Commit Graph

6345 Commits

Author SHA1 Message Date
Werner Lemberg 578bcf103a [cff] Fix typo.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9409

* src/cff/cffdrivr.c (cff_get_cid_from_glyph_index): Fix boundary
check.
2018-07-30 11:28:04 +02:00
Werner Lemberg 00968d8fd6 * src/pcf/pcfread.c (pcf_get_encodings): Another thinko.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9608
2018-07-29 10:22:59 +02:00
Alexei Podtelezhnikov 0f8aebfd51 * builds/unix/configure.raw: Minor. 2018-07-28 23:21:28 -04:00
Alexei Podtelezhnikov 2c3e895c74 [smooth] Fix Harmony memory management.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9501

* src/smooth/ftgrays.c (ft_smooth_render_generic): Restore buffer
after each rendering in case of failure.
2018-07-28 22:00:59 -04:00
Werner Lemberg 6e44d78cc1 [type1] Avoid segfaults with `FT_Get_PS_Font_Value'.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9610

* src/type1/t1driver.c (t1_ps_get_font_value): Protect against NULL.
2018-07-28 22:23:16 +02:00
Werner Lemberg c9edca8ee9 [truetype] Make `TT_Set_MM_Blend' idempotent (#54388).
* src/truetype/ttgxvar.c (tt_set_mm_blend): Correctly set
`face->doblend' if the current call to the function yields the same
blend coordinates as the previous call.
2018-07-27 10:44:01 +02:00
Werner Lemberg d277bfc985 [psaux, type1]: More tracing improvements.
* src/psaux/psintrp.c (cf2_interpT2CharString): Trace skipped
outline commands.

* src/psaux/t1decode.c (t1_decoder_parse_charstring): Fix
missing case.
(t1_decoder_parse_metrics): Make tracing output more compact.

* src/type1/t1gload.c (T1_Compute_Max_Advance): Be less verbose.
(T1_Get_Advances): Add tracing.
2018-07-27 09:15:43 +02:00
Werner Lemberg 6e6acdcb0e Document FT_Module_Class's `module_interface' field. 2018-07-26 07:22:43 +02:00
Werner Lemberg 8ed5346877 [psaux, type1] Trace PostScript dictionaries and other things.
The tracing of /Encoding, /Subrs, and /Charstrings is rudimentary
right now.

* src/psaux/psobjs.c (ps_parser_load_field,
ps_parser_load_field_table): Add tracing calls.

* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Make tracing
output more compact.

* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances): Add
tracing messages.

* src/type1/t1load.c (parse_blend_axis_types,
parse_blend_design_positions, parse_blend_design_map,
parse_weight_vector, t1_load_keyword, t1_parse_font_matrix,
parse_encoding, parse_subrs, parse_charstrings, T1_Open_Face): Add
tracing calls.

* src/type1/t1objs.c (T1_Face_Init): Add tracing call.

* src/sfnt/sfobjs.c (sfnt_init_face): Make tracing message more
verbose.
2018-07-25 22:07:22 +02:00
Werner Lemberg 580c94d8f7 Fix minor ASAN run-time warnings.
* src/base/ftutil.c (ft_mem_alloc, ft_mem_realloc): Only call
`FT_MEM_ZERO' if we actually have a buffer.
(ft_mem_dup): Only call `ft_memcpy' if we actually have a buffer.
2018-07-25 07:03:07 +02:00
Alexei Podtelezhnikov 4b97ab98a8 [build] Fortify dllexport/dllimport attributes (#53969,#54330).
We no longer use predefined _DLL, which can be defined for static
builds too with /MD. We use DLL_EXPORT and DLL_IMPORT instead,
following libtool convention.

* CMakeLists.txt [WIN32], builds/windows/vc2010/freetype.vcxproj:
Define DLL_EXPORT manually.

* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h, builds/windows/vc2010/index.html,
src/base/ftver.rc: /_DLL/d, s/FT2_DLLIMPORT/DLL_IMPORT/.
2018-07-24 23:01:34 -04:00
Werner Lemberg d8ea52dee5 [type1] Check relationship between number of axes and designs.
For Multiple Masters fonts We don't support intermediate designs;
this implies that

  number_of_designs == 2 ^^ number_of_axes

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9557

* src/type1/t1load.c (T1_Open_Face): Ensure above constraint.
(T1_Get_MM_Var): Remove now redundant test.
2018-07-24 23:03:06 +02:00
Hin-Tak Leung 71e29fe1c9 [truetype] Match ttdebug's naming of instruction mnemonics.
* src/truetype/ttinterp.c: The form used in ttdebug,
"MDRP[G,B,W,?]", etc., is slightly more readable than
"MDRP[00,01,02,03]".
2018-07-24 10:04:23 +02:00
Werner Lemberg ff1c28f6c0 * src/pcf/pcfread.c (pcf_get_encodings): Thinko.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9561
2018-07-24 09:59:23 +02:00
Werner Lemberg b98133a4e9 * src/pcf/pcfread.c (pcf_get_encodings): Check index of defaultChar.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9527
2018-07-22 13:06:20 +02:00
Werner Lemberg 9be385c94d * src/pcf/pcfread.c (pcf_load_font): Fix number of glyphs.
This is an oversight of the module change 2018-07-21.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9524
2018-07-22 12:49:25 +02:00
Werner Lemberg a5acdce100 [cid] Sanitize `BlueShift' and `BlueFuzz'.
This code is taken from the type1 module.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9510

