Commit Graph

191 Commits

Author SHA1 Message Date
Werner Lemberg 2ecf89b481 */*: s/FT_MEM_ZERO/FT_ZERO/ where appropriate. 2016-09-28 19:06:21 +02:00
Werner Lemberg ebbb8b2e19 [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 16:28:57 +02:00
Werner Lemberg a660e3de42 [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.
2016-08-26 00:23:27 +02:00
Werner Lemberg d583561e1d Minor clang++ fixes.
* src/base/ftobjs.c (FT_Add_Module), src/psaux/psobjs.c
(ps_parser_load_field), src/type1/t1load.c (parse_subrs): Add
initializer.

* src/cache/ftccache.h (FTC_CACHE_TRYLOOP_END): Avoid implicit
conversion from NULL to boolean.
2016-05-21 11:20:42 +02:00
Werner Lemberg 3295039107 Whitespace. 2016-02-15 12:54:40 +01:00
Werner Lemberg fc11af1ea2 Various minor clang fixes.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths),
src/autofit/aflatin.c (af_latin_metrics_init_widths): Initialize
`ch'.

* src/base/ftcalc.c (FT_MulFix) [FT_LONG64]: Add cast.

* src/base/ftdbgmem.c (ft_mem_table_destroy): Add cast.

* src/base/fthash.c (hash_num_lookup): Add cast.

* src/base/fttrigon.c (ft_trig_downscale) [FT_LONG64]: Fix cast.

* src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Comment out
redundant code.

* src/type1/t1driver.c (t1_get_ps_font_value) <PS_DICT_SUBR>: Add
cast.

* src/type1/t1load.c (parse_subrs): Fix type of `count'.
2016-01-19 19:15:54 +01:00
Werner Lemberg 9adeab6452 Update copyright year. 2016-01-13 11:54:10 +01:00
Werner Lemberg 9c1a2b0439 * src/type1/t1load.c (parse_subrs): Fix memory leak (#46744). 2015-12-22 12:05:46 +01:00
Werner Lemberg 7ce6c43c3e [base] Make hash interface symmetric.
Use `num' and `str' infixes everywhere.

* src/base/fthash.c (ft_hash_init): Renamed to...
(hash_init): ... This.
(ft_hash_str_init, ft_hash_num_init): New functions.
(ft_hash_free): Renamed to...
(ft_hash_str_free): ... This.

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

* src/bdf/bdflib.c, src/type1/t1load.c, src/type1/t1objs.c: Updated.
2015-12-22 05:39:58 +01:00
Werner Lemberg 60d13bd432 [type1] Avoid shift of negative numbers (#46732).
* src/type1/t1load.c (parse_subrs): Do it.
2015-12-21 17:27:17 +01:00
Werner Lemberg bd4b8976a3 [type1, psaux] Handle large values of num_subrs correctly (#46692).
We now use a hash to map from subr indices to array elements holding
the subroutines, if necessary.

* include/freetype/internal/t1types.h: Include FT_INTERNAL_HASH_H.
(T1_FontRec): Add `subrs_hash' field.

* include/freetype/internal/psaux.h: Include FT_INTERNAL_HASH_H.
(T1_DecoderRec): Add `subrs_hash' field.

* src/type1/t1load.h (T1_LoaderRec): Add `subrs_hash' field.

* src/type1/t1driver.c: Include FT_INTERNAL_HASH_H.
(t1_ps_get_font_value) [PS_DICT_SUBR]: Look up hash if necessary.

* src/type1/t1load.c: Include FT_INTERNAL_HASH_H.
(parse_subrs): Use hash for subr indices that exceed the allocated
number of subr slots.
(t1_init_loader): Remove unnecessary code.
(t1_done_loader, T1_Open_Face): Updated.

* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances,
T1_Load_Glyph): Updated.

* src/type1/t1objs.c (T1_Face_Done): Updated.

* src/psaux/t1decode.c: Include FT_INTERNAL_HASH_H.
(t1_decoder_parse_charstrings) [op_callsubr]: Look up hash if
necessary.

