ref: 79d52b9a8d1422587ea4d74ce761fb211b55cd3f
dir: /ChangeLog/
2017-01-23 Werner Lemberg <[email protected]>
[truetype] Avoid segfault for invalid variation data.
* src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Assure
`itemCount' is not zero.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=441
2017-01-20 Werner Lemberg <[email protected]>
* src/truetype/ttinterp.c (TT_RunIns): Adjust loop detector limits.
2017-01-17 Werner Lemberg <[email protected]>
* include/freetype/ttnameid.h: Updated to OpenType 1.8.1.
(TT_APPLE_ID_FULL_UNICODE): New macro.
(TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC,
TT_MS_LANGID_UPPER_SORBIAN_GERMANY,
TT_MS_LANGID_LOWER_SORBIAN_GERMANY, TT_MS_LANGID_IRISH_IRELAND,
TT_MS_LANGID_INUKTITUT_CANADA_LATIN, TT_MS_LANGID_BASHKIR_RUSSIA,
TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG,
TT_MS_LANGID_GREENLANDIC_GREENLAND, TT_MS_LANGID_MAPUDUNGUN_CHILE,
TT_MS_LANGID_MOHAWK_MOHAWK, TT_MS_LANGID_BRETON_FRANCE,
TT_MS_LANGID_OCCITAN_FRANCE, TT_MS_LANGID_CORSICAN_FRANCE,
TT_MS_LANGID_ALSATIAN_FRANCE, TT_MS_LANGID_YAKUT_RUSSIA,
TT_MS_LANGID_KICHE_GUATEMALA, TT_MS_LANGID_KINYARWANDA_RWANDA,
TT_MS_LANGID_WOLOF_SENEGAL, TT_MS_LANGID_DARI_AFGHANISTAN): New
macros.
(TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC): Fix value.
(TT_MS_LANGID_GERMAN_LIECHTENSTEIN, TT_MS_LANGID_CATALAN_CATALAN,
TT_MS_LANGID_CHINESE_MACAO, TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT,
TT_MS_LANGID_KOREAN_KOREA, TT_MS_LANGID_ROMANSH_SWITZERLAND,
TT_MS_LANGID_SLOVENIAN_SLOVENIA, TT_MS_LANGID_BASQUE_BASQUE,
TT_MS_LANGID_SETSWANA_SOUTH_AFRICA,
TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA,
TT_MS_LANGID_ISIZULU_SOUTH_AFRICA, TT_MS_LANGID_KAZAKH_KAZAKHSTAN,
TT_MS_LANGID_KYRGYZ_KYRGYZSTAN, TT_MS_LANGID_KISWAHILI_KENYA,
TT_MS_LANGID_TATAR_RUSSIA, TT_MS_LANGID_ODIA_INDIA,
TT_MS_LANGID_MONGOLIAN_PRC, TT_MS_LANGID_TIBETAN_PRC,
TT_MS_LANGID_WELSH_UNITED_KINGDOM, TT_MS_LANGID_GALICIAN_GALICIAN,
TT_MS_LANGID_SINHALA_SRI_LANKA, TT_MS_LANGID_TAMAZIGHT_ALGERIA,
TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA, TT_MS_LANGID_YI_PRC,
TT_MS_LANGID_UIGHUR_PRC): New aliases.
Remove commented out code.
(TT_NAME_ID_LIGHT_BACKGROUND, TT_NAME_ID_DARK_BACKGROUND,
TT_NAME_ID_VARIATIONS_PREFIX): New macros.
(HAVE_LIMIT_ON_IDENTS): Remove macro (which was useless since many
years), use guarded long macros by default and define short versions
as aliases for the long ones.
2017-01-15 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (tt_apply_var): Handle underline parameters
also.
2017-01-11 Werner Lemberg <[email protected]>
* src/base/ftobjs.c (ft_open_face_internal): Improve tracing.
2017-01-11 Werner Lemberg <[email protected]>
[truetype] Actually use metrics variation service.
* src/base/ftmm.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(ft_face_get_mvar_service): New auxiliary function to look up
metrics variation service.
(FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates,
FT_Set_Var_Blend_Coordinates): Call metrics variation service.
* src/truetype/ttobjs.c (tt_face_init): Use metrics variations for
named instances.
2017-01-11 Werner Lemberg <[email protected]>
[truetype] Provide metrics variation service.
* include/freetype/internal/services/svmetric.h
(FT_Metrics_Adjust_Func): Reduce number of necessary parameters.
* src/truetype/ttgxvar.c: Include FT_LIST_H.
(tt_size_reset_iterator): New auxiliary function for...
(tt_apply_var): New function.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttdriver.c (tt_service_metrics_variations): Add
`tt_apply_mvar'.
* include/freetype/internal/ftserv.h (FT_ServiceCache): Add metrics
variation service.
2017-01-11 Werner Lemberg <[email protected]>
[truetype] Parse `MVAR' table.
* src/truetype/ttgxvar.h (MVAR_TAG_XXX): New macros for MVAR tags.
(GX_Value, GX_MVarTable): New structures.
(GX_Blend): Add it.
* src/truetype/ttgxvar.c (GX_VALUE_SIZE, GX_VALUE_CASE,
GX_GASP_CASE): New macros.
(ft_var_get_value_pointer): New auxiliary function to get a pointer
to a value from various SFNT tables already stored in `TT_Face'.
(ft_var_load_mvar): New function.
(TT_Get_MM_Var): Call it.
(tt_done_blend): Updated.
2017-01-11 Werner Lemberg <[email protected]>
[truetype] More preparations for MVAR support.
* src/truetype/ttobjs.c (tt_size_reset): Add argument to make
function only recompute ascender, descender, and height.
* src/truetype/ttobjs.h: Updated.
* src/truetype/ttdriver.c (tt_size_select, tt_size_request):
Updated.
2017-01-09 Werner Lemberg <[email protected]>
[pcf] Disable long family names by default.
* include/freetype/config/ftoption.h
(PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): Comment out.
2017-01-09 Werner Lemberg <[email protected]>
[pcf] Make long family names configurable.
The change from 2016-09-29 was too radical (except for people using
the openSuSE GNU/Linux distribution). To ameliorate the situation,
PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls
the feature; if set, a new PCF property option
`no-long-family-names' can be used to switch this feature off.
* include/freetype/config/ftoption.h, devel/ftoption.h
(PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option.
* include/freetype/ftpcfdrv.h: New header file (only containing
comments currently, used for building the documentation).
* include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro.
* src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field.
* src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and
FT_PCF_DRIVER_H.
(pcf_property_set, pcf_property_get): New functions.
(pcf_service_properties): New service.
(pcf_services): Updated.
(pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle
`no_long_family_names'.
* src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names'
and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
* docs/CHANGES: Updated.
2017-01-09 Werner Lemberg <[email protected]>
[pcf] Introduce a driver structure.
To be filled later on with something useful.
* src/pcf/pcf.h (PCF_Driver): New structure.
* src/pcf/pcfdrivr.c (pcf_driver_init, pcf_driver_done): New dummy
functions.
(pcf_driver_class): Updated.
2017-01-08 Werner Lemberg <[email protected]>
[truetype] Again some GX code shuffling.
We need this later on for MVAR also.
* src/truetype/ttgxvar.c (tt_hadvance_adjust): Split off computing
an item store variation delta into...
(ft_var_get_item_delta): ...new function.
2017-01-08 Werner Lemberg <[email protected]>
[truetype] Adjust font variation flags for MVAR.
* include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX):
Remove all flags related to MVAR; replace it with...
(TT_FACE_FLAG_VAR_MVAR): ...this new macro.
(TT_Face): Remove `mvar_support' field (which was still unused).
2017-01-06 Werner Lemberg <[email protected]>
[truetype] More GX code shuffling.
We need this later on for MVAR also.
* src/truetype/ttgxvar.c (tt_done_blend): Split off handling of item
variation store into...
(ft_var_done_item_variation_store): ...new function.
2017-01-06 Werner Lemberg <[email protected]>
[truetype] More generalization of GX stuff.
We need this later on for MVAR also.
* src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping): Add
parameters for delta-set index mapping and item variation store.
(ft_var_load_item_variation_store): Add parameter for item variation
store.
s/hvarData/varData/.
Move allocation of `hvar_table' to...
(ft_var_load_hvar): ...this function.
Updated.
2017-01-06 Werner Lemberg <[email protected]>
[truetype] Some GX structure renames for generalization.
We need this later on for MVAR also.
* src/truetype/ttgxvar.h (GX_HVarData): Renamed to...
(GX_ItemVarData): ...this.
(GX_HVarRegion): Renamed to...
(GX_VarRegion): ...this.
(GX_HVStore): Renamed to...
(GX_ItemVarStore): ...this.
(GX_WidthMap): Renamed to...
(GX_DeltaSetIdxMap): ...this.
(GX_HVarTable): Updated.
* src/truetype/ttgxvar.c: Updated.
2017-01-06 Werner Lemberg <[email protected]>
[truetype] Code shuffling.
* src/truetype/ttgxvar.c (ft_var_load_hvar): Split off loading of
item variation store and delta set index mapping into...
(ft_var_load_item_variation_store,
ft_var_load_delta_set_index_mapping): ...new functions.
2017-01-06 Werner Lemberg <[email protected]>
[truetype] Add HVAR access without advance width map.
* src/truetype/ttgxvar.c (ft_var_load_hvar): Handle case where
`offsetToAdvanceWidthMapping' is zero.
(tt_hadvance_adjust): Implement direct deltaSet access by glyph
index.
2017-01-06 Werner Lemberg <[email protected]>
[pcf] Revise driver.
This commit improves tracing and handling of malformed fonts. In
particular, the changes to `pcf_get_properties' fix
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=379
* src/pcf/pcfread.c (tableNames): Use long names for better
readability.
(pcf_read_TOC): Allow at most 9 tables.
