freetype/internal/ftobjs.h (FT_Match_Size),
src/base/ftobjs.c (FT_Match_Size): New function to match a size
request against `available_sizes'. Drivers supporting bitmap strikes
can use this function to implement `request_size'.
* src/bdf/bdfdrivr.c, src/cid/cidobjs.c, src/cid/cidobjs.h,
src/cid/cidriver.c, src/pcf/pcfdrivr.c, src/type1/t1driver.c,
src/type1/t1objs.c, src/type1/t1objs.h, src/type42/t42drivr.c,
src/type42/t42objs.c, src/type42/t42objs.h, src/winfonts/winfnt.c:
Update to new size selection interface.
* src/cff/cffdrivr.c, src/cff/cffgload.c, src/cff/cffobjs.c,
src/cff/cffobjs.h, src/truetype/ttdriver.c, src/truetype/ttgload.c,
src/truetype/ttobjs.c, src/truetype/ttobjs.h: Update to new size
selection interface.
Make `strike_index' FT_ULong and always defined.
Use `load_strike_metrics' provided by SFNT interface.
* include/freetype/internal/services/svpscmap.h: Include
FT_INTERNAL_OBJECTS_H.
(PS_Unicode_Index_Func): Removed. Unused.
(PS_Macintosh_Name_Func): Renamed to...
(PS_Macintosh_NameFunc): This.
Update all callers.
(PS_Adobe_Std_Strings_Func): Renamed to...
(PS_Adobe_Std_StringsFunc): This.
Update all callers.
(PS_UnicodesRec): This is the former `PS_Unicodes' structure.
Add `cmap' member.
Update all callers.
(PS_Unicodes): This is now a typedef'd pointer to PS_UnicodesRec.
Update all callers.
(PS_Glyph_NameFunc): New typedef.
(PS_Unicodes_InitFunc): Change arguments to expect a function
and generic data pointer which returns a glyph name from a given
index.
* src/psnames/psmodule.c (ps_unicodes_init, ps_unicodes_char_index,
ps_unicodes_char_next, pscmaps_interface): Updated.
* include/freetype/internal/t1types.h (T1_FaceRec): Updated.
* src/psaux/t1cmap.h (T1_CmapStdRec): Updated.
(T1_CmapUnicode, T1_CmapUnicodeRec): Removed.
* src/psaux/t1cmap.c (t1_get_glyph_name): New callback function.
(t1_cmap_unicode_init, t1_cmap_unicode_done,
t1_cmap_unicode_char_index, t1_cmap_unicode_char_next,
t1_cmap_unicode_class_rec): Updated.
* src/type42/t42types.h (T42_FaceRec): Updated.
* include/freetype/internal/services/svpscmap.h (PS_UniMap): Use
FT_UInt32 for `glyph_index'.
(PS_Unicodes_InitFunc): Use FT_String for `glyph_names'.
(PS_Unicodes_CharIndexFunc): Use FT_UInt32 for `unicode'.
(PS_Unicodes_CharNextFunc): Make second argument a pointer to
FT_UInt32.
* src/psnames/psmodule.c (VARIANT_BIT, BASE_GLYPH): New macros.
(ps_unicode_value): Set VARIANT_BIT in return value if glyph is a
variant glyph (this is, it has non-leading `.' in its name).
(compare_uni_maps): Sort base glyphs before variant glyphs.
(ps_unicodes_init): Use FT_String for `glyph_names' argument.
Reallocate only if number of used entries is much smaller.
Updated to handle variant glyphs.
(ps_unicodes_char_index, ps_unicodes_char_next): Prefer base glyphs
over variant glyphs.
Simplify code.
* src/psaux/t1cmap.c (t1_cmap_uni_pair_compare): Removed.
(t1_cmap_unicode_init, t1_cmap_unicode_char_index,
t1_cmap_unicode_char_next): Use pscmap service.
(t1_cmap_unicode_done): Updated.
* src/psaux/t1cmap.h (T1_CMapUniPair): Removed.
