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ChangeLog
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2018-11-10 Alexei Podtelezhnikov <[email protected]>
[smooth] Placeholder only for library-enabled LCD filtering.
* src/smooth/ftsmooth.c (ft_smooth_init): Add disabled
`FT_Library_SetLcdFilter' call.
2018-11-09 Young Xiao <[email protected]>
[psaux] Add safety guard (#54985).
* src/psaux/psobjs.c (cff_builder_close_contour): Do it.
2018-11-08 Alexei Podtelezhnikov <[email protected]>
* builds/unix/configure.raw: Require `windows.h' for windres.
2018-11-08 Alexei Podtelezhnikov <[email protected]>
[ftstroke] Fix unpredictable failures (#54986).
* src/base/ftstroke.c (ft_sroke_border_lineto): Fix lineto check.
2018-11-08 Alexei Podtelezhnikov <[email protected]>
[ftstroke] Fix unpredictable failures (#54976).
* src/base/ftstroke.c (ft_sroke_border_close): Set the start tags.
2018-11-07 Ben Wagner <[email protected]>
[truetype] Fix VF check from 2018-09-12 (#54973).
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Use correct
offsets for estimates.
2018-11-06 Werner Lemberg <[email protected]>
[pshinter] Fix numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11242
* src/pshinter/pshrec.c (ps_dimension_add_t1stem): Implement it.
2018-11-06 Werner Lemberg <[email protected]>
[psaux] Fix timeout in old CFF engine.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11260
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
<cff_op_sqrt> [CFF_CONFIG_OPTION_OLD_ENGINE]: Fix potential endless
loop.
2018-11-04 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c: Use enum definitions.
2018-11-03 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Adjust condition.
2018-11-03 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Tracing tweaks.
2018-11-03 Alexei Podtelezhnikov <[email protected]>
Revert due to specs: [truetype] Speed up variation IUP.
2018-11-02 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (ft_var_get_item_delta): Fixed logic.
Reported and tested by Behdad.
2018-11-02 Shailesh Mistry <[email protected]>
[autofit] Prevent SEGV.
See
https://bugs.ghostscript.com/show_bug.cgi?id=697545
for more details on how the bug was found.
* src/autofit/afloader.c (af_loader_load_glyph): Propagate error
code.
2018-10-31 Alexei Podtelezhnikov <[email protected]>
[truetype] Speed up variation IUP.
* src/truetype/ttgxvar.c (tt_delta_interpolate): Separate trivial
snapping to the same position from true interpolation.
2018-10-31 Alexei Podtelezhnikov <[email protected]>
* src/type1/t1load.c (t1_set_mm_blend): Optimized.
2018-10-31 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (ft_var_get_item_delta): Optimized.
2018-10-29 Werner Lemberg <[email protected]>
[base] Fix numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11080
* src/base/ftoutln.c (FT_Outline_Get_Orientation): Use `MUL_LONG'.
2018-10-29 Werner Lemberg <[email protected]>
[cff] Fix numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10988
* src/cff/cffparse.c (cff_parser_run)
[CFF_CONFIG_OPTION_OLD_ENGINE]: Use `NEG_LONG'.
2018-10-27 Alexei Podtelezhnikov <[email protected]>
[sfnt] Make `head' timestamps unsigned.
It's been more than 2^31 seconds since 1904.
* include/freetype/tttables.h (TT_Header): Change field types.
* src/sfnt/ttload.c (tt_face_load_generic_header): Updated.
2018-10-27 Alexei Podtelezhnikov <[email protected]>
Revert: Align FreeType with standard C memory management.
2018-10-27 Werner Lemberg <[email protected]>
[psaux] Fix numeric overflow.
Triggered by
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11157
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_blend>
[CFF_CONFIG_OPTION_OLD_ENGINE]: Fix integer overflow.
2018-10-20 Werner Lemberg <[email protected]>
Avoid endless loop while tracing (#54858).
* src/type1/t1load.c (parse_buildchar): Guard tracing stuff with
FT_DEBUG_LEVEL_TRACE.
2018-10-17 David Demelier <[email protected]>
* CMakeLists.txt: Specify `RUNTIME DESTINATION'.
This is needed for DLL builds.
2018-10-07 Werner Lemberg <[email protected]>
A missing Unicode cmap is not a fatal error.
This is a follow-up to the previous commit.