(pcf_get_properties): Allow at most 256 properties.
Limit strings array length to 256 * (65536 + 1) bytes.
Better tracing.
(pcf_get_metric): Trace metric data.
(pcf_get_metrics): Allow at most 65536 metrics.
Fix comparison of `metrics->ascent' and `metrics->descent' to avoid
potential overflow.
Better tracing.
(pcf_get_bitmaps): Allow at most 65536 bitmaps.
Better tracing.
(pcf_get_encodings, pcf_get_accel): Better tracing.
* src/pcf/pcfdrivr.c (PCF_Glyph_Load): Don't trace `format' details.
These are now shown by `pcf_get_bitmaps'.
2017-01-04 Werner Lemberg <[email protected]>
* src/pcf/pcfdrivr.c (PCF_Face_Init): Trace compression format.
2017-01-04 Werner Lemberg <[email protected]>
[cff] More consistency checks for pure CFFs.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=378
* src/cff/cffload.c (cff_font_load): Check element number and size
of Name and Top DICT indices.
2017-01-04 Werner Lemberg <[email protected]>
[cff, truetype] Minor tracing improvement.
* src/cff/cffobjs.c (cff_face_init), src/truetype/ttobjs.c
(tt_face_init): Indent first tracing message from SFNT driver.
2017-01-03 Werner Lemberg <[email protected]>
[truetype] Various minor fixes.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Check instruction
size only if we do native hinting.
(TT_Load_Glyph): Trace returned error code.
* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Trace
returned error code.
(tt_size_ready_bytecode): Don't run `prep' table if `fpgm' table is
invalid.
2017-01-03 Werner Lemberg <[email protected]>
[sfnt] Don't fail if PCLT, EBLC (and similar tables) are invalid.
These tables are optional.
* src/sfnt/sfobjs.c (sfnt_load_face): Implement it.
2017-01-03 Werner Lemberg <[email protected]>
* src/cff/cffparse.c (cff_parse_num): Simplify.
2017-01-03 Werner Lemberg <[email protected]>
Various fixes for clang's undefined behaviour sanitizer.
* src/cff/cffload.c (FT_fdot14ToFixed): Fix casting.
(cff_blend_doBlend): Don't left-shift negative numbers.
Handle 5-byte numbers byte by byte to avoid alignment issues.
* src/cff/cffparse.c (cff_parse_num): Handle 5-byte numbers byte by
byte to avoid alignment issues.
* src/cid/cidload (cid_read_subrs): Do nothing if we don't have any
subrs.
* src/psaux/t1decode.c (t1_decode_parse_charstring): Fix tracing.
* src/tools/glnames.py (main): Put `DEFINE_PSTABLES' guard around
definition of `ft_get_adobe_glyph_index'.
* src/psnames/pstables.h: Regenerated.
* src/psnames/psmodule.c: Include `pstables.h' twice to get both
declaration and definition.
* src/truetype/ttgxvar.c (FT_fdot14ToFixed, FT_intToFixed): Fix
casting.
2017-01-01 Werner Lemberg <[email protected]>
[cff] Handle multiple `blend' operators in a row correctly.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=368
* src/cff/cffload.c (cff_blend_doBlend): Adjust `parser->stack'
pointers into `subFont->blend_stack' after reallocation.
2017-01-01 Werner Lemberg <[email protected]>
[sfnt] Return correct number of named instances for TTCs.
Without this patch, requesting information for face index N returned
the data for face index N+1 (or index 0).
* src/sfnt/sfobjs.c (sfnt_init_face): Correctly adjust `face_index'
for negative `face_instance_index' values.
2016-12-31 Werner Lemberg <[email protected]>
*/*: Use hex numbers for errors in tracing messages.
2016-12-31 Werner Lemberg <[email protected]>
[truetype] Check axis count in HVAR table.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=362
* src/truetype/ttgxvar.c (ft_var_load_hvar): Check axis count.
(ft_var_load_avar): Fix tracing message.
2016-12-30 Werner Lemberg <[email protected]>
* Version 2.7.1 released.
=========================
Tag sources with `VER-2-7-1'.
* docs/VERSION.TXT: Add entry for version 2.7.1.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.7/2.7.1/, s/27/271/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
* builds/unix/configure.raw (version_info): Set to 19:0:13.
* CMakeLists.txt (VERSION_PATCH): Set to 1.
2016-12-30 Werner Lemberg <[email protected]>
[ftfuzzer] Replace `rand' with an xorshift algorithm.
* src/tools/ftfuzzer/ftfuzzer.cc: Don't include `stdlib.h'.
(Random): Implement and use a 32bit `xorshift' algorithm.
2016-12-30 Werner Lemberg <[email protected]>
[ftfuzzer] Restrict number of tested bitmap strikes.
Malformed fonts often have large values for the number of bitmap
strikes, and FreeType doesn't check the validity of all bitmap
strikes in advance.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=353
* src/tools/ftfuzzer/ftfuzzer.cc: Include `stdlib.h' for `rand'.
(Random): Small class to provide n randomly selected numbers
(without repetition) out of the value set [1,N].
(LLVMFuzzerTestOneInput): Use it to test only up to 10 bitmap
strikes.
2016-12-29 Werner Lemberg <[email protected]>
[truetype] Variation font API stability issues.
Make some functions work before a call to `TT_Set_MM_Blend'.
* src/truetype/ttgxvar.c (tt_hadvance_adjust): Exit immediately if
we don't blend.
(TT_Get_MM_Blend, TT_Get_Var_Design): Return default values if we
don't blend.
2016-12-29 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis data.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=348
2016-12-29 Werner Lemberg <[email protected]>
[truetype] Tracing fixes.
* src/truetype/ttgxvar.c (tt_hadvance_adjust): Emit correct
information.
(TT_Set_Var_Design): Fix typo.
(TT_Get_Var_Design): Fix typos.
2016-12-29 Werner Lemberg <[email protected]>
*/*: Use `0.5f' for tracing 16.16 numbers.
2016-12-29 Werner Lemberg <[email protected]>
[pcf] Protect against gzip bombs.
Fix suggested by Kostya; reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=345
* src/pcf/pcfread.c (pcf_read_TOC): Limit number of TOC entries to
1024.
2016-12-28 Werner Lemberg <[email protected]>
[psnames] Only declare, not define, data in `pstables.h' (#49949).
Pdfium includes `pstables.h' a second time; moving the definition
from `pstables.h' to `psmodule.c' saves more than 60kByte data
segment space for this case.
* src/tools/glnames.py (StringTable::dump,
StringTable::dump_sublist, dump_encoding, dump_array): Emit
additional code to only define tables if `DEFINE_PS_TABLES' is set.
* src/psnames/pstables.h: Regenerated.
* src/psnames/psmodule.c (DEFINE_PS_TABLES): Define.
2016-12-28 Werner Lemberg <[email protected]>
[cff] Catch `blend' op in non-variant fonts.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=334
* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdBLEND>: Don't
allow `blend' op for non-variant fonts.
2016-12-28 Werner Lemberg <[email protected]>
[cff] Better check of number of blends.
* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdBLEND>,
src/cff/cffparse.c (cff_parse_blend): Compare number of blends with
stack size.
2016-12-27 Werner Lemberg <[email protected]>
Documentation updates.
* docs/CHANGES: Add missing information.
* docs/formats.txt: Rewritten and updated.
2016-12-27 Werner Lemberg <[email protected]>
[truetype, type1] Implement `FT_Get_Var_Design_Coordinates'.
* src/truetype/ttgxvar.c (TT_Get_Var_Design): Implement.
(TT_Set_Var_Design): Fix tracing.
* src/type1/t1load.c (T1_Get_Var_Design): Implement.
2016-12-24 Werner Lemberg <[email protected]>
* src/truetype/ttpload.c (tt_face_load_hdmx): Ignore `version'.
Problem reported by 張俊芝 <[email protected]>.
2016-12-24 Werner Lemberg <[email protected]>
* src/sfnt/ttsbit.c (tt_face_load_sbit): Allow more version values.
Some fonts seem to have the `version' field in the wrong byte order.
Problem reported by 張俊芝 <[email protected]>.
2016-12-24 Werner Lemberg <[email protected]>
* src/truetype/ttpload.c (tt_face_load_loca): Sanitize table length.
This trivial fix allows us to accept more fonts.
Problem reported by 張俊芝 <[email protected]>.
2016-12-24 Werner Lemberg <[email protected]>
* src/sfnt/sfobjs.c (sfnt_init_face): Fix tracing.
2016-12-22 Werner Lemberg <[email protected]>
* CMakeLists.txt: Make it work with cmake 2.8.11.2 (#49909).
2016-12-22 Werner Lemberg <[email protected]>
Ensure used preprocessor symbols are defined (#49790).
* builds/unix/ftconfig.in, builds/vms/ftconfig.h,
include/freetype/config/ftconfig.h: Check `__GNUC__', `__IBMC__',
and `__SUNPRO_C' correctly.
2016-12-22 Werner Lemberg <[email protected]>
* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Check `count'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=308
2016-12-22 Werner Lemberg <[email protected]>
[cff] Protect against invalid `vsindex' and `blend' values.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=305
* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdVSINDEX,
cf2_cmdBLEND>: Implement it.
2016-12-22 Werner Lemberg <[email protected]>
[ftfuzzer] Always use Adobe CFF engine.
* src/tools/ftfuzzer/ftfuzzer.cc (FT_Global::FT_Global): Implement
it.
2016-12-21 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Thinko.
I should really stop coding late in the evening...
Thanks again to Ben for checking.
2016-12-21 Werner Lemberg <[email protected]>
[autofit] Support variation fonts.
(This ChangeLog entry was added later on.)
* src/autofit/afglobal.c (af_face_globals_free): Remove useless
code.
* src/base/ftmm.c (FT_Set_MM_Design_Coordinates,
* FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates,
FT_Set_Var_Blend_Coordinates): Finalize
auto-hinter data to enforce recomputation. Note that this is a
brute-force method which should be improved.
