Commit Graph

4625 Commits

Author SHA1 Message Date
Ben Wagner 0805c4a488 * builds/freetype.mk (refdoc-venv): Ensure python version (#54631). 2018-09-09 09:25:58 +02:00
Werner Lemberg 7bf2028250 Typo. 2018-09-07 06:43:19 +02:00
Werner Lemberg 1c04eed76f [truetype] Fix assertion failure.
Triggered by

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10212

* src/truetype/ttgload.c (load_truetype_glyph): Reintroduce
`opened_frame' (removed in a change from 2018-08-26) to handle
dealloation of the second frame.
2018-09-07 06:40:55 +02:00
Werner Lemberg f8af8fba78 Synchronize `ftdebug.c' files.
* builds/amiga/src/base/ftdebug.c, builds/wince/ftdebug.c,
builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c'.
2018-09-05 12:16:56 +02:00
Nikhil Ramakrishnan 77aa02660e Add documentation guidelines file.
* docs/DOCGUIDE: New file.
2018-09-05 11:07:20 +05:30
Werner Lemberg 48f93e648e * devel/ftoption.h: Synchronize with master `ftoption.h'. 2018-09-04 21:19:26 +02:00
Nikhil Ramakrishnan 7da5589c75 [docwriter] Don't break code snippets accross lines.
Reported as

  http://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00124.html

* docs/reference/markdown/stylesheets/extra.css (.md-typeset code):
Add rule `white-space'.
2018-09-03 16:45:28 +05:30
Werner Lemberg 76a52465c1 */*: s/PSNames/psnames/.
Only tracing messages are affected.
2018-09-03 09:08:47 +02:00
Werner Lemberg 475f6d25cb [sfnt] Fix heap buffer overflow in CPAL handling.
* src/sfnt/ttcpal.c (tt_face_palette_set): Fix boundary test.
(tt_face_load_cpal): Updated.
2018-09-03 09:00:58 +02:00
Werner Lemberg 9be656bb0c Remove `FT_Outline_{New,Done}_Internal'.
These public API functions(!) were always undocumented and have
escaped all clean-up efforts until now.

* include/freetype/ftoutln.h (FT_Outline_New_Internal,
FT_Outline_Done_Internal): Removed.

* src/base/ftoutln.h (FT_Outline_New_Internal,
FT_Outline_Done_Internal): Merge into...
(FT_Outline_New, FT_Outline_Done): ... these functions.

* docs/README: Updated.
2018-09-01 11:04:58 +02:00
Alexei Podtelezhnikov 809d5125af * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Check glyph format. 2018-08-31 22:49:19 -04:00
Armin Hasitzka 4b49a8079f [errors] Refine the macro logic surrounding `FT_Error_String'.
* include/freetype/fterrors.h (FT_INCLUDE_ERR_PROTOS,
FT_ERR_PROTOS_DEFINED): Undefine `FT_INCLUDE_ERR_PROTOS' after
checking it and introduce a new macro that takes proper care of
multiple-inclusion protection.
2018-08-31 20:26:46 +01:00
Werner Lemberg 9a323e4762 * src/base/ftdebug.c (FT_Throw): Restore missing `FT_UNUSED' calls. 2018-08-31 20:09:21 +02:00
Werner Lemberg aff04e91f6 * src/base/ftdebug.c (FT_Throw): Reduce chattiness. 2018-08-31 14:57:36 +02:00
Werner Lemberg 0d4ca13865 * src/autofit/afhints.c (af_glyph_hints_reload): Add initialization. 2018-08-31 06:53:52 +02:00
Alexei Podtelezhnikov 1dacbd893d Consolidate bitmap presetting and size assessment.
* include/freetype/internal/ftobjs.h (ft_glyphslot_preset_bitmap):
Change return type.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Return the bitmap
size assessment.

* src/raster/ftrend1.c (ft_raster1_render): Use it to refuse the
rendering of enourmous or far-fetched outlines.
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.
2018-08-30 23:28:30 -04:00
Alexei Podtelezhnikov ca980b4cf1 * src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Correct mono. 2018-08-30 21:51:18 -04:00
Armin Hasitzka 35efb103fe [errors] Introduce a macro to control `FT_Error_String'.
* devel/ftoption.h (FT_CONFIG_OPTION_ERROR_STRINGS),
include/freetype/config/ftoption.h (FT_CONFIG_OPTION_ERROR_STRINGS):
New macro.
2018-08-30 14:30:46 +02:00
Armin Hasitzka d20dc3928b [errors] Introduce `FT_Error_String'.
* include/freetype/fterrors.h (FT_Error_String),
src/base/fterrors.c (FT_Error_String): Implement `FT_Error_String'.

* src/base/ftbase.c, src/base/Jamfile (_source),
src/base/rules.mk (BASE_SRC): Add `fterrors.c' to the build logic.