* src/cff/cffobjs.c (cff_face_init), src/sfnt/sfobjs.c
(sfnt_load_face), src/type1/t1objs.c (T1_Face_Init),
src/type42/t42objs.c (T42_Face_Init): Implement it.
2018-10-07 Werner Lemberg <[email protected]>
Fix handling of FT_CONFIG_OPTION_ADOBE_GLYPH_LIST (#54794).
* src/cff/cffcmap.c (cff_cmap_unicode_init), src/psaux/t1cmap.c
(t1_cmap_unicode_init), src/sfnt/ttcmap.c (tt_cmap_unicode_init):
Check `unicodes_init' field.
2018-10-03 Werner Lemberg <[email protected]>
[ftgrays] Fix typo in stand-alone mode (#54771).
* src/smooth/ftgrays.c (FT_THROW) [STANDALONE_ &&
FT_DEBUG_LEVEL_TRACE]: Fix call to `FT_ERR_CAT'.
2018-10-02 Werner Lemberg <[email protected]>
[psaux] Fix segfault.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10768
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
<cff_op_callothersubr> [CFF_CONFIG_OPTION_OLD_ENGINE]: Check
argument.
2018-10-02 Werner Lemberg <[email protected]>
[psaux] Fix numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10740
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>
[CFF_CONFIG_OPTION_OLD_ENGINE]: Use NEG_INT.
2018-10-02 Werner Lemberg <[email protected]>
[pshinter] Handle numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10550
* src/pshinter/pshglob.c (psh_blues_snap_stem): Mask numeric
overflow.
2018-09-27 Alexei Podtelezhnikov <[email protected]>
Align FreeType with standard C memory management.
* include/freetype/ftsystem.h: Include FT_TYPES_H.
(*FT_Alloc_Func, *FT_Realloc_Func): Use size_t for the size arguments.
* src/raster/ftmisc.h: Ditto.
* builds/amiga/src/base/ftsystem.c, builds/unix/ftsystem.c,
* builds/vms/ftsystem.c, src/base/ftsystem.c (ft_alloc, ft_realloc):
Use size_t for the size arguments.
* src/base/ftdbgmem.c (ft_mem_debug_alloc, ft_mem_debug_realloc): Use
FT_Offset, aka size_t, for the size arguments.
2018-09-25 Werner Lemberg <[email protected]>
Fix handling of `FT_Bool'.
Before this commit we had code like
(FT_Bool)( globals->glyph_styles[gindex] & 0x8000)
Since `FT_Bool' is defined to be an `unsigned char', the code
evaluated to something like
(unsigned char)( 0x8532 & 0x8000)
which in turn expanded to
(unsigned char)( 0x8000)
and finally yielded 0x00 – i.e., false – not as expected.
Problem reported and analyzed by Tony Smith <[email protected]>.
* include/freetype/fttypes.h (FT_BOOL): Add a comparison against
zero so that we always have a Boolean expression.
*/*: Replace castings to `FT_Bool' with calls to `FT_BOOL' where
possible.
2018-09-23 Alexei Podtelezhnikov <[email protected]>
[bdf] Speed up charmap access.
This makes FT_Get_Char_Index and FT_Get_Next_Char 4-5 times faster.
* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Help binary search
with continuous prediction.
2018-09-22 Alexei Podtelezhnikov <[email protected]>
* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Another tweak.
This one should be clearer. When the rounded monochrome bbox collapses
we add a pixel that covers most if not all original cbox.
2018-09-21 Alexei Podtelezhnikov <[email protected]>
* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Further tweak.
2018-09-21 Ben Wagner <[email protected]>
Improve auto-hinter handling of bitmap fonts (#54681).
For bitmap fonts, `FT_Load_Glyph' should either return an error or
not set the format to `FT_GLYPH_FORMAT_OUTLINE'. However, in this
case `FT_Load_Glyph' calls into the auto-hinter which calls back
into `FT_Load_Glyph' with `FT_LOAD_NO_SCALE' in the flags, which
marks the glyph as `FT_GLYPH_FORMAT_OUTLINE' with an empty path
(even though it doesn't have any path). It appears that the
auto-hinter should not be called when the face doesn't have
outlines. The current test for using the auto-hinter in
`FT_Load_Glyph' checks whether the driver supports scalable
outlines, but not if the face supports scalable outlines.
* src/base/ftobjs.c (FT_Load_Glyph): Directly check whether we have
scalable outlines.
2018-09-21 Werner Lemberg <[email protected]>
[raster] Fix disappearing vertical lines (#54589).