2016-12-21 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Thinko.
Don't apply deltas twice for non-phantom points.
Spotted by Ben Wagner.
2016-12-21 Werner Lemberg <[email protected]>
[cff, truetype] Another try for #49829.
* src/cff/cffdrivr.c: Don't include
`FT_SERVICE_METRICS_VARIATIONS_H'.
(cff_get_advances): Use `ttface->variation_support'.
* src/truetype/ttdriver.c (tt_get_advances): Use
`ttface->variation_support'.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph,
load_truetype_glyph): Use `ttface->variation_support'.
2016-12-21 Werner Lemberg <[email protected]>
[truetype, sfnt] Introduce font variation flags to `TT_Face'.
* include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX):
New macros describing available functionality of various OpenType
tables related to font variation.
(TT_Face): New fields `variation_support' and `mvar_support',
replacing and extending `use_fvar'.
* src/sfnt/sfobjs.c (sfnt_init_face, sfnt_load_face): Use
`variation_support'.
* src/truetype/ttgxvar.c (ft_var_load_hvar): Set `variation_support'
field.
(TT_Vary_Apply_Glyph_Deltas): Updated.
2016-12-21 Werner Lemberg <[email protected]>
[base] Improve sanity check for Mac resources (#49888).
* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Abort if `rlen' is not
positive.
2016-12-20 Werner Lemberg <[email protected]>
[base] More sanity checks for Mac resources.
We use
https://github.com/kreativekorp/ksfl/wiki/Macintosh-Resource-File-Format
and
https://developer.apple.com/legacy/library/documentation/mac/pdf/MoreMacintoshToolbox.pdf#page=151
as references.
* include/freetype/internal/ftrfork.h (FT_RFork_Ref): Use FT_Short
for `res_id'.
* src/base/ftrfork.c (FT_Raccess_Get_HeaderInfo): Extract map length
and use it to improve sanity checks.
Follow the specification more closely;in particular, all data types
are signed, not unsigned.
(FT_Raccess_Get_DataOffsets): Follow the specification more closely;
in particular, all data types are signed, not unsigned.
Add some sanity checks.
2016-12-20 Werner Lemberg <[email protected]>
[truetype] Improve logic for getting fast advance widths.
* src/cff/cffdrivr.c (cff_get_advances), src/truetype/ttdriver.c
(tt_get_advances): Use `is_default_instance' for test; this gets
recomputed after changing blend coordinates.
2016-12-20 Ben Wagner <[email protected]>
Werner Lemberg <[email protected]>
[truetype] Fix linear metrics of GX variation fonts (#49829).
When asking for an unhinted non-default variations,
`linearVertAdvance' is currently the value from the `hmtx' table
instead of the actual value after applying the variation. `HVAR'
support fixes this, but fonts will exist without that table and will
need sane fallback.
Problem also reported as
https://bugs.chromium.org/p/skia/issues/detail?id=5917
* src/truetype/ttgload.c (TT_Process_Simple_Glyph,
load_truetype_glyph): Implement linear advance adjustments if `HVAR'
or `VVAR' tables are missing.
2016-12-20 Werner Lemberg <[email protected]>
[cff, truetype] Fast advance width retrieval for fonts with HVAR.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Don't handle MM.
* src/cff/cffdrivr.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(cff_get_advances): Test for HVAR and VVAR.
* src/truetype/ttdriver.c (tt_get_advances): Test for HVAR and VVAR.
2016-12-18 Werner Lemberg <[email protected]>
[base] Fix invalid mac font recursion.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=304
* src/base/ftobjs.c (FT_Open_Face): Code moved to...
(ft_open_face_internal): ... this function.
Add a parameter to control whether we try special Mac font handling
in case of failure.
(FT_Open_Face, FT_New_Face, FT_New_Memory_Face,
open_face_from_buffer): Use `ft_open_face_internal'.
2016-12-18 Werner Lemberg <[email protected]>
* src/cff/cffobjs.c (cff_face_init): Make named instances work.
2016-12-18 Werner Lemberg <[email protected]>
[truetype, cff] Extend `get_var_blend' function of MM service.
In particular, we need access to named instance data.
* include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func):
Add argument for `FT_MM_Var'.
* src/cff/cffload.c (cff_get_var_blend): Updated.
* src/cff/cffload.h: Updated.
* src/cff/cf2ft.c (cf2_getNormalizedVector): Updated.
* src/truetype/ttgxvar.c (tt_get_var_blend): Updated.
Accept value `NULL' for arguments.
* src/truetype/ttgxvar.h: Updated.
2016-12-18 Werner Lemberg <[email protected]>
[sfnt] Handle `fvar' with zero axes as a non-MM font.
This is better behaviour than exiting with an error.
* include/freetype/internal/tttypes.h (TT_Face): Add `use_fvar'
field.
* src/sfnt/sfobjs.c (sfnt_init_face): Compute `use_fvar', also
updating the validation code.
Use `use_fvar' to compute FT_FACE_FLAG_MULTIPLE_MASTERS.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Remove `fvar' validation
code.
2016-12-18 Werner Lemberg <[email protected]>
Minor GX code shuffling.
* include/freetype/internal/tttypes.h (TT_Face): Move
`is_default_instance' into TT_CONFIG_OPTION_GX_VAR_SUPPORT
block.
* src/sfnt/sfobjs.c (sfnt_init_face): Updated.
* src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): New macro.
(TT_Load_Glyph): Use it.
2016-12-18 Werner Lemberg <[email protected]>
[cff] Better handling of non-CFF font formats.
* src/cff/cffload.c (cff_font_load): Pure CFFs don't have a
signature, so return `FT_Err_Unknown_File_Format' more often.
2016-12-17 Werner Lemberg <[email protected]>
* src/cff/cffload.c (cff_build_blend_vector): Remove redundant code.
2016-12-17 Werner Lemberg <[email protected]>
* src/truetype/ttobjs.c (tt_face_init): Simplify conditional code.
2016-12-17 Werner Lemberg <[email protected]>
[sfnt, truetype] Various sanitizing fixes.
* src/sfnt/sfobjs.c (sfnt_init_face): If the axis count in `fvar' is
zero, set `num_instances' to zero.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Handle `fvar' table with
zero axes as invalid.
* src/truetype/ttobjs.c (tt_face_init): Improve logic of loading
`loca', `cvt', `fpgm', and `prep' table.
2016-12-17 Werner Lemberg <[email protected]>
Improve tracing of `FT_Open_Face'.
* src/base/ftobjs.c (FT_Open_Face): Return info on number of
available faces and numbered instances, or the indices of the
requested face and numbered instance.
* src/sfnt/sfobjs. (sfnt_open_font): Trace number of subfonts.
2016-12-17 Werner Lemberg <[email protected]>
* src/cff/cffload.c (cff_load_private_dict): Always init `blend'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=295
2016-12-16 Werner Lemberg <[email protected]>
[truetype] Fix `cvar' sanity test.
Reported by Dave Arnold.
* src/truetype/ttgxvar.c (tt_face_vary_cvt): Use tuple count mask.
2016-12-16 Werner Lemberg <[email protected]>
[cff, truetype] Remove compiler warnings; fix `make multi'.
* src/cff/cf2font.h: Include `cffload.h'.
* src/cff/cffload.c: Include FT_MULTIPLE_MASTERS_H and
FT_SERVICE_MULTIPLE_MASTERS_H.
(cff_vstore_load): Eliminate `vsSize'.
(cff_load_private_dict): Tag as `FT_LOCAL_DEF'.
* src/cff/cffload.h: Include `cffobjs.h'.
Provide declaration for `cff_load_private_dict'.
* src/truetype/ttgxvar.c (ft_var_load_hvar): Eliminate
`minorVersion' and `map_offset'.
2016-12-16 Werner Lemberg <[email protected]>
[cff] Fix heap buffer overflow (#49858).
* src/cff/cffparse.c (cff_parser_run): Add one more stack size
check.
2016-12-15 Werner Lemberg <[email protected]>
Fix clang warnings.
* src/cff/cffload.c (cff_blend_doBlend): Add cast.
(cff_subfont_load): Set `error' correctly.
* src/sfnt/ttmtx.c (tt_face_get_metrics): Typo.
2016-12-15 Dave Arnold <[email protected]>
Werner Lemberg <[email protected]>
[cff] Implement CFF2 support (2/2).
The font variation code. All parts dependent on the GX code in the
`truetype' module are guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
In other words, you can still compile the `cff' module without
defining TT_CONFIG_OPTION_GX_VAR_SUPPORT (which brings you CFF2
support without font variation).
* src/cff/cf2font.c (cf2_font_setup): Add support for font
variation.
* src/cff/cf2font.h (CF2_Font): Add fields for variation data.
* src/cff/cf2ft.c (cf2_free_instance): Free blend data.
(cf2_getVStore, cf2_getNormalizedVector): New functions.
* src/cff/cf2ft.h: Updated.
* src/cff/cf2intrp.c: Include `cffload.h'.
(cf2_cmdRESERVED_15, cf2_cmdRESERVED_16): Replace with...
(cf2_cmdVSINDEX, cf2_cmdBLEND): ... this new enum values.
(cf2_doBlend): New function.
(cf2_interpT2CharString): Handle `vsindex' and `blend' opcodes.
* src/cff/cffload.c (FT_fdot14ToFixed): New macro.
(cff_vstore_done, cff_vstore_load): New functions.
(cff_blend_clear, cff_blend_doBlend, cff_blend_build_vector,
cff_blend_check_vector): New functions.
(cff_load_private_dict): Add arguments for blend vector.
Handle blend data.
(cff_subfont_load, cff_subfont_done): Updated.
(cff_font_load): Handle CFF2 variation store data.
(cff_font_done): Updated.
* src/cff/cffload.h: Include `cffparse.h'.