* src/cid/cidgload.c (cid_load_glyph): Updated.
2015-12-20 19:36:04 +01:00
Werner Lemberg 8539915d18 [type1] Correctly handle missing MM axis names (#46202).
* src/type1/t1load.c (T1_Get_MM_Var): Implement it.
2015-10-13 20:43:19 +02:00
Werner Lemberg 121122416d [type1] Protect against invalid number of subroutines (#46150).
* src/type1/t1load.c (parse_subrs): Check number of
`Subrs' dictionary entries against size of data stream.
2015-10-08 08:55:15 +02:00
Werner Lemberg 2439c515a7 [type1] Protect against invalid number of glyphs (#46029).
* src/type1/t1load.c (parse_charstrings): Check number of
`CharStrings' dictionary entries against size of data stream.
2015-09-25 16:54:28 +02:00
Werner Lemberg 19cb1127d4 [type1, type42] Fix memory leaks (#45966).
* src/type1/t1load.c (parse_blend_axis_types): Handle multiple axis
names.
(parse_blend_design_map): Allow only a single design map.
(parse_encoding): Handle multiple encoding vectors.

* src/type42/t42parse.c (t42_parse_encoding): Handle multiple
encoding vectors.
2015-09-15 08:52:36 +02:00
Werner Lemberg 581c7e2a51 [type1, type42] Check encoding array size (#45961).
* src/type1/t1load.c (parse_encoding), src/type42/t42parse.c
(t42_parse_encoding): Do it.
2015-09-15 06:49:06 +02:00
Alexei Podtelezhnikov 4afc0a54ed Comment typos. 2015-08-12 23:51:02 -04:00
Alexei Podtelezhnikov a37da21a49 [type1,cid,type42] Minor improvements.
* src/type1/t1load.c (t1_parse_font_matrix): Scale units per EM only
when necessary. Refresh comments.
* src/cid/cidload.c (cid_parse_font_matrix): Ditto.
* src/type42/t42parse.c (t42_parse_font_matrix): Refresh comments.
2015-08-10 23:05:02 -04:00
Alexei Podtelezhnikov eabc8d72e0 [psaux,psnames,type1,type42] NULL. 2015-04-12 23:16:48 -04:00
Werner Lemberg 10e2bb8b3d [type1, truetype] Make the MM API more flexible w.r.t. `num_coords'.
This commit allows `num_coords' to be larger or smaller than the
number of available axes while selecting a design instance, either
ignoring excess data or using defaults if data is missing.

* src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design):
Implement it.

* src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design,
T1_Set_Var_Design): Ditto.
2015-03-29 13:32:47 +02:00
Werner Lemberg dd5d6d7a80 [type1] Minor.
* src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design): Use
FT_THROW.
(T1_Set_Var_Design): Use T1_MAX_MM_AXIS and FT_THROW.
2015-03-29 10:04:22 +02:00
Werner Lemberg 851e815127 Various compiler warning fixes for `make multi'.
* src/autofit/afcjk.c (af_cjk_hints_compute_blue_edges),
src/autofit/aflatin.c (af_latin_hint_compute_blue_edges,
af_latin_hint_edges), src/autofit/aflatin2.c
(af_latin2_hints_compute_blue_edges, af_latin2_hint_edges): Declare
as `static'.

* src/cache/ftccmap.c (FTC_CMAP_QUERY_HASH, FTC_CMAP_NODE_HASH):
Removed.  Unused.
* src/cache/ftcimage.c: Include FT_INTERNAL_OBJECTS_H.
* src/cache/ftcmanag.c (FTC_LRU_GET_MANAGER): Removed.  Unused.

* src/cff/cf2intrp.c: Include `cf2intrp.h'.
* src/cff/cffdrivr.c (PAIR_TAG): Removed.  Unused.

* src/gzip/ftgzip.c (NO_DUMMY_DECL): Removed.  Unused.

* src/psaux/afmparse.c (afm_parser_read_int): Declare as `static'.

* src/pshinter/pshalgo.c (STRONGER, PSH_ZONE_MIN, PSH_ZONE_MAX):
Removed.  Unused.