* src/raster/ftraster.c (Vertical_Sweep_Span): Handle special case
where both left and right outline exactly pass pixel centers.
2018-09-20 Alexei Podtelezhnikov <[email protected]>
* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Tiny rounding tweak.
This adds pixels in case a contour goes through the center
and they need to be turned on in the b/w rasterizer.
2018-09-20 Alexei Podtelezhnikov <[email protected]>
[pcf] Replace charmap implementation.
PCF comes with charmap lookup table, aka PCF encodings. Using it
directly makes FT_Get_Char_Index and FT_Get_Next_Char 4-5 times
faster than the original BDF-like binary searches.
* src/pcf/pcf.h (PCF_EncodingRec): Removed.
(PCF_FaceRec): Remove `nencodings' and `encodings'.
* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Replaced.
* src/pcf/pcfread.c (pcf_get_encodings): Store data differently.
2018-09-20 Werner Lemberg <[email protected]>
[base] Remove unused function `FT_GlyphLoader_CopyPoints'.
* include/freetype/internal/ftgloadr.h, src/base/ftgloadr.c
(FT_GlyphLoader_CopyPoints): Do it.
2018-09-19 Alexei Podtelezhnikov <[email protected]>
[pcf] Prepare to replace charmap implementation.
* src/pcf/pcf.h (PCF_FaceRec): Updated to include...
(PCF_EncRec): ... this new structure to store charmap geometry.
* src/pcf/pcfread.c (pcf_get_encodings): Store charmap geometry.
2018-09-18 Alexei Podtelezhnikov <[email protected]>
Remove unused fields.
* src/pcf.h (PCF_FaceRec): Remove `charmap' and `charmap_handle'.
* src/bdfdrvr.h (BDF_FaceRec): Ditto.
* src/winfonts/winfnt.h (FNT_FaceRec): Ditto.
2018-09-17 Werner Lemberg <[email protected]>
[pshinter] Handle numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10396
* src/pshinter/pshglob.c: Include FT_INTERNAL_CALC_H.
(psh_blues_snap_stem): Mask numeric overflow.
2018-09-13 Werner Lemberg <[email protected]>
[truetype] Some fixes for VF checks.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10317
* src/truetype/ttgxvar.c (ft_var_load_gvar): Properly exit memory
frame if we have invalid glyph variation data offsets.
(tt_face_vary_cvt): Protect against missing `tuplecoords' array.
Fix typo.
2018-09-13 Werner Lemberg <[email protected]>
* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Fix last commit.
2018-09-13 Werner Lemberg <[email protected]>
* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Check `result'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10316
2018-09-12 John Tytgat <[email protected]>
[sfnt] Better PS name handling (#54629).
* src/sfnt/sfdriver (IS_WIN, IS_APPLE): Omit language ID checks.
(get_win_string, get_apple_string): Return NULL when the PostScript
font name characters is not according to specification.
(get_win_string): Make trace output work if the high byte if
non-zero.
(sfnt_get_var_ps_name, sfnt_get_ps_name): Previously we preferred
Win PS name (when there is also an Apple PS name); change this into
a fallback to Apple PS name in case the Win PS name is invalid.
2018-09-12 Werner Lemberg <[email protected]>
[truetype] Improve VF check.
Triggered by
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10255
* src/truetype/ttgxvar.c (ft_var_load_gvar): Use better limit check
for `tupleCount'.
2018-09-12 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (ft_var_load_gvar): Check `glyphoffsets'.
2018-09-10 Armin Hasitzka <[email protected]>
* src/pshinter/pshrec.c (t2_hints_stems): Mask numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10215
2018-09-09 Ben Wagner <[email protected]>
* builds/freetype.mk (refdoc-venv): Ensure python version (#54631).
2018-09-07 Werner Lemberg <[email protected]>
[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
deallocation of the second frame.
2018-09-05 Werner Lemberg <[email protected]>
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 Nikhil Ramakrishnan <[email protected]>
Add documentation guidelines file.
* docs/DOCGUIDE: New file.
2018-09-04 Werner Lemberg <[email protected]>
* devel/ftoption.h: Synchronize with master `ftoption.h'.
2018-09-03 Nikhil Ramakrishnan <[email protected]>
[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 Werner Lemberg <[email protected]>
*/*: s/PSNames/psnames/.
Only tracing messages are affected.
2018-09-03 Werner Lemberg <[email protected]>
[sfnt] Fix heap buffer overflow in CPAL handling.