* src/cid/cidload.c (parse_fd_array): Set some private dict default
values.
(cid_face_open): Do the sanitizing.
Fix some tracing messages.
2018-07-22 12:11:52 +02:00
Werner Lemberg 5434faadf4 Fix links.
Reported by Ankit and Nikhil.
2018-07-22 07:34:53 +02:00
Werner Lemberg 9395558533 Minor comment improvement. 2018-07-21 23:46:19 +02:00
Werner Lemberg cba72a0b0f [pcf] Fix handling of the undefined glyph.
This change makes the driver use the `defaultChar' property of PCF
files.

* src/pcf/pcf.h (PCF_FaceRec): Change type of `defaultChar' to
unsigned.

* src/pcf/pcfread.c (pcf_get_encodings): Read `defaultChar' as
unsigned.
Validate `defaultChar'.
If `defaultChar' doesn't point to glyph index zero, swap glyphs with
index zero and index `defaultChar' and adjust the encodings
accordingly.

* src/pcf/pcfdrivr.c (pcf_cmap_char_index, pcf_cmap_char_next,
PCF_Glyph_Load): Undo change from 2002-06-16 which always enforced
the first character in the font to be the default character.
2018-07-21 23:45:32 +02:00
Werner Lemberg a2370f21b5 Improve stream extraction macro documentation. 2018-07-21 07:38:13 +02:00
Armin Hasitzka 154832d466 Move the legacy fuzz target to the `freetype-testing' repository.
It can now be found at

  https://github.com/freetype/freetype2-testing/tree/master/fuzzing/src/legacy

* src/tools/ftfuzzer: Remove this folder and its contents from the
repository.
2018-07-20 19:32:13 +02:00
Werner Lemberg 14032290bf [cff] Avoid left-shift of negative numbers (#54322).
* src/cff/cffgload.c (cff_slot_load): Use multiplication.
2018-07-20 06:44:13 +02:00
Werner Lemberg 8f09eb5ce0 Allow FT_ENCODING_NONE for `FT_Select_Charmap'.
This is a valid encoding tag for BDF, PCF, and Windows FNT, and
there is no reason to disallow it for these formats.

* src/base/ftobjs.c (FT_Select_Charmap): Implement it.
2018-07-17 21:45:24 +02:00
Werner Lemberg 9e69987aaa * src/pcf/pcfread.c (pcf_get_encodings): Trace `defaultChar'. 2018-07-17 19:54:25 +02:00
Armin Hasitzka fda356b742 * include/freetype/internal/ftcalc.h: Add macros for handling
harmless over-/underflowing `FT_Int' values.

* src/sfnt/sfdriver.c (fixed2float): Fix negation of
`(int)(-2147483648)'.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9423
2018-07-16 18:45:23 +02:00
Werner Lemberg 839cb404cf * src/truetype/ttgxvar.c (tt_set_mm_blend): Fix off-by-one error.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9412
2018-07-16 05:47:27 +02:00
Werner Lemberg 9f15370e56 * src/base/ftoutln.c (FT_Outline_Get_Orientation): Init `cbox'.
Taken from patch #9667, written by Steve Langasek
<vorlon@debian.org>.

This fixes a build failure (most probably a bug in gcc) on ppc64el
when building with -O3.
2018-07-12 07:31:26 +02:00
Werner Lemberg b532d7ce70 Fix typo (#54238).
* src/base/ftcolor.c (FT_Palette_Set_Foreground_Color)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: Add return value.
2018-07-05 23:13:35 +02:00
Werner Lemberg 0767d5362f Adjust table size comparisons (#54242).
* src/sfnt/ttcpal.c (tt_face_load_cpal): Implement it.
2018-07-05 23:05:53 +02:00
Werner Lemberg 6ceeb87f5d Fix more 32bit issues (#54208)
* src/cff/cffload.c (cff_blend_build_vector): Convert assertion into
run-time error.

* src/truetype/ttgxvar.c (ft_var_to_normalized): Protect against
numeric overflow.
2018-07-05 22:31:10 +02:00
Werner Lemberg 29f05fd02d Fix 32bit build warnings (#54239).
* src/base/ftbitmap.c (FT_Bitmap_Blend): Add casts to avoid signed
vs. unsigned comparisons.

