Commit Graph

124 Commits

Author SHA1 Message Date
suzuki toshiya
a115142057 truetype: Check invalid function number in IDEF instruction. 2009-08-01 00:32:18 +09:00
suzuki toshiya
d1c23082b6 truetype: Check invalid function number in FDEF instruction. 2009-08-01 00:32:17 +09:00
suzuki toshiya
6dc27526a9 truetype: Cast the numerical operands to 32-bit for LP64 systems. 2009-08-01 00:32:15 +09:00
suzuki toshiya
3b56c4d390 truetype: Cast the project vector to 32-bit for LP64 system. 2009-08-01 00:32:15 +09:00
Werner Lemberg
c6788a389d Fix some potential out-of-memory crashes.
* src/base/ftobjs.c (ft_glyphslot_done): Check `slot->internal'.
* src/base/ftstream.c (FT_Stream_ReleaseFrame): Check `stream'.
* src/truetype/ttinterp.c (TT_New_Context): Avoid double-free of
`exec' in case of failure.
2009-06-07 13:09:21 +02:00
Werner Lemberg
1e5e7aa073 Fix SCANCTRL handling in TTFs.
Problem reported by Alexey Kryukov <anagnost@yandex.ru>.

* src/truetype/ttinterp.c (Ins_SCANCTRL): Fix threshold handling.
2009-01-25 16:27:04 +00:00
Werner Lemberg
1a5d561dce * src/autofit/afcjk.c, src/base/ftoutln.c, src/base/ftrfork.c,
src/bdf/bdfdrivr.c, src/gxvalid/gxvmorx.c, src/otvalid/otvmath.c,
src/pcf/pcfdrivr.c, src/psnames/pstables.h, src/smooth/ftgrays.c,
src/tools/glnames.py, src/truetype/ttinterp.c, src/type1/t1load.c,
src/type42/t42objs.c, src/winfonts/winfnt.c: Fix compiler warnings
(Atari PureC).
2008-11-29 22:50:24 +00:00
Werner Lemberg
105721a5a6 * src/truetype/ttinterp.c (tt_default_graphics_state): The default
value for `scan_type' is zero, as confirmed by Greg Hitchcock from
Microsoft.  Problem reported by Michal Nowakowski
<miszka@limes.com.pl>.
2008-11-15 10:35:51 +00:00
Werner Lemberg
ce8853af81 * src/truetype/ttinterp. (Ins_SCANTYPE): Don't check rendering mode.
* src/raster/ftraster.c (Render_Glyph, Render_Gray_Glyph,
Draw_Sweep): No-dropout mode is value 2, not value 0.
(Draw_Sweep): Really skip dropout handling for no-dropout mode.
2008-06-24 11:19:03 +00:00
Werner Lemberg
5df5dbb722 Enable access to the various dropout rules of the B&W rasterizer.
Pass dropout rules from the TT bytecode interpreter to the
rasterizer; temporarily this is enabled only if
`USE_SCAN_CONVERSION_RULES' is defined.

* include/freetype/ftimage.h (FT_OUTLINE_SMART_DROPOUTS,
FT_OUTLINE_EXCLUDE_STUBS): New flags for for FT_Outline.

* src/raster/ftraster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop,
Horizontal_Gray_Sweep_Drop): Use same mode numbers as given in the
OpenType specification.
Fix mode 4 computation.
(Render_Glyph, Render_Gray_Glyph): Handle new outline flags.

* src/truetype/ttgload.c (TT_Load_Glyph)
[USE_SCAN_CONVERSION_RULES]: Convert scan conversion mode to
FT_OUTLINE_XXX flags.

* src/truetype/ttinterp.c (Ins_SCANCTRL): Enable ppem check.
2008-06-22 13:40:08 +00:00
Werner Lemberg
7cb9ec0f1c * src/type1/t1parse.h (T1_ParserRec): Make `base_len' and
`private_len' unsigned.

* src/type1/t1parse.c (read_pfb_tag): Make `asize' unsigned and read
it as such.
(T1_New_Parser, T1_Get_Private_Dict): Make `size' unsigned.


* src/base/ftstream.c (FT_Stream_Skip): Reject negative values.


* src/type1/t1load.c (parse_blend_design_positions): Check `n_axis'
for sane value.
Fix typo.


* src/psaux/psobjs.c (ps_table_add): Check `idx' correctly.


* src/truetype/ttinterp (Ins_SHC): Use BOUNDS() to check
`last_point'.


* src/sfnt/ttload.c (tt_face_load_max_profile): Limit
`maxTwilightPoints'.
2008-06-09 20:49:29 +00:00
Werner Lemberg
d77e72295e * src/truetype/ttinterp.c (Ins_IP): Handle case `org_dist == 0'
correctly.  This fixes glyphs `t' and `h' of Arial Narrow at 12ppem.
2008-06-05 22:07:19 +00:00
Werner Lemberg
2b0b4221ab Cosmetic code changes. 2008-05-28 22:17:28 +00:00
Werner Lemberg
c94fa6699c * src/truetype/ttinterp.c (Ins_MD): The MD instruction also uses
original, unscaled input values.  Confirmed by Greg Hitchcock from
Microsoft.
2008-05-27 23:24:07 +00:00
Werner Lemberg
28464c48a1 * src/truetype/ttinterp.c (Ins_IUP): Check number of points. Fix
from Savannah bug #22356.
2008-02-18 20:34:42 +00:00
David Turner
74cc0e9ee4 * src/truetype/ttinterp.c: add missing variable initialization,
gets rid of Valgrind fixes.