* src/base/ftdebug.c (FT_Throw): Use `FT_Error_String'.
2018-08-30 14:09:04 +02:00
Werner Lemberg c0ccf75012 [autofit] Trace `before' and `after' edges of strong points.
* src/autofit/afhints.h (AF_PointRec) [FT_DEBUG_AUTOFIT]: New arrays
`before' and `after'.

* src/autofit/afhints.c (af_get_strong_edge_index): New auxiliary
function.
(af_glyph_hints_dump_points): Trace `before' and `after' edges.
(af_glyph_hints_align_strong_points) [FT_DEBUG_AUTOFIT]: Set
`before' and `after' information.
2018-08-30 09:56:09 +02:00
Alexei Podtelezhnikov 5d93a3fc8d [base] Overflow-resistant bitmap presetting.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Implement it.
2018-08-30 01:12:22 -04:00
Armin Hasitzka 934a6159ba Fix numeric overflows.
* src/pshint/pshalgo.c (psh_hint_align, psh_hint_align_light,
psh_hint_table_find_strong_points): Fix numeric overflows.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10083
2018-08-29 15:28:21 +02:00
Werner Lemberg 3915a18b8c [cff] Fix handling of `roll' op in old engine.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10080

* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>
[CFF_CONFIG_OPTION_OLD_ENGINE]: Use modulo for loop count, as
documented in the specification.
2018-08-29 06:53:54 +02:00
Werner Lemberg ae3afbc471 * src/truetype/ttobjs.c (tt_size_read_bytecode): Trace CVT values. 2018-08-26 15:40:16 +02:00
Werner Lemberg 2095772144 ChangeLog*: s/\t/ /. 2018-08-26 15:15:56 +02:00
Nikhil Ramakrishnan f87b711746 * configure: Copy assets required by docwriter.
Copy directory `docs/reference/markdown' when FreeType is compiled in a
different directory.

Fixes `make refdoc' if builddir != srcdir.

Reported as

  http://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00083.html
2018-08-26 17:46:25 +05:30
Werner Lemberg 13034e54aa * src/pshint/pshalgo.c (psh_hint_overlap): Fix numeric overflow.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10057
2018-08-26 12:22:51 +02:00
Werner Lemberg 4738dcc4df Minor tracing adjustments.
* src/base/ftstream.c (FT_Stream_EnterFrame, FT_Stream_ExitFrame):
Trace.

* src/truetype/ttgload.c (TT_Access_Glyph_Frame): Remove tracing.
2018-08-26 12:03:33 +02:00
Werner Lemberg 6e339b8d8e [truetype] Avoid nested frames.
Triggered by

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10054

* src/truetype/ttgload.c (load_truetype_glyph): Don't use variable
`opened_frame' to trace whether a frame must be closed at the end of
function: This fails because `TT_Vary_Apply_Glyph_Deltas' (which
gets called for space glyphs) uses a frame by itself.  Instead,
close the frame after loading the header, then use another frame for
the remaining part of the glyph later on.

Also avoid calling `tt_get_metrics' twice under some circumstances.
2018-08-26 12:01:14 +02:00
Werner Lemberg b287c80b6a Various minor clean-ups.
* src/base/ftapi.c: Remove.  Unused.
* src/base/Jamfile (_sources): Updated.

* src/base/ftstream.c (FT_Stream_ReleaseFrame): Remove redundant
code.
2018-08-26 06:39:43 +02:00
Werner Lemberg c98aa9b78a Add missing ChangeLog entry for the last four commits. 2018-08-25 17:02:20 +02:00
Werner Lemberg 77f0814a31 Add macros for handling over-/underflowing `FT_Int64' values.
* include/freetype/internal/ftcalc.h (ADD_INT64, SUB_INT64,
MUL_INT64, DIV_INT64) [FT_LONG64]: New macros.

* src/base/ftcalc.c (ft_corner_orientation) [FT_LONG64]: Use
`SUB_INT64' and `MUL_INT64'.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10028
2018-08-23 17:53:54 +02:00
Werner Lemberg 45524679c6 [truetype] Improve legibility of `glyf' parsing.
* src/truetype/ttgload.c (ON_CURVE_POINT, X_SHORT_VECTOR,
Y_SHORT_VECTOR, REPEAT_FLAG, X_POSITIVE, SAME_X, Y_POSITIVE, SAME_Y,
OVERLAP_SIMPLE): New macros.
(TT_Load_Simple_Glyph): Use new macros to make code more readable.
Remove useless adjustment of `outline->tags' elements.
2018-08-22 10:31:05 +02:00
Werner Lemberg 0a33b44e6e * src/sfnt/ttcpal.c (tt_face_load_cpal): Add missing safety check.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9981
2018-08-21 10:52:14 +02:00
Werner Lemberg 4873eb1d31 Update `CHANGES' file. 2018-08-19 07:27:21 +02:00
Werner Lemberg 4dc0d48f7b [psaux] Avoid slow PS font parsing in case of error.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9955