Updated.
* src/cff/cffobjs.c (cff_face_done): Updated.
* src/cff/cffparse.c: Include `cffload.h'.
(cff_parse_num): Handle internal value 255.
(cff_parse_vsindex, cff_parse_blend): New functions.
(CFF_FIELD_BLEND): New macro.
(cff_parser_run): Updated.
* src/cff/cffparse.h (cff_kind_blend): New enum value.
* src/cff/cfftoken.h: Handle `vstore', `vsindex', and `blend'
dictionary values.
* src/cff/cfftypes.h (CFF_VarData, CFF_AxisCoords, CFF_VarRegion,
CFF_VStore, CFF_Blend): New structures.
(CFF_FontRecDict): Add `vstore_offset' field.
(CFF_Private): Add `vsindex' field.
(CFF_SubFont): Add fields for blend data.
(CFF_Font): Add `vstore' field.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): `CFF2' is equal to `gvar',
since glyph variation data is directly embedded.
(TT_Set_MM_Blend): Don't load `gvar' table for CFF2 fonts.
2016-12-15 Dave Arnold <[email protected]>
Werner Lemberg <[email protected]>
[cff] Implement CFF2 support (1/2).
This commit does not contain the blend code for font variation
support, which follows in another commit.
You should ignore whitespace while inspecting this commit.
* include/freetype/internal/tttypes.h (TT_Face): Add `isCFF2'
member.
* src/cff/cf2font.h (CF2_Font): Add `isCFF2' member.
* src/cff/cf2ft.c (cf2_decoder_parse_charstrings): Handle `isCFF2'
flag.
(cf2_getMaxstack): New function.
* src/cff/cf2ft.h: Updated.
* src/cff/cf2intrp.c (cf2_escRESERVED_38): New enum.
(cf2_interpT2CharString): Handle CFF2 differences.
Add tracing message for errors.
* src/cff/cffdrivr.c (cff_get_glyph_name, cff_get_name_index):
Update for CFF2.
* src/cff/cffload.c (FT_FIXED_ONE): New macro.
(cff_index_init, cff_index_load_offsets, cff_index_access_element,
cff_index_get_name, cff_ft_select_get, cff_load_private_dict,
cff_subfont_load, cff_font_load): Handle CFF2.
* src/cff/cffload.h: Updated.
* src/cff/cffobjs.c (cff_face_init): Handle CFF2.
* src/cff/cffparse.c (cff_parse_maxstack): New function.
(CFFCODE_TOPDICT, CFFCODE_PRIVATE): Removed
* src/cff/cffparse.h (CFF2_MAX_STACK, CFF2_DEFAULT_STACK): New
macros.
(CFF2_CODE_TOPDICT, CFF2_CODE_FONTDICT, CFF2_CODE_PRIVATE): New
macros.
* src/cff/cfftoken.h: Add fields for CFF2 dictionaries (but no blend
stuff).
* src/cff/cfftypes.h (CFF_Index): Add `hdr_size' field.
(CFF_FontRecDict): Add `maxstack' field.
(CFF_Private): Add `subfont' field.
(CFF_Font): Add `top_dict_length' and `cff2' fields.
* src/sfnt/sfobjs.c (sfnt_load_face): Handle `CFF2' table.
2016-12-15 Werner Lemberg <[email protected]>
Dave Arnold <[email protected]>
[truetype] Provide HVAR advance width variation as a service.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* src/truetype/ttdriver.c (tt_service_metrics_variations): Updated.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Prevent
double adjustment of advance width.
* src/sfnt/ttmtx.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(tt_face_get_metrics): Apply metrics variations.
2016-12-15 Dave Arnold <[email protected]>
Werner Lemberg <[email protected]>
[truetype] Provide function to apply `HVAR' advance width variation.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* src/truetype/ttgxvar.c (tt_hadvance_adjust): New function.
* src/truetype/ttgxvar.h: Updated.
2016-12-15 Dave Arnold <[email protected]>
Werner Lemberg <[email protected]>
[truetype] Add `HVAR' table parsing.
Note that this is not complete yet; it only handles advance width
variation.
Activation of the code follows in another commit.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* include/freetype/ftmm.h (FT_Var_Named_Style): Add `psid' member.
* src/truetype/ttgxvar.h (GX_HVarData, GX_AxisCoords, GX_HVarRegion,
GX_HVStore, GX_WidthMap): New auxiliary structures for...
(GX_HVarTable): ... HVAR main structure.
(GX_BlendRec): Add data for HVAR loading.
* src/truetype/ttgxvar.c (FT_FIXED_ONE, FT_fdot14ToFixed,
FT_intToFixed, FT_fixedToInt): New macros.
(ft_var_load_hvar): New function.
(TT_Get_MM_Var): Updated.
(tt_done_blend): Deallocate HVAR data.
2016-12-15 Dave Arnold <[email protected]>
[cff] Extend number parsing.
The forthcoming CFF2 support needs a dynamic parsing limit.
* src/cff/cffparse.c (cff_parse_num, do_fixed, cff_parse_fixed,
cff_parse_fixed_scaled, cff_parse_fixed_dynamic): Add argument for
parser.
(cff_parse_font_matrix, cff_parse_font_bbox, cff_parse_private_dict,
cff_parse_multiple_master, cff_parse_cid_ros, cff_parser_run): Updated.
* src/cff/cffparse.h (cff_parse_num): Export locally.
2016-12-15 Dave Arnold <[email protected]>
[cff] Implement dynamic stack size for Adobe engine.
This also adds `cf2_stack_setReal' and `cf2_stack_pop', needed for
the forthcoming CFF2 support.
* src/cff/cf2stack.c (cf2_stack_init): Add argument for stack size.
(cf2_stack_free): Deallocate stack.
(cf2_stack_count, cf2_stack_pushInt, cf2_stack_pushFixed,
cf2_stack_popInt, cf2_stack_popFixed, cf2_stack_getReal,
cf2_stack_clear): Updated.
(cf2_stack_setReal, cf2_stack_pop): New functions.
* src/cff/cf2stack.h (CF2_Stack): Add `stackSize' member.
Update function declarations.
* src/cff/cf2intrp.c (cf2_interpT2CharString): Updated.
* src/cff/cffparse.c (cff_parser_init): Add parameter for stack
size; return error code.
(cff_parser_done): New function.
(cff_parser_run): Updated.
* src/cff/cffparse.h (CFF_Parser): Add `stackSize' member and make
`stack' a pointer.
Update function declarations.
* src/cff/cffload.c (cff_load_private_dict, cff_subfont_load):
Updated.
2016-12-15 Dave Arnold <[email protected]>
Werner Lemberg <[email protected]>
[cff] Code shuffling.
* src/cff/cfftypes.h (CFF_Font): Add `library' and `base_offset'
fields.
* src/cff/cffload.c (cff_subfont_load): Change last argument to
`CFF_Font'
Split off parsing of private dictionary into...
(cff_load_private_dict): ...this new function.
(cff_font_load): Updated.
2016-12-14 Werner Lemberg <[email protected]>
[sfnt, truetype] Add framework for Metrics Variations service.
No effect yet; service functions will be implemented later on.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* include/freetype/internal/services/svmetric.h: New file.
* include/freetype/internal/ftserv.h
(FT_SERVICE_METRICS_VARIATIONS_H): New macro.
* include/freetype/internal/tttypes.h (TT_Face): New field `var'.
* src/sfnt/sfobjs.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(sfnt_init_face): Initialize `face->var'.
* src/truetype/ttdriver.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(tt_service_metrics_variations): New service.
(tt_services): Updated.
* src/truetype/ttpic.h: Updated.
2016-12-14 Werner Lemberg <[email protected]>
[cff] Add Multiple Masters service.
The code simply uses the MM functions from the `truetype' module.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* include/freetype/internal/tttypes.h (TT_Face): New field `mm'.
* src/cff/cffdrivr.c: Include FT_SERVICE_MULTIPLE_MASTERS_H.
(cff_set_mm_blend, cff_get_mm_blend, cff_get_mm_var,
cff_set_var_design, cff_get_var_design): New functions.
(cff_service_multi_masters): New service.
(cff_services): Updated.
* src/cff/cffload.c (cff_get_var_blend, cff_done_blend): New
functions.
* src/cff/cffload.h: Updated.
* src/cff/cffpic.h (CFF_SERVICE_MULTI_MASTERS_GET): New macro.
* src/sfnt/sfobjs.c: Include FT_SERVICE_MULTIPLE_MASTERS_H.
(sfnt_init_face): Initialize `face->mm'.
2016-12-14 Werner Lemberg <[email protected]>
Extend functionality of `ft_module_get_service'.
It can now differentiate between local and global searches.
* src/base/ftobjs.c (ft_module_get_service): Add `global' argument.
(FT_Get_TrueType_Engine_Type): Updated.
* src/cff/cffdrivr.c (cff_get_ps_name, cff_get_cmap_info): Updated.
* include/freetype/internal/ftobjs.h: Updated.
* include/freetype/internal/ftserv.h (FT_FACE_FIND_GLOBAL_SERVICE):
Updated.
2016-12-14 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (tt_get_var_blend): Fix compiler warning.
2016-12-14 Dave Arnold <[email protected]>
Werner Lemberg <[email protected]>
[sfnt, cff] Minor preparations.
* include/freetype/tttags.h (TTAG_CFF2, TTAG_HVAR, TTAG_MVAR,
TTAG_VVAR): New SFNT table tags.
* src/cff/cf2fixed.h (CF2_FIXED_ONE, CF2_FIXED_EPSILON): Add cast.
2016-12-10 Werner Lemberg <[email protected]>
[truetype, type1] Add `get_var_blend' to MM service.
For internal use; we want to share code between the forthcoming CFF2
support and TrueType.
* include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func):
New typedef.
(MultiMasters): Add `get_var_blend'.
(FT_Service_MultiMasters): Updated.