* src/raster/ftraster.c (Render_Glyph): Declare as `static'.

* src/sfnt/ttpost.c (load_format_20): Fix signedness warning.

* src/truetype/ttdriver.c (PAIR_TAG): Removed.  Unused.
* src/truetype/ttsubpix.c (is_member_of_family_class,
is_member_of_style_class): Declare as `static'.

* src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Declare
as `static'.
* src/type1/t1load.c (mm_axis_unmap, mm_weights_unmap): Declare as
`static'.
(T1_FIELD_COUNT): Removed.  Unused.
* src/type1/t1parse.h (T1_Done_Table): Removed.  Unused.

* src/type42/t42parse.c (T1_Done_Table): Removed.  Unused.
2015-03-01 19:27:09 +01:00
Werner Lemberg 3b5f332c5b [type1] Fix signedness issues.
* include/internal/psaux.h, include/internal/t1types.h,
src/psaux/psobjs.c, src/psaux/psobjs.h, src/psaux/t1decode.c,
src/type1/t1gload.c, src/type1/t1load.c, src/type1/t1parse.c: Apply.
2015-02-18 11:45:22 +01:00
Werner Lemberg 6bd7d28fc7 Don't use `FT_PtrDist' for lengths.
Use FT_UInt instead.

* include/internal/psaux.h (PS_Table_FuncsRec, PS_TableRec,
T1_DecoderRec): Do it.

* include/internal/t1types.h (T1_FontRec): Ditto.

* src/cid/cidload.c (cid_parse_dict): Updated.
* src/pfr/pfrload.c (pfr_extra_item_load_font_id): Ditto.
* src/psaux/psobjs.c (ps_table_add), src/psaux/psobjs.h: Ditto.
* src/type1/t1load.c (parse_blend_axis_types, parse_encoding,
parse_chharstrings, parse_dict): Ditto.
* src/type42/t42parse.c (t42_parse_encoding, t42_parse_charstrings,
t42_parse_dict): Ditto.
2015-02-18 09:22:06 +01:00
Werner Lemberg f57fc59e01 Run `src/tools/update-copyright'. 2015-01-17 20:41:43 +01:00
Werner Lemberg b24e8ba28a [Savannah bug #43682] Add/remove `void' casts to some functions.
We use a cast to indicate that we intentionally ignore a function's
return value.  However, this doesn't apply to API functions where
errors can only happen for trivially invalid input.

* src/base/ftstroke.c (FT_Glyph_Stroke, FT_Glyph_StrokeBorder),
src/base/ftsynth.c (FT_GlyphSlot_Embolden), src/cff/cffgload.c
(cff_slot_load), src/pfr/pfrdrivr.c (pfr_get_kerning),
src/type1/t1load.c (parse_encoding), src/type42/t42parse.c
(t42_parse_encoding): Do it.
2014-11-25 08:30:49 +01:00
Werner Lemberg 73be9f9ab6 [type1, type42] Another fix for Savannah bug #43655.
* src/type1/t1load.c (parse_charstrings), src/type42/t42parse.c
(t42_parse_charstrings): Add another boundary testing.
2014-11-24 07:30:05 +01:00
Werner Lemberg dd89710f0f [type1, type42] Fix Savannah bug #43655.
* src/type1/t1load.c (parse_charstrings), src/type42/t42parse.c
(t42_parse_charstrings): Fix boundary testing.
2014-11-21 22:19:28 +01:00
Werner Lemberg 7ac76b50da Fix several clang static analyzer dead store warnings.
* src/autofit/afhints.c (af_glyph_hints_reload,
af_glyph_hints_align_weak_points): Remove unnecessary assignments.

* src/bdf/bdflib.c (bdf_font_load): Ditto.

* src/pshinter/pshalgo.c (psh_glyph_compute_extrema,
psh_glyph_interpolate_other_points): Ditto.

