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Author SHA1 Message Date
Werner Lemberg
348d39c68a Comment. 2017-01-05 12:29:55 +01:00
Werner Lemberg
563ae78022 Update copyright year. 2017-01-04 20:16:34 +01:00
Werner Lemberg
a7c2f44b45 * src/pcf/pcfdrivr.c (PCF_Face_Init): Trace compression format. 2017-01-04 13:12:03 +01:00
Werner Lemberg
c9d477242c [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 10:00:49 +01:00
Werner Lemberg
025226ae14 [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.
 2017-01-04 07:45:44 +01:00
Werner Lemberg
8982405f0c [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 09:46:19 +01:00
Werner Lemberg
624b680289 [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 09:42:41 +01:00
Werner Lemberg
69414e7afd * src/cff/cffparse.c (cff_parse_num): Simplify. 2017-01-03 06:53:13 +01:00
Werner Lemberg
248eaa4f60 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): 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: Inlude `pstables.h' twice to get both
declaration and definition.

* src/truetype/ttgxvar.c (FT_fdot14ToFixed, FT_intToFixed): Fix
casting.
 2017-01-03 00:27:07 +01:00
Werner Lemberg
bdec162d92 [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 20:51:55 +01:00
Werner Lemberg
63765a8f2a [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.
 2017-01-01 10:43:41 +01:00
Werner Lemberg
24be60b5f1 */*: Use hex numbers for errors in tracing messages. 2017-01-01 08:20:38 +01:00
Werner Lemberg
e9a154e700 [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.
 2016-12-31 21:41:08 +01:00
Werner Lemberg
069083cccd * 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 21:16:46 +01:00
Werner Lemberg
8fb9d22a6b [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 19:51:37 +01:00
Werner Lemberg
c9de4bf6ba Typo. 2016-12-30 10:07:23 +01:00
Werner Lemberg
6b21d1281e [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 repitition) out of the value set [0,N].
(LLVMFuzzerTestOneInput): Use it to test only up to 10 bitmap
strikes.
 2016-12-30 10:00:54 +01:00
Werner Lemberg
7591bf11d1 [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 21:39:06 +01:00
Werner Lemberg
91fc3bd7c9 * 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 21:34:46 +01:00
Werner Lemberg
180185109b [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 21:30:06 +01:00
Werner Lemberg
84b0d9927b */*: Use `0.5f' for tracing 16.16 numbers. 2016-12-29 10:38:51 +01:00
Werner Lemberg
346b141762 [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.
 2016-12-29 06:03:40 +01:00
Werner Lemberg
6fb549ddab [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 22:23:33 +01:00
Werner Lemberg
c4a1ef3c94 [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 21:22:45 +01:00
Werner Lemberg
c4cd34a9e0 [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.
 2016-12-28 08:33:35 +01:00
Werner Lemberg
48fd5bb2b6 Documentation updates. 
* docs/CHANGES: Add missing information.

* docs/formats.txt: Rewritten and updated.
 2016-12-27 10:20:23 +01:00
Werner Lemberg
0a943b6362 Formatting. 2016-12-27 07:50:22 +01:00
Werner Lemberg
e5e3556fa2 [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.
 2016-12-27 06:49:37 +01:00
Werner Lemberg
f80c4473b6 Replace ++foo' and --foo' with foo++' and foo--', resp. 2016-12-26 23:57:45 +01:00
Werner Lemberg
4441f7b246 Replace foo == NULL' and foo != NULL' with !foo' and foo', resp. 
Other minor formatting.
 2016-12-26 17:08:17 +01:00
Werner Lemberg
37c72f66a5 Minor formatting. 2016-12-25 22:55:25 +01:00
Werner Lemberg
a300c1c3af * src/truetype/ttpload.c (tt_face_load_hdmx): Ignore `version'. 
Problem reported by 張俊芝 <418092625@qq.com>.
 2016-12-24 09:27:15 +01:00
Werner Lemberg
d1db57c284 * 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 <418092625@qq.com>.
 2016-12-24 09:05:16 +01:00
Werner Lemberg
fde0b78cce * 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 <418092625@qq.com>.
 2016-12-24 08:17:19 +01:00
Werner Lemberg
1fecdfe346 * src/sfnt/sfobjs.c (sfnt_init_face): Fix tracing. 2016-12-24 07:50:45 +01:00
Werner Lemberg
8d37efbc79 Add missing ChangeLog entry for commit d44daf9e. 2016-12-22 20:48:28 +01:00
Werner Lemberg
18bd176a65 * CMakeLists.txt: Make it work with cmake 2.8.11.2 (#49909). 2016-12-22 12:24:23 +01:00
Werner Lemberg
06d61b487a 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 10:43:46 +01:00
Werner Lemberg
7f7333990c * 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 10:12:17 +01:00
Werner Lemberg
b44e6c2035 [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 08:30:15 +01:00
Werner Lemberg
ada8297175 [ftfuzzer] Always use Adobe CFF engine. 
* src/tools/ftfuzzer/ftfuzzer.cc (FT_Global::FT_Global): Implement
it.
 2016-12-22 08:25:42 +01:00
Werner Lemberg
7209110345 * 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 23:46:29 +01:00
Werner Lemberg
d44daf9e9b * 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 23:03:48 +01:00
Werner Lemberg
e6a429e2c7 [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 20:27:48 +01:00
Werner Lemberg
64a91137f1 [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 19:30:33 +01:00
Werner Lemberg
57a6733dcf [base] Improve sanity check for Mac resources (#49888). 
* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Abort if `rlen' is not
positive.
 2016-12-21 06:52:23 +01:00
Werner Lemberg
ded4bdb5d0 [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 23:26:38 +01:00
Werner Lemberg
b55730320c ftobjs.c: Formatting. 2016-12-20 23:22:06 +01:00
Werner Lemberg
d5fe8da774 Spelling. 2016-12-20 22:03:40 +01:00
Werner Lemberg
d678b37e8a Another minor ChangeLog addition. 2016-12-20 12:45:31 +01:00