(T1_CMapUnicode): Use PS_Unicodes structure.
correctly to generate the API reference in 'docs/reference'
* src/tools/docmaker/tohtml.py: update to output nicer fields lists
in the API reference
* src/base/ftobjs.c (FT_Load_Glyph): FT_LOAD_TARGET_LIGHT now
forces auto-hinting
* freetype/freetype.h: updating the documentation for
FT_LOAD_TARGET_XXX and FT_Render_Mode values
include/freetype/config/ftstdlib.h,
include/freetype/internal/tttypes.h,
src/sfnt/Jamfile, src/sfnt/rules.mk, src/sfnt/sfdriver.c,
src/sfnt/ttbdf.h, src/sfnt/ttbdf.c, src/sfnt/sfobjs.c:
Added support for an embedded 'BDF ' table within SFNT-based
bitmap font files. This is used to store atoms & properties from
the original BDF fonts that were used to generate the font file.
the feature is controled by TT_CONFIG_OPTION_BDF within 'ftoption.h'
and is used to implement FT_Get_BDF_Property for these font files.
At the moment, this is still experimental, the BDF table format isn't
cast into stone yet.
Make compiling instructions in docs/CUSTOMIZE work again.
* builds/unix/unix-cc.in (CPPFLAGS): New variable.
(CFLAGS): Don't include @CPPFLAGS@.
* builds/freetype.mk (FT_CFLAGS): Add CPPFLAGS.
- fixing apinames.c, adding support for Watcom and Borland compilers
- adding generation of exported symbols list to the build system, including the Unix one !!
sorry Werner, I have no time to document this in ChangeLog at the moment
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...
src/truetype/ttpload.c, src/truetype/ttpload.h, src/truetype/ttgload.c:
added the temporary configuration FT_OPTIMIZE_MEMORY to control various
optimizations used to reduce the heap footprint of memory-mapped TrueType
files.
* src/truetype/ttpload.c (tt_face_load_loca, tt_face_get_location,
tt_face_done_loca): when FT_OPTIMIZE_MEMORY is set, the locations table
is read directly from memory-mapped streams, instead of being decoded
into the heap.
* src/truetype/ttpload.c: only load the CVT and fpgm tables when the
bytecode interpreter is compiled in.
in the memory debugger. Also a new function FT_DumpMemory() was added.
It is only available in builds with FT_DEBUG_MEMORY defined, and you
must declare it in your own code to use it, i.e. with something
like:
extern void FT_DumpMemory( FT_Memory );
...
FT_DumpMemory( memory );
* include/freetype/config/ftoptions.h: disabling TrueType bytecode
interpreter !
* include/freetype/internal/ftmemory.h: adding FT_ARRAY_ZERO, as a
convenience macro.
(unfinished) `otlayout' module but has been heavily modified to make
it much more compact.
* src/otvalid/*: New module.
* include/freetype/ftotval.h, src/base/ftotval.c,
include/freetype/internal/services/svotval.h: New files.
* include/freetype/config/ftmodule.h: Add otv_module_class.
* include/freetype/config/ftheader.h (FT_OPENTYPE_VALIDATE_H): New
macro.
* include/freetype/internal/ftserv.h
(FT_SERVICE_OPENTYPE_VALIDATE_H): New macro.
* include/freetype/internal/fttrace.h (otvmodule, otvcommon,
otvbase, otvgdef, otvgpos, otvgsub, otvjstf): New trace components.
* include/freetype/ftchapters.h: Updated.
* src/base/Jamfile (Library), src/base/descrip.mms (OBJS),
src/base/rules.mk (BASE_EXT_SRC): Updated.
* docs/CHANGES: Updated.
to NULL. This allows custom close functions to delete the FT_STREAM
object.
Add API to get information about SFNT tables.
* include/freetype/internal/services/svsfnt.h
(FT_SFNT_Table_Info_Func): New typedef.
(SFNT_Table): Add it.
* src/base/ftobjs (FT_Sfnt_Table_Info): New function.
* include/freetype/tttables.h: Updated.
* src/sfnt/sfdriver.c (sfnt_table_info): New function.
(sfnt_service_sfnt_table): Add it.
* docs/CHANGES: Updated.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 10.
* builds/unix/configure.ac (version_info): Set to 9:8:3.
* builds/unix/configure: Updated.
* 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/2.1.8/2.1.9/.
* docs/CHANGES, docs/VERSION.DLL: Updated.
* src/base/ftrfork.c (FT_Raccess_Guess)
[!FT_CONFIG_OPTION_GUESSING_EMBEDDED_FORK]: Remove compiler
warnings.
fixed a dangling pointer bug that happened in very rare cases:
i.e. when a new family object was destroyed by an out-of-memory
condition during a glyph node initialization. The function
FTC_Cache_Lookup would flush the cache and restart the lookup
with a bad pointer.
* src/cache/ftcmanag.c: fixed a cache flushing bug
FT_QAlloc_Debug and FT_QRealloc_Debug.
* src/base/ftutil.c (FT_QAlloc): Fix error and debug messages.