	* src/autofit/aflatin.c: get rid of an infinite loop in the case
	of degenerate fonts.
2007-06-30 22:54:12 +00:00
Werner Lemberg
e12ed563d6 * src/tools/ftrandom.c (font_size): New global variable.
(TestFace): Use it.
(main): Handle new option `--size' to set `font_size'.
(Usage): Updated.

Formatting.
2007-06-17 05:31:23 +00:00
David Turner
815911ae2a * src/truetype/ttgload.c (TT_Load_Simple_Glyph): check the well-formedness
of the contours array when loading a glyph

	* src/truetype/ttinterp.c (Ins_IP): check argument ranges to reject
	bogus operations properly
2007-06-16 17:07:20 +00:00
Werner Lemberg
c793d90fca * src/truetype/ttinterp.c (Null_Vector, NULL_Vector): Removed,
unused.
2007-06-01 20:51:11 +00:00
Werner Lemberg
94be20ea82 * src/truetype/ttinterp.c (Ins_IP), src/autofit/aflatin.c
(af_latin_metrics_scale_dim): Fix compiler warnings.
2007-05-09 20:02:55 +00:00
David Turner
3b242d3619 last (tiny) fix to the bytecode interpreter and code cleanup 2007-03-26 12:03:04 +00:00
Werner Lemberg
c9f6c66f95 formatting 2007-03-21 13:30:14 +00:00
David Turner
64a9ef20d5 another bytecode regression fix. Hopefully, this should be the latest 2007-03-18 07:35:08 +00:00
David Turner
74c34eba39 another bytecode interpreter regression fix 2007-03-18 07:19:31 +00:00
David Turner
89020d9749 fixing TrueType bytecode interpreter regression for HLB_____.TTF, needs more testing with other fonts 2007-03-17 17:48:57 +00:00
Werner Lemberg
a091517a04 * src/truetype/ttinterp.c (Ins_MD): Remove unused variable.
* src/autofit/aflatin.c (af_latin_hints_link_segments): Ditto.
2007-02-16 08:12:50 +00:00
Werner Lemberg
3cd6cc24f2 formatting 2007-02-16 08:10:17 +00:00
David Turner
2c4500e981 improving TrueType bytecode interpreter to better match Windows behaviour
on tricky cases... FIX_BYTECODE is now the default to allow large testing
2007-02-14 15:08:47 +00:00
Werner Lemberg
c6a14086d2 * src/truetype/ttinterp.c (Project_x, Project_y): Remove compiler
warnings.

* src/pcf/pcfread.c (pcf_interpret_style), src/bdf/bdfdrivr.c
(bdf_interpret_style): Ditto.
2007-02-12 22:08:15 +00:00
Werner Lemberg
406d25f379 more formatting and copyright years 2007-02-12 22:01:18 +00:00
David Turner
72a0dd247d some simplifications of the TrueType interpreter projection code
(preliminaries to various interpreter fixes)
2007-02-12 15:24:51 +00:00
Werner Lemberg
6e87ed9f04 Spelling fixes from Alexei. 2007-01-26 22:18:56 +00:00
Werner Lemberg
555258fffe * docs/CHANGES: Document SHZ fix.
* src/truetype/ttinterp.c (Ins_SHZ): SHZ doesn't move phantom
points.
2007-01-21 09:46:37 +00:00
Werner Lemberg
b4142d5126 Whitespace and spelling fixes from Alexei.
Formatting, copyright years.
2007-01-17 12:45:26 +00:00
David Turner
2212272992 * src/autofit/aflatin.c, src/cff/cffdriver.c, src/truetype/ttobjs.c,
src/truetype/ttinterp.c: fixing compiler warnings
2007-01-16 20:06:44 +00:00
Werner Lemberg
8c4120d0a3 Fix various compiler warnings.
* src/truetype/ttdriver.c (tt_size_select), src/cff/cffobjs.h,
src/cff/cffobjs.c (cff_size_request), src/type42/t42objs.h:
s/index/strike_index/.
* src/base/ftobjs.c (FT_Match_Size): s/index/size_index/.

* src/gxvalid/gxvmorx5.c
(gxv_morx_subtable_type5_InsertList_validate): s/index/table_index/.