* src/truetype/ttgxvar.c (tt_get_var_blend): New function.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Updated.
2016-12-10 Werner Lemberg <[email protected]>
[truetype, type1] Add `done_blend' to MM service.
For internal use; we want to share code between the forthcoming CFF2
support and TrueType.
* include/freetype/internal/services/svmm.h (FT_Done_Blend_Func):
New typedef.
(MultiMasters): Add `done_blend'.
(FT_Service_MultiMasters): Updated.
* src/truetype/ttgxvar.c (tt_done_blend): Use `TT_Face' as argument.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttobjs.c (TT_Face_Done): Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Updated.
2016-12-09 Werner Lemberg <[email protected]>
[sfnt] Revert change from 2016-12-08.
I missed the functionality of `ft_module_get_service', which makes
the change unnecessary.
2016-12-08 Werner Lemberg <[email protected]>
Add framework to support services with 8 functions.
We will need this for CFF variation font support.
* include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC8):
New macro.
2016-12-08 Werner Lemberg <[email protected]>
[sfnt] Add `get_glyph_name' and `get_name_index' to SFNT interface.
CFF2 fonts will need access to those two functions.
* include/freetype/internal/sfnt.h: Include FT_SERVICE_GLYPH_DICT_H.
(SFNT_Interface): Add `get_glyph_name' and `get_name_index' members.
(FT_DEFINE_SFNT_INTERFACE): Updated.
* src/sfnt/sfdriver.c (sfnt_get_glyph_name, sfnt_get_name_index):
Fix signatures to exactly correspond to the glyph dict service
function typedefs.
(sfnt_interface): Updated.
2016-12-06 Dave Arnold <[email protected]>
Add `FT_Get_Var_Design_Coordinates' function.
Note that the low-level functions aren't implemented yet.
* include/freetype/ftmm.h: Declare.
* include/freetype/internal/services/svmm.h
(FT_Get_Var_Design_Func): New typedef.
(MultiMasters): New MM service function `get_var_design'.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.
Update all callers.
* src/base/ftmm.c (FT_Get_Var_Design_Coordinates): Implement.
* src/truetype/ttdriver.c: Updated.
* src/truetype/ttgxvar.c (TT_Get_Var_Design): New dummy function to
handle `get_var_design' service.
* src/truetype/ttgxvar.h: Updated.
* src/type1/t1driver.c: Updated.
* src/type1/t1load.c (T1_Get_Var_Design): New dump function to
handle `get_var_design' service.
* src/type1/t1load.h: Updated.
2016-12-06 Werner Lemberg <[email protected]>
* src/type1/t1load.c (parse_subrs): Fix memory leak.
The `subrs' keyword might erroneously occur multiple times.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=231
2016-12-01 Werner Lemberg <[email protected]>
[gzip] Improve building with external zlib (#49673).
Building FreeType with external zlib 1.2.8 makes msvc 14 stop with
the following error.
ftgzip.c
zlib-1.2.8\zlib.h(86): error C2061:
syntax error: identifier 'z_const'
zlib-1.2.8\zlib.h(94): error C2054:
expected '(' to follow 'z_const'
zlib-1.2.8\zlib.h(94): error C2085:
'msg': not in formal parameter list
...
zlib-1.2.8\zlib.h(877): fatal error C1003:
error count exceeds 100; stopping compilation
The error happens because FreeType keeps an own copy of zlib-1.1.4
under `src/gzip'. When building `src/gzip/ftgzip.c' with
FT_CONFIG_OPTION_SYSTEM_ZLIB defined, it uses
#include <zlib.h>
which correctly finds an external `zlib.h', but `zlib.h' itself has
a line
#include "zconf.h"
which makes Visual Studio 2015 find `src/gzip/zconf.h' while
compiling the files in `src/gzip'.
* src/gzip/zconf.h: Rename to...
* src/gzip/ftzconf.h: ... this.
* src/gzip/zlib.h, src/gzip/rules.mk (GZIP_DRV_SRCS): Updated.
2016-12-01 Oleksandr Chekhovskyi <[email protected]>
[autofit] Fix Emscripten crash (patch #9180).
Function calls through pointers must use a matching signature to
work on Emscripten, since such calls are dispatched through lookup
tables grouped by signature.
* src/autofit/aftypes.h (AF_WritingSystem_ApplyHintsFunc): Fix
typedef.
2016-11-29 Werner Lemberg <[email protected]>
[smooth] Revert previous commit. Already fixed with 6ca54c64.
2016-11-29 Werner Lemberg <[email protected]>
[smooth] Avoid conditional jump on uninitialized value (#49711).
* src/smooth/ftgrays.c (gray_raster_render): Initialize `worker'.
2016-11-27 Nikolaus Waxweiler <[email protected]>
[autofit] Code shuffling.
Also improve some comments and remove unused code.
No functional change.
* src/autofit/afloader.c (af_loader_load_g): Merged with...
(af_loader_load_glyph): ...this function.
Split off emboldening code into...
(af_loader_embolden_glyph_in_slot): ... this function.
2016-11-17 Werner Lemberg <[email protected]>
Better support of LLP64 systems with gcc (and clang).
* builds/unix/configure.raw: Call `AC_TYPE_LONG_LONG_INT'.
* builds/unix/ftconfig.in (FT_LONG64): Enable for LLP64 systems (and
suppress warnings) even without `FT_CONFIG_OPTION_FORCE_INT64'.
2016-11-10 Werner Lemberg <[email protected]>
Fix `lcd_weights' array size.
* include/freetype/internal/ftobjs.h (FT_LibraryRec): Do it.
Reported by Nikolaus.
2016-11-06 Werner Lemberg <[email protected]>
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Fix tracing.
2016-11-06 Werner Lemberg <[email protected]>
[sfnt] Improve FT_LOAD_BITMAP_METRICS_ONLY for `sbix' format.
It's unavoidable to call the PNG engine, but to get the metrics it
is sufficient to read the PNG image's header only.
* src/sfnt/pngshim.c (Load_SBit_Png): Add argument to control the
allocation of the glyph slot.
* src/sfnt/pngshim.h: Updated.
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_png,
tt_face_load_sbix_image, tt_face_load_sbit_image): Updated.
2016-11-06 Werner Lemberg <[email protected]>
[sfnt] Speed up `sbix' lookup.
This also fixes a bug introduced in 2016-10-01 which prevents
display of embedded bitmap fonts that use the `sbix' format.
* src/sfnt/ttsbit.c (tt_face_load_sbit): Store `sbix' size and
offset also in `ebdt_size' and `ebdt_start', respectively. This
makes the test for an embedded bitmap data table succeed for this
format.
(tt_face_load_strike_metrics) <TT_SBIT_TABLE_TYPE_SBIX>: Use
`ebdt_size' and `ebdt_start'
(tt_face_load_sbix_image): Ditto.
2016-11-06 Seigo Nonaka <[email protected]>
Werner Lemberg <[email protected]>
Introduce a way of quickly retrieving (embedded) bitmap metrics.
`FT_Load_Glyph' doesn't generate a bitmap for a non-bitmap glyph
until the user calls `FT_Render_Glyph'. However, it always
allocates memory for bitmaps and copies or decodes the contents of a
bitmap glyph, which can be quite slow for PNG data.
* include/freetype/freetype.h (FT_LOAD_BITMAP_METRICS_ONLY): New
macro.
* src/base/ftobjs.c (FT_Load_Glyph): Unset FT_LOAD_RENDER if
FT_LOAD_BITMAP_METRICS_ONLY is used.
* src/sfnt/ttsbit.c (tt_sbit_decoder_alloc_bitmap,
tt_sbit_decoder_load_bitmap): Add argument to control allocation of
the glyph slot.
(tt_sbit_decoder_load_image, tt_sbit_decoder_load_compound,
tt_face_load_sbit_image): Updated.
* src/pcf/pcfdrivr.c (PCF_Glyph_Load): Quickly exit if
`FT_LOAD_BITMAP_METRICS_ONLY' is set.
* src/pfr/pfrsbit.c, src/pfr/pfrsbit.h (pfr_slot_load_bitmap): Add
argument to control allocation of the glyph slot.
* src/pfr/pfrobjs (pfr_slot_load): Updated.
* src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto.
* docs/CHANGES: Updated.
2016-11-06 Werner Lemberg <[email protected]>
Synchronize with gnulib (#49448).
* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h (FT_TYPEOF): Update code to use definition in
current version of `intprops.h'.
Other minor synchronization to reduce code differences between the
three files.
2016-11-03 Behdad Esfahbod <[email protected]>
[truetype] Clamp variation requests to valid range.
This is required by OpenType 1.8; it also avoids rounding surprises.
* src/truetype/ttgxvar.c (TT_Set_Var_Design): Clamp design coordinates
outside of the allowed range to always stay within the range instead
of producing an error.
2016-10-29 Werner Lemberg <[email protected]>
[truetype] Remove clang warnings.
* src/truetype/ttinterp.h (TT_ExecContextRec): Using `FT_ULong' for
loop counter handling.
* src/truetype/ttinterp.c: Updated.
(Ins_SCANTYPE): Use signed constant.
(TT_RunIns): Ensure `num_twilight_points' is 16bit.
2016-10-27 Werner Lemberg <[email protected]>
[truetype] Fix commit from 2014-11-24.
Problem reported by Hin-Tak Leung <[email protected]>.
* src/truetype/ttpload.c (tt_face_load_hdmx): Fix file checking
logic.
2016-10-26 Werner Lemberg <[email protected]>
Add `FT_Get_{MM,Var}_Blend_Coordinates' functions.
* include/freetype/ftmm.h: Declare.
* include/freetype/internal/services/svmm.h (FT_Get_MM_Blend_Func):
New typedef.
(MultiMasters): New MM service function `get_mm_blend'.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.
Update all callers.
* src/base/ftmm.c (FT_Get_MM_Blend_Coordinates,
FT_Get_Var_Blend_Coordinates): Implement.