* src/type1/t1load.c (T1_Set_MM_Blend): Ditto.
2014-03-04 04:29:17 +01:00
Simon Bünzli df14e6c0b9 Fix Savannah bug #41590.
* src/type1/t1load.c (parse_encoding): Protect against invalid
number.
2014-02-19 09:31:23 +01:00
Werner Lemberg 8b281f83e8 Fix Savannah bug #41309.
* src/type1/t1load.c (t1_parse_font_matrix): Properly handle result
of `T1_ToFixedArray'.

* src/cid/cidload.c (cid_parse_font_matrix): Synchronize with
`t1_parse_font_matrix'.

* src/type42/t42parse.c (t42_parse_font_matrix): Synchronize with
`t1_parse_font_matrix'.
(t42_parse_encoding): Synchronize with `t1_parse_encoding'.

* src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_BBOX>,
<T1_FIELD_TYPE_MMOX>: Properly handle result of `ps_tofixedarray'.
2014-01-23 08:14:53 +01:00
Werner Lemberg e8ed2d621e Another round of cppcheck nitpicks.
The call was (from the top-level of the FreeType tree):

  cppcheck --force \
           --enable=all \
           -I /usr/include \
           -I /usr/local/include \
           -I /usr/lib/gcc/i586-suse-linux/4.7/include \
           -I include \
           -I include/freetype \
           -I include/freetype/config \
           -I include/freetype/internal \
           -DFT2_BUILD_LIBRARY \
           . &> cppcheck.log

using cppcheck git commit f7e93f99.

Note that cppcheck still can't handle `#include FOO' (with `FOO' a
macro).

*/* Improve variable scopes.
*/* Remove redundant initializations which get overwritten.

* src/gxvalid/*: Comment out redundant code or guard it with
FT_DEBUG_LEVEL_TRACE.
2013-08-01 12:20:20 +02:00
Werner Lemberg c06889eb2c More compiler warning fixes.
*/*: Use cast to `FT_Bool' (or `Bool') where appropriate.
2013-06-12 10:58:06 +02:00
Werner Lemberg 45392b77a8 Fix compiler warnings.
* include/freetype/internal/ftmemory.h: Decorate memory allocation
macros with `FT_Long' where appropriate.
Remove duplicate of FT_MEM_QRENEW_ARRAY definition.

* src/base/ftbitmap.c (ft_gray_for_premultiplied_srgb_bgra): Use
cast.

* src/base/ftobjs.c: Add warning disabling pragma for MSVC while
including `md5.c'.

* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdESC>: Add
cast.

* src/sfnt/ttsbit.c (tt_sbit_decoder_load_compound): Fix casts.
(tt_sbit_decoder_load_bitmap): Beautification.

* src/smooth/ftsmooth.c (ft_smooth_render_generic): Initialize
variables (earlier).

* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Pacify compiler.

* src/truetype/ttgxvar.c (TT_Get_MM_Var): Use unsigned constants
where appropriate.

* src/type1/t1load.c (T1_Get_MM_Var): Ditto.
2013-06-05 13:43:20 +02:00
Werner Lemberg 89f5064765 */*: Use FT_ERR_EQ, FT_ERR_NEQ, and FT_ERR where appropriate.
FT_Err_XXX and friends are no longer directly used in the source
code.
2013-03-14 17:50:49 +01:00
Werner Lemberg e3c9301581 */*: Use FT_Err_Ok only.
This is a purely mechanical conversion.
2013-03-14 11:21:17 +01:00
Werner Lemberg 059bc335ce */*: Use `FT_THROW'.
This is essentially a mechanical conversion, adding inclusion of
`FT_INTERNAL_DEBUG_H' where necessary, and providing the macros for
stand-alone compiling modes of the rasterizer modules.

To convert the remaining occurrences of FT_Err_XXX and friends it is
necessary to rewrite the code.  Note, however, that it doesn't harm
if some cases are not handled since FT_THROW is a no-op.
2013-03-14 10:27:35 +01:00
Werner Lemberg d6bc524bdc Always use module related error codes.
* src/cff/cffobjs.c (cff_face_init), src/type1/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Use
`FT_ERROR_BASE'.