* src/truetype/ttinterp.c (Compute_Point_Displacement),
src/pcf/pcfread.c (pcf_seek_to_table_type): Avoid possibly
uninitialized variables.
2007-01-15 06:42:40 +00:00
Werner Lemberg
27cf9de104 formatting, copyright years 2007-01-13 07:34:23 +00:00
David Turner
e3654532ea * src/base/ftbitmap.c: fixing memory stomping bug in the
bitmap embolderner when the pitch of the source bitmap is
        *much* larger than its width

        * src/truetype/ttinterp.c: fixing aliasing-related compilation
        warning
2007-01-13 00:19:18 +00:00
Werner Lemberg
2bad8ffbdf cosmetics 2006-11-22 09:37:03 +00:00
Werner Lemberg
82ee38e585 formatting 2006-11-20 09:19:26 +00:00
David Turner
7bab6ae3e9 * src/truetype/ttinterp.c: undefined the FIX_BYTECODE macro,
since the interpreter "enhancements" are still too buggy for
      general use
2006-11-13 11:25:06 +00:00
David Turner
6aa260ce61 support for "automatic unpatented hinting" added
we still need to determine the list of "trick" CJK fonts
that are going to toggle the bytecode interpreter instead
of the auto-hinter
2006-08-25 22:45:13 +00:00
Werner Lemberg
1234299620 formatting 2006-08-19 11:18:09 +00:00
David Turner
33f5f24957 * include/freetype/internal/ftgloadr.h,
include/freetype/internal/tttypes.h, src/base/ftgloadr.c,
    src/base/ftobjs.c, src/truetype/ttgload.c, src/truetype/ttinterp.c,
    src/truetype/ttobjs.c: improvements to native TrueType hinting,
    this is a first try, controlled by the FIX_BYTECODE macro in
    src/truetype/ttinterp.c
2006-08-16 16:50:55 +00:00
Werner Lemberg
a2da05c2c5 Fix two hinting bugs as reported in
http://lists.nongnu.org/archive/html/freetype-devel/2006-06/msg00057.html.

* include/freetype/internal/tttypes.h (TT_GlyphZoneRec): Add
`first_point' member.

* src/truetype/ttgload.c (tt_prepare_zone): Initialize
`first_point'.
(TT_Process_Composite_Glyph): Always untouch points.

* src/truetype/ttinterp.c (Ins_SHC): Fix computation of
`first_point' and `last_point' in case of composite glyphs.
(Ins_IUP): Fix computation of `end_point'.
2006-06-25 06:27:27 +00:00
Werner Lemberg
8e6f8c4d79 Formatting, copyright years, documentation improvements. 2006-02-17 08:07:09 +00:00
Wu, Chia-I (吳佳一)
0d565fdc1d * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove
unused `max_points' and `max_contours'.

* src/cid/cidobjs.c (cid_face_init), src/type1/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Update.

* include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused
`max_components'.

* src/truetype/ttinterp.h (TT_ExecContextRec): Remove unused
`loadSize' and `loadStack'.

* src/truetype/ttinterp.c (TT_Done_Context, TT_Load_Context),
src/sfnt/ttload.c (tt_face_load_maxp): Update.

* src/cff/cffobjs.h (cff_size_select), src/sfnt/sfdriver.c
(sfnt_interface), src/truetype/ttdriver.c (tt_size_request): Fix
compiler errors/warnings when TT_CONFIG_OPTION_EMBEDDED_BITMAPS is not
defined.

* src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_get_metrics): Fix
possible segment faults for the non-FT_OPTIMIZE_MEMORY'ed versions.
(finally!)

For most OpenType tables, `tt_face_load_xxxx' simply loads the table
and `face->root' is set later in `sfnt_load_face'.  Here, we try to
make this work for _all_ tables.

* src/sfnt/ttsbit.c, src/sfnt/ttsbit0.c, src/sfnt/ttload.c,
src/sfnt/ttmtx.c: all `tt_face_load_xxxx' should load the table and
then exit.  Error handling or setting face->root is done later in
`sfnt_load_face'.
Pretty trace messages.

* src/sfnt/sfobjs.c (sfnt_load_face): Work harder.
Mac bitmap-only fonts are not scalable.
Check that `face->header.Units_Per_EM' is not zero.
(LOAD_, LOADM_): Pretty trace messages.

* src/sfnt/ttsbit0.c (tt_face_load_strike_metrics): Read metrics from
`eblc'.

* src/sfnt/ttcmap.c (tt_face_build_cmaps), src/sfnt/ttpost.c
(load_format_20, load_format_25, tt_face_get_ps_name): Use
face->max_profile.numGlyphs, instead of face->root.num_glyphs.
2006-02-15 07:44:31 +00:00
Wu, Chia-I (吳佳一)
ce34d122ba * src/truetype/ttinterp.c (Update_Max): Set current size of buffer
correctly (so that memory debug system won't panic).
2005-12-17 13:12:49 +00:00
Werner Lemberg
674ba91f12 formatting 2005-11-16 18:09:27 +00:00
David Turner
f7cc181425 * src/base/fttrigon.c (ft_trig_prenorm): fixed a bug that created
invalid computations, resulting in very weird bugs in TrueType
	bytecode hinted fonts

	* src/truetype/ttinterp.c: redefined FT_UNUSED_EXEC to not perform
	a structure copy each time. Wooot. !
2005-11-15 17:30:56 +00:00