* src/sfnt/ttcpal.c (tt_face_palette_set): Fix boundary test.
(tt_face_load_cpal): Updated.
2018-09-01 Werner Lemberg <[email protected]>
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.
2018-08-30 Alexei Podtelezhnikov <[email protected]>
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Check glyph format.
2018-08-31 Armin Hasitzka <[email protected]>
[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 Werner Lemberg <[email protected]>
* src/base/ftdebug.c (FT_Throw): Restore missing `FT_UNUSED' calls.
2018-08-31 Werner Lemberg <[email protected]>
* src/base/ftdebug.c (FT_Throw): Reduce chattiness.
2018-08-31 Werner Lemberg <[email protected]>
* src/autofit/afhints.c (af_glyph_hints_reload): Add initialization.
2018-08-30 Alexei Podtelezhnikov <[email protected]>
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 Alexei Podtelezhnikov <[email protected]>
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Correct mono.
2018-08-30 Armin Hasitzka <[email protected]>
[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 Armin Hasitzka <[email protected]>
[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 Werner Lemberg <[email protected]>
[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 Alexei Podtelezhnikov <[email protected]>
[base] Overflow-resistant bitmap presetting.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Implement it.
2018-08-29 Armin Hasitzka <[email protected]>
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 Werner Lemberg <[email protected]>
[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.
2018-08-26 Werner Lemberg <[email protected]>
* src/truetype/ttobjs.c (tt_size_read_bytecode): Trace CVT values.
2018-08-26 Nikhil Ramakrishnan <[email protected]>
* 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 Werner Lemberg <[email protected]>
* 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 Werner Lemberg <[email protected]>
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 Werner Lemberg <[email protected]>
[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 Werner Lemberg <[email protected]>
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.
2018-08-25 Nikhil Ramakrishnan <[email protected]>
Convert documentation markup to Markdown.
It is the result of a GSoC 2018 project; this separate ChangeLog
commit covers the last four commits
ae5d1a4cec37557f31aec270332cfe886a62f9a0
53c69ce04faed3dcc68ca0f54cb8d703d8babf69
195728d5ba38f34fb2c2c20807c01656f2f59b66
c962db28ea59225f0105c03d907d4a9b71765687
* docs/reference/markdown/images/favico.ico,
docs/reference/markdown/javascripts/extra.js,
docs/reference/markdown/stylesheets/extra.css: New files.
* docs/reference/.gitignore, docs/reference/README: Updated.
* src/tools/docmaker/*: Removed. It has been replaced with
`docwriter', a python package available at
https://pypi.org/project/docwriter/
* Jamfile: Updated.
* builds/ansi/ansi-def.mk, builds/beos/beos-def.mk,
builds/dos/dos-def.mk, builds/os2/os2-def.mk (BIN),
builds/unix/unixddef.mk, builds/windows/win32-def.mk: New variable.
* builds/unix/configure.raw: Check for `python' and `pip'.
If not present, warn that `make refdoc' will fail.
* builds/unix/unix-def.in (PYTHON, PIP, BIN): New variables.
* builds/freetype.mk (PYTHON, PIP, VENV_NAME, VENV_DIR, ENV_PYTHON,
ENV_PIP): New variables.
(refdoc): Updated.
(refdoc-venv): New target.
(.PHONY): Updated.
2018-08-23 Werner Lemberg <[email protected]>
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
2018-08-22 Werner Lemberg <[email protected]>
[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.
2018-08-21 Werner Lemberg <[email protected]>
* 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
2018-08-18 Werner Lemberg <[email protected]>
[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 Werner Lemberg <[email protected]>
[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.
2018-08-16 Young Xiao <[email protected]>
* builds/mac/ftmac.c (parse_fond): Fix buffer overrun.
Reported as bug #54515, duplicate of #43540.
2018-08-16 Werner Lemberg <[email protected]>
* builds/*/ftsystem.c (FT_COMPONENT): Updated also.
2018-08-15 Alexei Podtelezhnikov <[email protected]>
[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 Werner Lemberg <[email protected]>
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.
2018-08-14 Werner Lemberg <[email protected]>
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 Alexei Podtelezhnikov <[email protected]>
[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 Werner Lemberg <[email protected]>
[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 Werner Lemberg <[email protected]>
[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 Alexei Podtelezhnikov <[email protected]>
[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.
2018-08-14 Werner Lemberg <[email protected]>
[cff] Fix segv in old engine.
