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.
conversion function (mainly stupid optimization, because I like
these... shame on me)
* src/base/Jamfile: adding ftbitmap.c to the list of compiled files
return the FreeType version. Suggested by George Williams
<gww@silcom.com>.
* docs/CHANGES: Updated.
* src/otvalid/otvmod.c (otv_validate): Deallocate arrays in case
of error. Reported by YAMANO-UCHI Hidetoshi <mer@din.or.jp>.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings)
<op_closepath>: Accept `T1_Parse_Have_Moveto' state also which can
happen in empty glyphs. Reported by Ian Brown
<ian.brown@printsoft.de>.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Don't shift
points vertically before hinting.
* docs/CHANGES: Updated.
* src/cache/ftcglyph.c (FTC_GNode_UnselectFamily,
FTC_GCache_Lookup): A new try to fix comparison with zero.
overflow.
* src/sfnt/ttload.c (tt_face_load_hdmx): Protect against bad input.
Don't use FT_QNEW_ARRAY but FT_NEW_ARRAY to make deallocation work
in case of failure.
* src/sfnt/ttsbit.c (Load_SBit_Range): Check range intervals.
(tt_face_load_sbit_strikes): Allocate `strike_sbit_ranges' after
frame test.
* src/truetype/ttgload.c (TTLoad_Simple_Glyph): Add assertion for
`flag'.
Fix handling of NPUSHW if skipped in data stream.
* src/truetype/ttinterp.c (opcode_length): Set value for NPUSHW
to -2.
(SkipCode, TT_RunIns): Use opcode_length value for computation of
bytes to be skipped.
(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.
not number of 16bit entities.
(otl_gpos_lookup2_validate): Check class definition tables for
format 2.
Fix loop for format 2.
(otl_liga_mark2_validate): Fix offset for otl_anchor_validate.
(otl_coverage_validate): Initialize `p',
s/count/num_glyphs/.
s/start_cover/start_coverage/.
(otl_coverage_get_index): Return OTL_Long, not OTL_Int.
Remove unused variables.
(otl_class_definition_validate): s/count/num_glyphs/.
Remove unused variables.
(otl_class_definition_get_value, otl_device_table_get_start,
otl_device_table_get_end, otl_device_table_get_delta,
otl_lookup_get_table, otl_lookup_list_get_count,
otl_lookup_list_get_lookup, otl_lookup_list_get_table,
otl_feature_get_lookups, otl_feature_list_get_count,
otl_feature_list_get_feature, otl_lang_get_count,
otl_lang_get_req_feature, otl_lang_get_features): Commented out
temporarily until we really need it.
(otl_lookup_validate): Removed.
(otl_lookup_table_validate): Renamed to ...
(otl_lookup_validate): This. Update callers.
(otl_lookup_list_validate): Remove already commented out definition
and move the other definition up.
(otl_feature_validate): Add parameter to pass number of lookups.
Update callers.
Check lookup indices.
(otl_feature_list_validate): Add parameter to pass lookup table.
Update callers.
(otl_lang_validate): Add parameter to pass number of features.
Update callers.
Handle req_feature and check feature indices.
(otl_script_validate): Add parameter to pass number of features.
Update callers.
(otl_script_list_validate): Add parameter to pass feature table.
Update callers.
* src/otlayout/otcommn.h: s/LOCALDEF/LOCAL/.
Comment out the same functions as in otcommn.c.
(otl_script_list_get_script): Removed.
* src/otlayout/otlgsub.c (otl_gsub_lookup1_apply): Change `index' to
type OTL_Long.
(otl_gsub_lookup2_apply, otl_gsub_lookup3_apply): Change `index' to
type OTL_Long.
Fix test.
(otl_gsub_validate): Fix order of validation.
* src/otlayout/otlgpos.c (otl_gpos_validate): Fix order of
validation.
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.
bytecode interpreter. This is an experimental feature which
should probably be made optional.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph,
load_truetype_glyph): Move the code to set the pedantic_hinting flag
to...
(TT_Load_Glyph): Here.
Set `grayscale' flag except for `FT_LOAD_TARGET_MONO'.
* src/truetyep/ttinterp.c (Ins_GETINFO): Return MS rasterizer
version 1.7.
Return rotation and stretching info only if glyph is rotated or
stretched, respectively.
Handle grayscale info.
* src/truetype/ttinterp.h (TT_ExecContextRec): Add `grayscale'
member.
FreeType now can read kerning values from PFM files.
* src/type1/t1afm.c (T1_Done_AFM): Renamed to...
(T1_Done_Metrics): This.
Update all callers.
(T1_Read_AFM): Make it static.
Don't enter and leave a frame.
(LITTLE_ENDIAN_USHORT, LITTLE_ENDIAN_UINT): New macros.
(T1_Read_PFM): New function.
(T1_Read_Metrics): New higher-level function to be used instead of
T1 Read_AFM.
Update all callers.