* src/psaux/psobjs.c (ps_parser_to_bytes): Set `parser->cursor' even
in case of error to avoid potential re-scanning.
2018-08-18 14:39:20 +02:00
Werner Lemberg 2550fc75a5 [cff] Fix heap buffer overflow in old engine.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9967

* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
<cff_op_blend> [CFF_CONFIG_OPTION_OLD_ENGINE]: `num_designs' must be
non-zero.
2018-08-18 13:38:48 +02:00
Young Xiao c94162a220 * builds/mac/ftmac.c (parse_fond): Fix buffer overrun.
Reported as bug #54515, duplicate of #43540.
2018-08-16 08:25:47 -04:00
Werner Lemberg 33cd1eedcf * builds/*/ftsystem.c (FT_COMPONENT): Updated also. 2018-08-16 05:55:18 +02:00
Alexei Podtelezhnikov 923fcbcdd8 [bdf] Don't track duplicate encodings.
There is no harm except some umbiguity in broken fonts with duplicate
encodings.

* src/bdf/bdflib.c (_bdf_parse_glyphs): Remove duplicate tracking.
(_bdf_parse_t): Remove large `have' bitfield.
2018-08-15 22:50:06 -04:00
Werner Lemberg a0dd16fb3d Don't use `trace_' prefix for FT_COMPONENT arguments.
* include/freetype/internal/ftdebug.h (FT_TRACE_COMP,
FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix.
(FT_TRACE): Use `FT_TRACE_COMP'.

*/* (FT_COMPONENT): Updated.
2018-08-15 18:13:17 +02:00
Werner Lemberg 1d7b034cd8 Use formatting string in FT_TRACEX calls for non-simple arguments.
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
<cff_op_hstem, cff_op_hintmask, cff_op_hlineto, cff_op_vhcurveto>:
Do it.

* src/psaux/pshints.c (cf2_hintmap_build): Ditto.

* src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_cmdHSTEM,
cf2_cmdVSTEM, cf2_cmdHLINETO, cf2_cmdRRCURVETO, cf2_cmdCALLSUBR,
cf2_escHSTEM3, cf2_cmdHINTMASK, cf2_cmdHVCURVETO>: Ditto.

* src/truetype/ttinterp.c (TT_RunIns): Ditto.
2018-08-14 15:56:28 +02:00
Alexei Podtelezhnikov e001a17d73 [bdf] Remove unused fields.
* src/bdf/bdf.h (bdf_font_t): Remove `nmod', `umod', and `modified',
which were set but never used.
* src/bdf/bdflib.c (_bdf_parse_{glyphs,properties}, bdf_load_font):
Updated accordingly.
2018-08-14 07:10:57 -04:00
Werner Lemberg 44db1addd8 [cff] Fix another segv in old engine.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9872

* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
[CFF_CONFIG_OPTION_OLD_ENGINE]: Disallow invalid T1 opcodes in
dictionaries.
2018-08-14 10:01:00 +02:00
Werner Lemberg 1937b55734 [cff] Fix missing error handling.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9865

* src/psaux/cffparse.c (cff_parser_run)
[CFF_CONFIG_OPTION_OLD_ENGINE]: Don't ignore return value of
`parse_charstrings_old'.
2018-08-14 07:54:25 +02:00
Alexei Podtelezhnikov ac2ea865f3 [bdf] Remove unused overflow storage.
* src/bdf/bdf.h (bdf_glyphlist_t): Remove this type.
(bdf_font_t): Remove `overflow' field.
* src/bdf/bdflib.c (bdf_free_font): Remove `overflow' freeing.
2018-08-13 21:33:24 -04:00
Werner Lemberg 757bdf1aef [cff] Fix segv.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9864

* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
<cff_op_random> [CFF_CONFIG_OPTION_OLD_ENGINE]: Use top dict's
`random' field directly if parsing dictionaries.
2018-08-14 02:02:26 +02:00
Alexei Podtelezhnikov f5fe6e2f17 [bdf] Use unsigned types.
* src/bdf/bdf.h (bdf_glyph_t): Unsign `encoding'.
(bdf_font_t): Unsign `default_char'.
* src/bdf/bdfdrivr.h (BDF_encoding_el): Unsign `enc'.

* src/bdf/bdflib.c (_bdf_add_property, _bdf_parse_glyphs,
_bdf_parse_start): Updated accordingly.
* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Ditto.
2018-08-13 09:01:53 -04:00
Werner Lemberg 50486df1e6 * src/type42/t42parse.c (t42_parse_sfnts): One more format check.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9832
2018-08-13 08:46:53 +02:00
Werner Lemberg 5b904409fc * src/base/ftcalc.c (FT_Matrix_Check): Fix integer overflow.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9811
2018-08-11 06:41:35 +02:00