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.
2018-08-13 Alexei Podtelezhnikov <[email protected]>
[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 Werner Lemberg <[email protected]>
* src/type42/t42parse.c (t42_parse_sfnts): One more format check.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9832
2018-08-11 Werner Lemberg <[email protected]>
* src/base/ftcalc.c (FT_Matrix_Check): Fix integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9811
2018-08-10 Alexei Podtelezhnikov <[email protected]>
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_compound): Follow specs.
2018-08-10 Ben Wagner <[email protected]>
* src/sfnt/sfobjs.c (sfnt_done_face): Fix memory leak (#54435).
2018-08-10 Werner Lemberg <[email protected]>
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Improve tracing.
2018-08-10 Werner Lemberg <[email protected]>
Fix clang warnings.
* src/base/ftdebug.c (ft_trace_level_enabled,
ft_trace_level_disabled): Add `static' keyword.
2018-08-09 Alexei Podtelezhnikov <[email protected]>
[raster, smooth] Reinstate bitmap size limits.
This again moves outline and bitmap size checks one level up.
* src/base/ftoutln.c (FT_Outline_Render): Explicitly reject enormous
outlines.
* src/raster/ftrend1.c (ft_raster1_render): Reject enormous bitmaps
and, therefore, outlines that require them.
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.
* src/raster/ftraster.c (ft_black_render): Remove outline size checks.
* src/smooth/ftgrays.c (gray_raster_render): Ditto.
[STANDALONE]: Remove `FT_Outline_Get_CBox' copy.
2018-08-08 Alexei Podtelezhnikov <[email protected]>
[pcf] Revert massive unsigning.
2018-08-08 Werner Lemberg <[email protected]>
[smooth] Improve tracing.
* src/smooth/ftgrays.c (gray_convert_glyph_inner): Only use tracing
if called the first time.
(gray_convert_glyph): Updated.
2018-08-08 Werner Lemberg <[email protected]>
Add internal functions `FT_Trace_Disable' and `FT_Trace_Enable'.
It sometimes makes sense to suppress tracing informations, for
example, if it outputs identical messages again and again.
* include/freetype/internal/ftdebug.h: Make `ft_trace_levels' a
pointer.
(FT_Trace_Disable, FT_Trace_Enable): New declarations.
* src/base/ftdebug.c (ft_trace_levels): Rename to...
(ft_trace_levels_enabled): ... this.
(ft_trace_levels_disabled): New array.
(ft_trace_levels): New pointer.
(FT_Trace_Disable, FT_Trace_Enable): Implement.
(ft_debug_init): Updated.
2018-08-08 Werner Lemberg <[email protected]>
Debugging improvements.
* src/base/ftobjs.c (pixel_modes): Move this array to top level
from ...
(FT_Load_Glyph): ... here.
(FT_Render_Glyph_Internal): Use `width' x `height' in trace message.
Use `pixel_modes'.
2018-08-08 Alexei Podtelezhnikov <[email protected]>
[pcf] Massive unsigning (part 2).
Treat all size related properties as unsigned values.
* src/pcf/pcf.h (PCF_ParsePropertyRec): Use unsigned `name' and
`value'.
* src/pcf/pcfread.c (pcf_get_properties, pcf_load_font): Updated
parsing code and handling of AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE,
RESOLUTION_X and RESOLUTION_Y.
2018-08-08 Alexei Podtelezhnikov <[email protected]>
[pcf] Massive unsigning (part 1).
Unofficial specifications hesitate to use unsigned 32-bit integers.
Negative values caused a lot of trouble in the past and it is safer
and easier to treat some properties as unsigned.
* src/pcf/pcf.h (PCF_AccelRec): Use unsigned values for `fontAscent',
`fontDescent', and `maxOverlap'.
* src/pcf/pcfread.c (pcf_load_font, pcf_get_accel): Updated.
* src/pcf/pcfdrivr.c (PCF_Glyph_Load, PCF_Size_Select,
PCF_Size_Request): Updated.
2018-08-07 Alexei Podtelezhnikov <[email protected]>
* src/pcf/pcfread.c (pcf_get_bitmaps): Unsign `offsets' and
`bitmapSizes'.
2018-08-06 Werner Lemberg <[email protected]>
* devel/ftoption.h: Synchronize with main `ftoption.h'.
2018-08-06 Alexei Podtelezhnikov <[email protected]>
[pcf] Use unsigned types.