* src/type1/t1load.c (parse_encoding): Use
T1_Err_Unknown_File_Format.
2013-03-11 09:50:53 +01:00
Werner Lemberg f44f3f0e43 Formatting, minor internal documentation improvement. 2012-12-23 18:30:34 +01:00
Werner Lemberg a9f6f85e77 Various compiler warning fixes.
* include/freetype/internal/ftserv.h (FT_SERVICE_UNAVAILABLE): Use
`logical not' operator instead of negation.  The idea is that `~'
returns exactly the data type enforced by the cast to a pointer (be
it 32bit or 64bit or whatever), while a negative integer has not
this flexibility.
* src/cache/ftccmap.c (FTC_CMAP_UNKNOWN): Ditto.
* src/truetype/ttgxvar.c (ALL_POINTS, TT_Get_MM_Var): Ditto.
* src/type/t1load.c (T1_Get_MM_Var): Ditto.
(parse_blend_axis_types): Use cast.
* src/bdf/bdflib.c (_bdf_readstream): Use cast.
2012-12-17 09:08:09 +01:00
Alexei Podtelezhnikov 4ae9cbb025 [truetype, type1] Revise the use of FT_MulDiv.
* src/truetype/ttgxvar.c: Updated.
* src/truetype/ttobjs.c: Updated.
* src/type1/t1load.c: Updated.
2012-12-01 23:36:02 -05:00
Alexei Podtelezhnikov 79180ad049 [cid, type1, type42] Clean up units_per_EM calculations.
* src/cid/cidload.c (cid_parse_font_matrix): Updated.
* src/type1/t1load.c (t1_parse_font_matrix): Updated.
* src/type42/t42parse.c (t42_parse_font_matrix): Updated.
2012-11-27 21:36:20 -05:00
Werner Lemberg 5cdeb3cd60 Fix Savannah bug #37000.
* src/type1/t1load.c (parse_encoding): Fix order of checks.
2012-07-31 20:17:13 +02:00
Werner Lemberg 01b508f247 Fix Savannah bug #36832.
* src/type1/t1load.c (parse_charstrings): Reject negative number of
glyphs.
2012-07-18 10:38:54 +02:00
Werner Lemberg a8c243514c Fix Savannah bug #36829.
* src/type1/t1load.c (parse_encoding): Check cursor position after
call to T1_Skip_PS_Token.
2012-07-18 10:38:37 +02:00
Werner Lemberg 8dc17bb47b [type1] Fix Savannah bug #36386.
* src/type1/t1load.c (t1_load_keyword): Ignore keyword if context is
not valid.
2012-05-07 11:24:48 +02:00
Werner Lemberg b43e0f4413 [type1] Fix Savannah bug #35847.
* src/type1/t1load.c (parse_subrs): Fix the loop exit condition;
we want to exit when we have run out of data.
2012-03-17 07:42:43 +01:00
Werner Lemberg 9a55cb7a71 Fix Savannah bug #35833.
Based on the patch given in the bug report.

* src/type1/t1load.c (IS_INCREMENTAL): New macro.
(read_binary_data): Add parameter `incremental'.
Update all callers using `IS_INCREMENTAL'.
2012-03-14 14:40:03 +01:00
Werner Lemberg 58cbc465d2 [type1] Fix Savannah bug #35606.
* src/type1/t1load.c (parse_subrs): Add proper guards for `strncmp'.

* src/psaux/psobjs.c (ps_parser_skip_PS_token): Emit error message
only if cur < limit.
2012-02-26 05:26:56 +01:00
Werner Lemberg 6b5b6f39e7 Prepare source code for amalgamation (6/6).
* src/cff/cffdrivr.c: s/Load_Glyph/cff_glyph_load/.

* src/cid/cidload.c: s/parse_font_matrix/cid_parse_font_matrix/.
s/t1_init_loader/cid_init_loader/.
s/t1_done_loader/cid_done_loader/.

* src/pxaux/t1cmap.c: s/t1_get_glyph_name/psaux_get_glyph_name/.

* src/truetype/ttdriver.c: s/Load_Glyph/tt_glyph_load/.

* src/type1/t1load.c: s/parse_font_matrix/t1_parse_font_matrix/.
2012-02-24 12:26:25 +01:00