* src/truetype/ttdriver.c: Updated.
* src/truetype/ttgxvar.c (TT_Get_MM_Blend): New function to handle
`get_mm_blend' service.
* src/truetype/ttgxvar.h: Updated.
* src/type1/t1driver.c: Updated.
* src/type1/t1load.c (T1_Get_MM_Blend): New function to handle
`get_mm_blend' service.
* src/type1/t1load.h: Updated.
* docs/CHANGES: Document.
2016-10-26 Werner Lemberg <[email protected]>
* src/type1/t1load.c (parse_subrs): Fix limit check.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=81
2016-10-25 Alexei Podtelezhnikov <[email protected]>
[cff] Correct cmap format reporting (#24819).
* src/cff/cffdrivr.c (cff_get_cmap_info): Throw an error on synthetic
charmap instead of guessing its format and language.
2016-10-22 Werner Lemberg <[email protected]>
[truetype] Fix SCANTYPE instruction (#49394).
* src/truetype/ttinterp.c (Ins_SCANTYPE): Only use lower 16bits.
2016-10-22 Werner Lemberg <[email protected]>
[sfnt] Improve handling of invalid post 2.5 tables [#49393].
* src/sfnt/ttpost.c (load_format_25): We need at least a single
table entry.
2016-10-14 Werner Lemberg <[email protected]>
[truetype] Fix handling of `cvar' table data.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53
* src/truetype/ttgxvar.c (tt_face_vary_cvt): Ignore invalid CVT
indices.
2016-10-11 Werner Lemberg <[email protected]>
[psaux] Fix handling of invalid flex subrs.
Problem reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52
* src/psaux/t1decode.c (t1_decoder_parse_charstrings)
<op_callothersubr>: Set `flex_state' after error checking.
2016-10-11 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (tt_done_blend): Fix deallocation.
2016-10-08 Werner Lemberg <[email protected]>
* src/cid/cidload.c (cid_face_open): Properly propagate `error'.
2016-10-08 Werner Lemberg <[email protected]>
[cid] Fix parsing of subr offsets.
Bug introduced 2016-05-16.
* src/cid/cidparse.c (cid_parser_new): Fix off-by-one error.
2016-10-01 Werner Lemberg <[email protected]>
[sfnt] Disable bitmap strikes if we don't have a bitmap data table.
* src/sfnt/ttsbit.c (tt_face_load_sbit): Check whether we have
a bitmap data table.
2016-10-01 Alexei Podtelezhnikov <[email protected]>
[smooth] Remove impossibility.
* src/smooth/ftgrays.c (TWorker): Rearrange fields.
(gray_convert_glyph): Remove impossible condition and clean up.
2016-09-29 Werner Lemberg <[email protected]>
[pcf] Enrich family name with foundry name and glyph width info.
This is a very old patch from openSuSE (from 2006, submitted to
FreeType in 2011) that I forgot to apply.
https://build.opensuse.org/package/view_file/openSUSE:Factory/freetype2/freetype2-bitmap-foundry.patch
Prepend the foundry name plus a space to the family name. There are
many fonts just called `Fixed' which look completely different, and
which have nothing to do with each other. When selecting `Fixed' in
KDE or Gnome one gets results that appear rather random, the style
changes often if one changes the size and one cannot select some
fonts at all.
We also check whether we have `wide' characters; all put together,
we get family names like `Sony Fixed' or `Misc Fixed Wide'.
* src/pcf/pcfread.c (pcf_load_font): Implement it.
* docs/CHANGES: Document it.
2016-09-29 Werner Lemberg <[email protected]>
[ftfuzzer] Speed up.
* src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Don't
check for embedded bitmaps if we have a non-default instance.
2016-09-29 Werner Lemberg <[email protected]>
[truetype] Disallow bitmap strokes for non-default instances.
Also speed up access of default instances if GX variations are
active.
* include/freetype/internal/tttypes.h (TT_FaceRec): Add
`is_default_instance' member.
* src/sfnt/sfobjs.c (sfnt_init_face): Initialize
`is_default_instance'.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph,
load_truetype_glyph): Add test for default instance.
(TT_Load_Glyph): Load embedded bitmaps for default instance only.
* src/truetype/ttgxvar.c (TT_Set_MM_Blend): Compute
`is_default_instance'.
2016-09-29 Werner Lemberg <[email protected]>
[truetype] Clean up `TT_Face' structure.
* include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused
fields `horz_metrics' and `vert_metrics'.
Update documentation.
* src/sfnt/sfobjs.c (sfnt_done_face): Updated.
2016-09-28 Werner Lemberg <[email protected]>
More FT_ZERO usage.
* src/gxvalid/gxvcommn.c (gxv_ClassTable_validate):
s/ft_memset/FT_MEM_ZERO/.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings):
s/ft_memset/FT_ARRAY_ZERO/.
* src/raster/ftraster.c (FT_ZERO): Define.
(ft_black_new): Use it.
* src/raster/ftrend1.c (ft_raster1_get_cbox):
s/FT_MEM_ZERO/FT_ZERO/.
* src/smooth/ftgrays.c (FT_ZERO): Define.
(gray_raster_new): Use it.
* src/smooth/ftsmooth.c (ft_smooth_get_cbox):
s/FT_MEM_ZERO/FT_ZERO/.
2016-09-28 Werner Lemberg <[email protected]>
*/*: s/FT_MEM_ZERO/FT_ZERO/ where appropriate.
2016-09-27 Werner Lemberg <[email protected]>
[truetype] Trace number of executed opcodes.
* src/truetype/ttinterp.c (TT_RunIns): Implement it.
2016-09-27 Werner Lemberg <[email protected]>
[truetype] Speed up `TT_Load_Glyph'.
This avoids additional calls to `tt_face_lookup_table' for the
`glyf' table, which can be expensive.
* include/freetype/internal/tttypes.h (TT_LoaderRec): Move
`glyf_offset' field to ...
(TT_FaceRec): ... this structure.
* src/truetype/ttgload.c (load_truetype_glyph): Updated.
(tt_loader_init): Move initialization of `glyf_offset' to ...
* src/truetype/ttpload.c (tt_face_load_loca): ... this function.
2016-09-27 Werner Lemberg <[email protected]>
[truetype] Introduce dynamic limits for some bytecode opcodes.
This speeds up FreeType's handling of malformed fonts.
* src/truetype/ttinterp.c (TT_RunIns): Set up limits for the number
of twilight points, the total number of negative jumps, and the
total number of loops in LOOPCALL opcodes. The values are based on
the number of points and entries in the CVT table.
(Ins_JMPR): Test negative jump counter.
(Ins_LOOPCALL): Test loopcall counter.
* src/truetype/ttinterp.h (TT_ExecContext): Updated.
* docs/CHANGES: Updated.
2016-09-25 Werner Lemberg <[email protected]>
[truetype] Sanitize only last entry of `loca' table.
Without this patch, a loca sequence like `0 100000 0 100000 ...',
where value 100000 is larger than the `glyf' table size, makes
FreeType handle the whole `glyf' table as a single glyph again and
again, which is certainly invalid (and can be very slow, too).
* src/truetype/ttpload.c (tt_face_get_location): Implement.
Improve tracing messages.
2016-09-25 Werner Lemberg <[email protected]>
* src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Fix typo.
2016-09-24 Werner Lemberg <[email protected]>
[autofit] Tracing fixes.
* src/autofit/afmodule.c (af_autofitter_load_glyph): Call dumping
functions only if we actually do tracing.
2016-09-22 Alexei Podtelezhnikov <[email protected]>
[smooth] Reduce divisions in the line renderer.
We don't need some divisions if a line segments stays within a single
row or a single column of pixels.
* src/smooth/ftgrays.c (gray_render_line) [FT_LONG64]: Make divisions
conditional.
2016-09-15 Alexei Podtelezhnikov <[email protected]>
* src/smooth/ftgrays.c (gray_sweep): Remove check for empty table.
2016-09-14 Alexei Podtelezhnikov <[email protected]>
[smooth] Another tiny speed-up.
* src/smooth/ftgrays.c (gray_find_cell): Merge into...
(gray_record_cell): ... this function.
2016-09-11 Alexei Podtelezhnikov <[email protected]>
* src/smooth/ftgrays.c (gray_{find,set}_cell): Remove dubious code.
2016-09-11 Alexei Podtelezhnikov <[email protected]>
[smooth] Fix valgrind warning and reoptimize.
The algorithm calls `gray_set_cell' at the start of each new contour
or when the contours cross the cell boundaries. Double-checking for
that is wasteful.
* src/smooth/ftgrays.c (gray_set_cell): Remove check for a new cell.
(gray_convert_glyph): Remove initialization introduced by 44b172e88.
2016-09-10 Werner Lemberg <[email protected]>
[sfnt] Fix previous commit.
Problems reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40
We now map the strike index right before accessing the physical
data, not earlier.
* src/sfnt/sfobjs.c (sfnt_load_face): Set `face->sbit_strike_map'
after creating the map so that...
* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): ... this function
can be used before and after setting up `sbit_strike_map'.
(tt_face_set_sbit_strike): Revert change.
(tt_sbit_decoder_init, tt_face_load_sbix_image): Map strike index.
* src/truetype/ttdriver.c (tt_size_select): Revert change.
2016-09-09 Werner Lemberg <[email protected]>
[ftfuzzer] Minor improvements.
* src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Ignore
invalid strikes.
Use better values for call to `FT_Set_Char_Size'.
2016-09-09 Werner Lemberg <[email protected]>
[sfnt] Don't provide (completely) broken strike data.
FreeType tries to sanitize strike header data; we now reject
completely broken ones.
* include/freetype/internal/tttypes.h (TT_FaceRec): New
`sbit_strike_map' array pointer.
* src/base/ftobjs.c (FT_Match_Size): Reject matches where either
width or height would be zero.