(FT_QRealloc): Call FT_QAlloc if original pointer is NULL.
Fix error message.
src/cache/ftccache.c, src/cache/ftcglyph.c, src/cache/ftcmanag.c,
src/cache/ftcsbits.c:
fixing some annoying bugs and inefficiencies in the cache sub-system.
src/autofit/afloader.c, src/autohint/ahhint.c:
moved the definition of 'lsb_delta' and 'rsb_delta' from FT_GlyphMetrics
to FT_GlyphSlotRec. The old location did BREAK BINARY COMPATIBILITY
of the library !!
* src/sfnt/sfobjs.c: removing compiler warning
Improve inter-letter spacing for autohinted glyphs.
* include/freetype/freetype.h (FT_Glyph_Metrics): Add elements
`lsb_delta' and `rsb_delta'.
* src/autohint/ahhint.c (ah_hinter_load): Set `lsb_delta' and
`rsb_delta' in slot->metrics.
auxiliary functions.
(T1_Get_MM_Var): Provide axis tags.
Use mm_axis_unmap and mm_weights_unmap to provide default values
for design and normalized axis coordinates.
* include/freetype/t1tables.h (PS_DesignMapRec): Change type of
`design_points' to FT_Long.
Update all users.
enumeration.
(T1_BuilderRec): Replace `path_begun' with `parse_state'.
Remove `error'.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Replace
`Memory_Error' with `Fail' and update all users.
Don't use `builder->error'.
Replace `path_begun' with `parse_state' and check parsing states.
* src/psaux/psobjs.c (t1_builder_init, t1_builder_start_point):
Replace `path_begun' with `parse_state' and check parsing states.
* src/pcf/pcfutil.c: Use FT_LOCAL_DEF.
* src/pcf/pcfutil.h: Include FT_CONFIG_CONFIG_H.
Use FT_BEGIN_HEADER and FT_END_HEADER.
Use FT_LOCAL.
2004-04-24 George Williams <gww@silcom.com>
Add support for Apple's distortable font technology (in GX fonts).
* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_GX_VAR_SUPPORT): New macro.
* include/freetype/ftmm.h (FT_Var_Axis, FT_Var_Named_Style,
FT_MM_Var): New structures.
(FT_Get_MM_Var, FT_Set_Var_Design_Coordinates,
FT_Set_Var_Blend_Coordinates): New function declarations.
* include/freetype/internal/services/svmm.h (FT_Get_MM_Var_Func,
FT_Set_Var_Design_Func): New typedefs.
Update MultiMasters service.
* include/freetype/internal/tttypes.h
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H.
(GX_Blend) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New typedef.
(TT_Face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New members `doblend'
and `blend'.
* include/freetype/tttags.h (TTAG_avar, TTAG_cvar, TTAG_gvar): New
macros.
* include/freetype/internal/fttrace.h: Add `ttgxvar'.
* src/base/ftmm.c (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates,
FT_Set_Var_Blend_Coordinates): New functions.
* src/sfnt/sfobjs.c (sfnt_load_face)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Set FT_FACE_FLAG_MULTIPLE_MASTERS
flag for GX var fonts.
* src/truetype/ttgxvar.c, src/truetype/ttgxvar.h: New files.
* src/truetype/truetype.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include
ttgxvar.c.
* src/truetype/ttdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include
FT_MULTIPLE_MASTERS_H, FT_SERVICE_MULTIPLE_MASTERS_H, and ttgxvar.h.
(tt_service_gx_multi_masters) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]:
New service.
(tt_services) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated.
* src/truetype/ttgload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include
ttgxvar.h.
(TT_Process_Simple_Glyph, load_truetype_glyph)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT] :Support GX var fonts.
* src/truetype/ttobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include
ttgxvar.h.
(tt_done_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call
tt_done_blend.
* src/truetype/ttpload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include
ttgxvar.h.
(tt_face_load_cvt) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call
tt_face_vary_cvt.
* src/truetype/rules.mk (TT_DRV_SRC): Add ttgxvar.c.
* src/type1/t1driver.c (t1_service_multi_masters): Add T1_Get_MM_Var
and T1_Set_Var_Design.
* src/type1/t1load.c (FT_INT_TO_FIXED, FT_FIXED_TO_INT): New macros.
(T1_Get_MM_Var, T1_Set_Var_Design): New functions.
* src/type1/t1load.h (T1_Get_MM_Var, T1_Set_Var_Design): New
function declarations.
Werner Lemberg