* srb/sfnt/ttcolr.c (tt_face_get_colr_layer): Ditto.
2018-07-04 11:49:47 +02:00
Jeff Carey d9d300ab6b * src/psnames/psmodule.c (ps_unicodes_init): Fix alloc debugging. 2018-07-02 22:27:57 +02:00
Werner Lemberg 396051daee s/xxx specific foo/xxx-specific foo/. 2018-07-02 15:52:36 +02:00
Werner Lemberg 7edc937fe6 s/palette_types/palette_flags/.
Suggested by Behdad.
2018-07-02 11:50:04 +02:00
Werner Lemberg 4e3b2473d8 Make `FT_Get_Color_Glyph_Layer' return FT_Bool.
* include/freetype/freetype.h, src/base/ftobjs.c
(FT_Get_Color_Glyph_Layer, FT_Render_Glyph_Internal): Updated.

* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func),
src/sfnt/ttcolr.h, src/sfnt/ttcolr.c (tt_face_get_colr_layer):
Updated.
2018-07-02 11:41:44 +02:00
Werner Lemberg f6ccb524af * src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Guard SFNT function.
Reported by Behdad.
2018-07-01 12:31:57 +02:00
Alexei Podtelezhnikov 1fc776b5f1 * src/base/fttrigon.c (FT_Tan): Improve accuracy.
(FT_Vector_Rotate): Simplify.
2018-06-28 21:42:26 -04:00
Alexei Podtelezhnikov 4f11209f5c * src/base/ftobjs.c (FT_Set_Charmap): Robustify. 2018-06-28 21:31:35 -04:00
Werner Lemberg 207ca38fb5 [truetype] Fix memory leak.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Add initializers.
Fix typo in `goto' destination.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9071
2018-06-25 18:50:00 +02:00
Werner Lemberg 589d1f0899 * src/truetype/ttgxvar.c (tt_face_vary_cvt): Add initializers.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9070
2018-06-25 18:38:04 +02:00
Werner Lemberg a632fb547e [truetype] Increase precision while applying VF deltas.
It turned out that we incorrectly round CVT and glyph point deltas
before accumulation, leading to severe positioning errors if there
are many delta values to sum up.

Problem reported by Akiem Helmling <akiem@underware.nl> and analyzed
by Behdad.

* src/truetype/ttgxvar.c (ft_var_readpackeddelta): Return deltas in
16.16 format.
(tt_face_var_cvt): Collect deltas in `cvt_deltas', which is a 16.16
format array, and add the accumulated values to the CVT at the end
of the function.
(TT_Vary_Apply_Glyph_Deltas): Store data in `points_org' and
`points_out' in 16.16 format.
Collect deltas in `point_deltas_x' and `point_deltas_y', which are
16.16 format arrays, and add the accumulated values to the glyph
coordinates at the end of the function.
2018-06-24 15:22:10 +02:00
Werner Lemberg cc3333902b New base function `FT_Matrix_Check' (#54019).
* src/base/ftcalc.c (FT_Matrix_Check): New base function to properly
reject degenerate font matrices.

* include/freetype/internal/ftcalc.h: Updated.

* src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c
(cid_parse_font_matrix), src/type1/t1load.c (t1_parse_font_matrix),
src/type42/t42parse.c (t42_parse_font_matrix): Use
`FT_Matrix_Check'.
2018-06-24 06:26:09 +02:00
Werner Lemberg d7393e22ee Fix typo.
Reported by Behdad.

* src/base/ftcolor.c (FT_Palette_Data_Get)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.
2018-06-23 17:25:58 +02:00
Werner Lemberg 9027233f75 s/FT_PALETTE_USABLE_WITH_/FT_PALETTE_FOR_/.
* include/freetype/ftcolor.h, include/freetype/internal/sfnt.h,
src/sfnt/ttcolr.c: Do it.
2018-06-21 00:21:09 +02:00
Werner Lemberg a6b77ba2b3 [sfnt] Fix CPAL heap buffer overflow.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8968

* src/sfnt/ttcpal.c (tt_face_load_cpal): Guard CPAL version 1
offsets.
2018-06-19 20:09:31 +02:00
Werner Lemberg 7915fd51f1 Doh. Don't use CPAL or COLR data if tables are missing.
Reported by Alexei.

* src/sfnt/ttcolr.c (tt_face_get_colr_layer): Return immediately if
`colr' is NULL.

* src/sfnt/ttcpal.c (tt_face_palette_set): Return immediately, if
`cpal' is NULL.
2018-06-19 07:15:21 +02:00
Werner Lemberg a56e4bf7a2 Oops! 2018-06-18 23:18:07 +02:00
Nikhil Ramakrishnan 779c8c4050 Some more minor doc fixes. 2018-06-18 15:17:13 +05:30
Werner Lemberg 95f7341d81 More minor doc fixes. 2018-06-18 11:10:14 +02:00