Add tracing message in case of error.
* src/sfnt/sfobjs.c (sfnt_load_face): Populate `sbit_strike_map',
only using (more or less) valid strike header data for
FT_Face's `available_sizes' array.
(sfnt_done_face): Updated.
* src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use
`sbit_strike_map'.
(tt_face_load_strike_metrics): Improve tracing.
* src/truetype/ttdriver.c (tt_size_select): Use `sbit_strike_map'.
2016-09-08 Werner Lemberg <[email protected]>
* Version 2.7 released.
=======================
Tag sources with `VER-2-7'.
* docs/VERSION.TXT: Add entry for version 2.7.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.5/2.7/, s/265/27/.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 7.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.raw (version_info): Set to 18:6:12.
* CMakeLists.txt (VERSION_MINOR): Set to 7.
(VERSION_PATCH): Set to 0.
* docs/CHANGES: Updated.
2016-09-08 Werner Lemberg <[email protected]>
* src/truetype/ttinterp.c: Include `ttgxvar.h'.
This fixes the `multi' build.
2016-09-08 Werner Lemberg <[email protected]>
[autofit] Another improvement to Armenian support.
Suggested by Hrant H Papazian <[email protected]>.
* src/autofit/afscript.h: Use better suited characters to derive
default stem widths.
2016-09-07 Alexei Podtelezhnikov <[email protected]>
* src/smooth/ftgrays.c (gray_hline): Micro-optimize.
2016-09-06 Alexei Podtelezhnikov <[email protected]>
[smooth] Operate in absolute bitmap coordinates.
Simpler bitmap addressing improves performance by 1.5%.
* src/smooth/ftgrays.c (gray_TWorker): Remove count fields.
(gray_dump_cells, gray_find_cell, gray_set_cell, gray_hline,
gray_sweep, gray_convert_glyph, gray_raster_render): Updated.
2016-09-06 Alexei Podtelezhnikov <[email protected]>
[smooth] Improve contour start (take 2).
* src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly
instead of...
(gray_start_cell): ... this function, which is removed.
(gray_convert_glyph): Make initial y-coordinate invalid.
2016-09-06 Werner Lemberg <[email protected]>
[type1] MM fonts support exactly zero named instances (#48748).
* src/type1/t1load.c (T1_Get_MM_Var): Set `num_namedstyles' to zero.
2016-09-06 Jonathan Kew <[email protected]>
[cff] Fix uninitialized memory.
Problem reported as
https://bugzilla.mozilla.org/show_bug.cgi?id=1270288
* src/cff/cf2interp.c (cf2_interpT2CharString): Initialize `storage'
array to handle a `get' opcode without a previous `put'.
2016-09-05 Alexei Podtelezhnikov <[email protected]>
* src/smooth/ftgrays.c (gray_move_to, gray_start_cell): Revert.
2016-09-05 Alexei Podtelezhnikov <[email protected]>
[smooth] Improve contour start.
* src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly
instead of...
(gray_start_cell): ... this function, which is removed.
2016-09-05 Werner Lemberg <[email protected]>
[cff] Fix memory initialization.
* src/cff/cf2stack.c (cf2_stack_init): Use `FT_NEW'. The `Q'
variants of FreeType's memory allocation macros don't do zeroing.
2016-09-05 Werner Lemberg <[email protected]>
[ftrandom] Minor improvements.
* src/tools/ftrandom/ftrandom.c (_XOPEN_SOURCE): New macro, set to
500.
* src/tools/ftrandom/Makefile (CFLAGS): Split off include
directories to ...
(INCLUDES): ... this new variable.
(LDFLAGS): New variable.
(ftrandom.o, ftrandom): Updated.
2016-09-05 Werner Lemberg <[email protected]>
[autofit] Improve Armenian support.
Thanks to Hrant H Papazian <[email protected]> for help.
* src/autofit/afblue.dat (AF_BLUE_STRING_ARMENIAN_*): Improve
selection of characters.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2016-09-04 Werner Lemberg <[email protected]>
[ftrandom] Improve Makefile.
It now supports both a normal build (`./configure && make') and a
development build (`make devel').
* src/tools/ftrandom/Makefile (VPATH): Set it so that
`libfreetype.a' gets searched in both `objs' (for the development
build) and `objs/.libs' (for a normal build which uses libtool).
(LIBS): Add missing libraries.
(ftrandom.o): New rule.
(ftrandom): Use automatic variables.
2016-09-03 Werner Lemberg <[email protected]>
[truetype] More fixes for handling of GX deltas.
Problems reported by Bob Taylor <[email protected]>.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix rough
sanity test for glyph variation array header size.
Always set stream position before reading packed x and y deltas.
Fix thinko w.r.t. `localpoints' array.
2016-09-03 Werner Lemberg <[email protected]>
[ftrandom] Various fixes.
* src/tools/ftrandom/ftrandom.c (GOOD_FONTS_DIR): Provide better
default.
(error_fraction): Make it of type `double' to work as advertized –
this was completely broken.
Update all related code.
(error_count, fcnt): Make it unsigned to fix compiler warnings.
Update all related code.
(fontlist): Change `len' member to `long' to fix compiler warnings.
(FT_MoveTo, FT_LineTo, FT_ConicTo, FT_CubicTo, abort_test): Tag
unused variables.
(TestFace, FindFonts, copyfont, do_test): Fix compiler warnings.
(ExecuteTest): Ditto.
Call `FT_Done_FreeType'.
(getErrorCnt): Replace `ceil' with an ordinary cast to `unsigned
int'.
(usage): Improve output.
(main): Fix compiler warnings.
* src/tools/ftrandom/README: Updated.
2016-09-03 Werner Lemberg <[email protected]>
[base] Avoid negative bitmap stroke dimensions (#48985).
* src/base/ftobjs.c (FT_Open_Face): Check whether negation was
actually successful. For example, this can fail for value
-32768 if the type is `signed short'. If there are problems,
disable the stroke.
2016-09-03 Werner Lemberg <[email protected]>
[cff] Avoid null pointer passed to FT_MEM_COPY (#48984).
* src/cff/cffload.c (cff_index_get_name): Check `byte_len'.
2016-09-02 Werner Lemberg <[email protected]>
[unix] Enable 64bit support in file system access (#48962).
* builds/unix/configure.raw: Call `AC_SYS_LARGEFILE'.
2016-09-02 Werner Lemberg <[email protected]>
[sfnt] Avoid left shift of negative value (#48980).
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Use unsigned
constant.
2016-09-02 Werner Lemberg <[email protected]>
* src/smooth/ftgrays.c (gray_hline): Fix clang compiler warnings.
2016-09-02 Werner Lemberg <[email protected]>
Some preparations for the next release.
* include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Enable.
* docs/CHANGES: Updated.
2016-09-01 Alexei Podtelezhnikov <[email protected]>
[smooth] Simplify span rendering more.
It turns out that there is significant cost associated with `FT_Span'
creation and calls to `gray_render_span' because it happens so
frequently. This removes these steps from our internal use but leaves
it alone for `FT_RASTER_FLAG_DIRECT" to preserve API. The speed gain
is about 5%.
* src/smooth/ftgrays.c (gray_render_span): Removed. The code is
migrated to...
(gray_hline): ... here.
2016-08-30 Alexei Podtelezhnikov <[email protected]>
[smooth] Streamline pixmap drawing a bit more.
Zero coverage is unlikely (1 out of 256) to warrant checking. This
gives 0.5% speed improvement in rendering simple glyphs.
* src/smooth/ftgrays.c (gray_hline, gray_render_span): Remove checks.
2016-08-29 Alexei Podtelezhnikov <[email protected]>
[smooth] Streamline pixmap drawing.
This gives 2% speed improvement in rendering simple glyphs.
* src/smooth/ftgrays.c (TPixmap): Reduced pixmap descriptor with a
pointer to its bottom-left and pitch to be used in...
(gray_TWorker): ... here.
(gray_render_span): Move pixmap flow check from here...
(gray_raster_render): .. to here.
2016-08-27 Alexei Podtelezhnikov <[email protected]>
[smooth] Reduce stack of band boundaries.
* src/smooth/ftgrays.c (gray_TBand): Removed.
(gray_convert_glyph): Updated to stack band boundaries concisely.
2016-08-26 Werner Lemberg <[email protected]>
* src/cid/cidload.c (cid_face_open): Improve handling of `SDBytes'.
2016-08-26 Werner Lemberg <[email protected]>
[cid] Fix commit from 2016-05-16.
* src/cid/cidparse.c (cid_parser_new): Fix off-by-one errors.
2016-08-26 Werner Lemberg <[email protected]>
[sfnt] Cache offset and size to bitmap data table.
This commit avoids `EBDT' and friends being looked up again and
again while loading a single embedded bitmap.
* include/freetype/internal/tttypes.h (TT_FaceRec)
[TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: New fields `ebdt_start' and
`ebdt_size'.
* src/sfnt/ttsbit.c (tt_sbit_decoder_init): Move table lookup to ...
(tt_face_load_sbit): ... this function; also store the table size
and offset.
2016-08-26 Alexei Podtelezhnikov <[email protected]>
* src/smooth/ftgrays.c (gray_raster_render): Minor tweaks.
2016-08-26 Werner Lemberg <[email protected]>
[type1] Fix heap buffer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36
* src/type1/t1load.c (parse_charstrings): Reject fonts that don't
contain glyph names.
2016-08-25 Werner Lemberg <[email protected]>
[sfnt] Fix previous commit (#48901).
* src/sfnt/ttcmap.c (tt_cmap4_char_map_binary): Thinkos.
2016-08-25 Werner Lemberg <[email protected]>
[sfnt] Speed up handling of invalid format 4 cmaps.
* src/sfnt/ttcmap.c (tt_cmap4_next, tt_cmap4_char_map_binary): Add
tests for `num_glyph' from `tt_cmap4_char_map_linear'.
2016-08-25 Werner Lemberg <[email protected]>
* include/freetype/internal/ftdriver.h: Remove unused typedefs.
2016-08-22 Alexei Podtelezhnikov <[email protected]>
[smooth] Simplify span rendering.
This removes unnecessary complexity of span merging and buffering.
Instead, the spans are rendered as they come, speeding up the
rendering by about 5% as a result.
* src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed.
(gray_TWorker): Remove span buffer and related fields.
(gray_sweep, gray_hline): Updated.
* include/freetype/ftimage.h: Remove documentation note about
`FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone.
2016-08-16 Werner Lemberg <[email protected]>
[truetype] Fix `MPS' instruction.
According to Greg Hitchcock, MPS in DWrite really returns the point
size.
* src/truetype/ttobjs.h (TT_SizeRec): Add `point_size' member.
* src/truetype/ttdriver.c (tt_size_request): Set `point_size'.
* src/truetype/ttinterp.h (TT_ExecContextRec): Add `pointSize'
member.
* src/truetype/ttinterp.c (TT_Load_Context): Updated.
(Ins_MPS): Fix instruction.
2016-08-16 Werner Lemberg <[email protected]>
[lzw] Optimize last commit.
* src/lzw/ftzopen.c (ft_lzwstate_get_code): Move check into
conditional clause.
2016-08-16 Werner Lemberg <[email protected]>
[lzw] Avoid invalid left shift.
Reported as
https://bugzilla.mozilla.org/show_bug.cgi?id=1295366
* src/lzw/ftzopen.c (ft_lzwstate_get_code): Limit `num_bits'.
2016-08-16 Werner Lemberg <[email protected]>
[lzw] Avoid buffer overrun.
Reported as
https://bugzilla.mozilla.org/show_bug.cgi?id=1273283
* src/lzw/ftzopen.c (ft_lzwstate_refill): Ensure `buf_size' doesn't
underflow.
2016-08-16 Werner Lemberg <[email protected]>
[truetype] Fix compiler warning.
* src/truetype/ttgload.c (load_truetype_glyph): Add cast.
2016-08-13 Werner Lemberg <[email protected]>
[winfonts] Avoid zero bitmap width and height.
Reported as
https://bugzilla.mozilla.org/show_bug.cgi?id=1272173
* src/winfonts/winfnt.c (FNT_Face_Init): Check zero pixel height.
(FNT_Load_Glyph): Check for zero pitch.
2016-08-11 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttinterp.c (Pop_Push_Count): Revert changes.
2016-08-11 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttinterp.c (TT_RunIns): Minor and formatting.
2016-08-11 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttinterp.c (Pop_Push_Count): Fix some entries.
2016-08-10 Peter Klotz <[email protected]>
* src/smooth/ftgrays.c (gray_hline): Fix uninitialized access.
2016-08-10 Werner Lemberg <[email protected]>
[sfnt] Use correct type for `italicAngle' field (#48732).
* src/sfnt/ttload.c (tt_face_load_post): Fix types.
2016-08-06 Jon Spencer <[email protected]>
[sfnt] Fix `FT_Get_Advance' for bitmap strikes.
`FT_Get_Advance' returns 0 for bitmap fonts. It first gets the
advance value from the font table and then scales it by the
`font->size->metrics->x_scale' field. But `FT_Select_Size' doesn't
set that value for bitmap fonts and the advance gets scaled to zero.
Taken from
https://github.com/behdad/harfbuzz/issues/252
* src/sfnt/ttsbit.c (tt_face_load_strike_metrics)
<TT_SBIT_TABLE_TYPE_EBLC>: Set scale values.
2016-08-06 Behdad Esfahbod <[email protected]>
[truetype] Fix GX variation handling of composites.
* src/truetype/ttgload.c (load_truetype_glyph)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Check `ARGS_ARE_XY_VALUES' flag.
2016-08-05 Alexei Podtelezhnikov <[email protected]>
[smooth] Minor refactoring.
* src/smooth/ftgrays.c (gray_render_scanline, gray_render_line):
Updated.
2016-07-29 Werner Lemberg <[email protected]>
[sfnt, truetype] Don't abort on invalid `maxComponentDepth'.
Since 2016-05-16 we detect infinite recursion directly.
* src/sfnt/ttload.c (tt_face_load_maxp): Don't adjust
`maxComponentDepth'.
* src/truetype/ttgload.c (load_truetype_glyph): Don't abort if
`maxComponentDepth' is not valid. Instead, simply adjust its value
and emit a tracing message.
2016-07-26 Werner Lemberg <[email protected]>
* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Minor.
No functional change.
2016-07-22 Hin-Tak Leung <[email protected]>
[truetype] Record the end of IDEFs.
To match the logic in FDEF. The value of the end is only used for
bound-checking in `Ins_JMPR', so it may not have been obvious that
it was not recorded. Tested (as part of Font Validator 2.0) all the
fonts on Fedora and did not see any change.
* src/truetype/ttinterp.c (Ins_IDEF): Updated.
2016-07-19 Werner Lemberg <[email protected]>
[truetype] Sanitizer fix, second try.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary
tests and use only one slot more.
2016-07-19 Werner Lemberg <[email protected]>
[truetype] Sanitizer fix.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Increase array
to fix nested loops.
2016-07-18 Werner Lemberg <[email protected]>
[truetype] Make GETDATA work only for GX fonts.
* src/truetype/ttinterp.c (opcode_name): Updated.
(Ins_GETDATA): Only define for `TT_CONFIG_OPTION_GX_VAR_SUPPORT'.
(TT_RunIns): Updated.
2016-07-17 Werner Lemberg <[email protected]>
[truetype] Add support for Apple's
GETDATA[], opcode 0x92
bytecode instruction. It always returns 17, and we have absolutely
no idea what it is good for...
* src/truetype/ttinterp.c (Pop_Push_Count, opcode_name): Updated.
(Ins_GETDATA): New function.
(TT_RunIns): Add it.
2016-07-16 Werner Lemberg <[email protected]>
[truetype] Add bytecode support for GX variation fonts.
This commit implements undocumented (but confirmed) stuff from
Apple's old bytecode engine.
GETVARIATION[], opcode 0x91
This opcode pushes normalized variation coordinates for all axes
onto the stack (in 2.14 format). Coordinate of first axis gets
pushed first.
GETINFO[], selector bit 3
If GX variation support is enabled, bit 10 of the result is set
to 1.
* src/truetype/ttinterp.c: Include FT_MULTIPLE_MASTERS_H.
(opcode_name) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated.
(Ins_GETINFO) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle selector
bit 3, checking support for variation glyph hinting.
(Ins_GETVARIATION) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function
to implement opcode 0x91.
(TT_RunIns) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle opcode 0x91.
2016-07-16 Werner Lemberg <[email protected]>
[truetype] Fix GETINFO bytecode instruction.
* src/truetype/ttinterp.c (Ins_GETINFO): Fix return value for
stretching information.
2016-07-16 Behdad Esfahbod <[email protected]>
[truetype] Make all glyphs in `Zycon' GX font work.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary
tests.
2016-07-16 Werner Lemberg <[email protected]>
[truetype] Fix GX delta tracing.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Trace
relative point movements.
2016-07-16 Behdad Esfahbod <[email protected]>
[truetype] More fixes for GX.
This finally fixes the rendering of the cyclist and the lizard in
the `Zycon' font.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): `first' point
index is always cumulative.
(tt_handle_deltas): Rename to...
(tt_interpolate_deltas): ... This.
Add new parameter for output point array.
Update caller.
(TT_Vary_Apply_Glyph_Deltas): Add `points_out' array; it now holds
the intermediate results of `tt_interpolate_deltas' that are to be
added to `outline->points'.
2016-07-15 Werner Lemberg <[email protected]>
* src/autofit/aflatin.c (af_latin_hints_compute_segments): Thinko.
`max_pos' is always larger than `min_pos' so `FT_ABS' is not needed.
Reported by Alexei.
2016-07-16 Nikolaus Waxweiler <[email protected]>
* src/truetype/ttinterp.c (Ins_MIRP): Fix copy-and-paste error.
Problem reported by Hin-Tak Leung.
2016-07-15 Werner Lemberg <[email protected]>
[autofit] Update and improve segment and edge tracing.
* src/autofit/afhints.c (af_glyph_hints_dump_segments): Trace
`delta' also.
Don't show first point of segment as a replacement for `pos'; this
is (a) misleading, since the difference to `pos' can be almost
arbitrarily large in corner cases, and (b) it is better to have all
segment data in font units instead of a single value given in output
space coordinates.
Improve layout.
(af_glyph_hints_dump_edges): Show px->units and units->px conversion
values for convenience.
Improve layout.
2016-07-15 Werner Lemberg <[email protected]>
[autofit] For edges, reject segments wider than 1px (#41334).
* src/autofit/afhints.h (AF_SegmentRec): New member `delta'.
* src/autofit/aflatin.c (af_latin_hints_compute_segments): Compute
`delta'.
(af_latin_hints_compute_edges): Reject segments with a delta larger
than 0.5px.
2016-07-14 Werner Lemberg <[email protected]>
* include/freetype/freetype.h (FT_IS_NAMED_INSTANCE): New macro.
2016-07-14 Werner Lemberg <[email protected]>
[sfnt] Fix `face_index' value in `FT_Face' for named instances.
* src/sfnt/sfobjs.c (sfnt_init_face): Don't strip off higher 16bits.
2016-07-14 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix tracing.
2016-07-14 Behdad Esfahbod <[email protected]>
[truetype] Fix gxvar delta interpolation.
The coordinates of the base font should be used for interpolation
purposes, NOT the current points (i.e., the result of accumulation
of previous deltas).
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Initialize
`points_org' before looping over all tuples.
----------------------------------------------------------------------------
Copyright 2016-2017 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used, modified,
and distributed under the terms of the FreeType project license,
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