Commit Graph

3973 Commits

Author SHA1 Message Date
Werner Lemberg 7eeaf986b5 [truetype] Fix handling of `cvar' table data.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53

* src/truetype/ttgxvar.c (tt_face_vary_cvt): Ignore invalid CVT
indices.
2016-10-14 08:58:17 +02:00
Werner Lemberg 9c54d1246a [psaux] Fix handling of invalid flex subrs.
Problem reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52

* src/psaux/t1decode.c (t1_decoder_parse_charstrings)
<op_callothersubr>: Set `flex_state' after error checking.
2016-10-11 08:57:55 +02:00
Werner Lemberg 922812281c * src/truetype/ttgxvar.c (tt_done_blend): Fix deallocation. 2016-10-11 07:12:12 +02:00
Werner Lemberg 6b35493115 * src/cid/cidload.c (cid_face_open): Properly propagate `error'. 2016-10-08 20:26:59 +02:00
Werner Lemberg d61b042568 [cid] Fix parsing of subr offsets.
Bug introduced 2016-05-16.

* src/cid/cidparse.c (cid_parser_new): Fix off-by-one error.
2016-10-08 19:20:33 +02:00
Werner Lemberg fcc0ee80e1 [sfnt] Disable bitmap strikes if we don't have a bitmap data table.
* src/sfnt/ttsbit.c (tt_face_load_sbit): Check whether we have
a bitmap data table.
2016-10-01 20:12:25 +02:00
Alexei Podtelezhnikov b0aacff474 [smooth] Remove impossibility.
* src/smooth/ftgrays.c (TWorker): Rearrange fields.
(gray_convert_glyph): Remove impossible condition and clean up.
2016-10-01 12:55:33 -04:00
Werner Lemberg 3576487add [pcf] Enrich family name with foundry name and glyph width info.
This is a very old patch from openSuSE (from 2006, submitted to
FreeType in 2011) that I forgot to apply.

  https://build.opensuse.org/package/view_file/openSUSE:Factory/freetype2/freetype2-bitmap-foundry.patch

Prepend the foundry name plus a space to the family name.  There are
many fonts just called `Fixed' which look completely different, and
which have nothing to do with each other.  When selecting `Fixed' in
KDE or Gnome one gets results that appear rather random, the style
changes often if one changes the size and one cannot select some
fonts at all.

We also check whether we have `wide' characters; all put together,
we get family names like `Sony Fixed' or `Misc Fixed Wide'.

* src/pcf/pcfread.c (pcf_load_font): Implement it.

* docs/CHANGES: Document it.
2016-09-30 08:11:52 +02:00
Werner Lemberg 71b617d8b7 [ftfuzzer] Speed up.
* src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Don't
check for embedded bitmaps if we have a non-default instance.
2016-09-29 19:53:39 +02:00
Werner Lemberg 2067c6985a [truetype] Disallow bitmap strokes for non-default instances.
Also speed up access of default instances if GX variations are
active.

* include/freetype/internal/tttypes.h (TT_FaceRec): Add
`is_default_instance' member.

* src/sfnt/sfobjs.c (sfnt_init_face): Initialize
`is_default_instance'.

* src/truetype/ttgload.c (TT_Process_Simple_Glyph,
load_truetype_glyph): Add test for default instance.
(TT_Load_Glyph): Load embedded bitmaps for default instance only.

* src/truetype/ttgxvar.c (TT_Set_MM_Blend): Compute
`is_default_instance'.
2016-09-29 19:49:07 +02:00
Werner Lemberg bf90239ca5 [truetype] Clean up `TT_Face' structure.
* include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused
fields `horz_metrics' and `vert_metrics'.
Update documentation.

* src/sfnt/sfobjs.c (sfnt_done_face): Updated.
2016-09-29 13:04:46 +02:00
Werner Lemberg 45cad2e5e1 More FT_ZERO usage.
* src/gxvalid/gxvcommn.c (gxv_ClassTable_validate):
s/ft_memset/FT_MEM_ZERO/.

* src/psaux/t1decode.c (t1_decoder_parse_charstrings):
s/ft_memset/FT_ARRAY_ZERO/.

* src/raster/ftraster.c (FT_ZERO): Define.
(ft_black_new): Use it.
* src/raster/ftrend1.c (ft_raster1_get_cbox):
s/FT_MEM_ZERO/FT_ZERO/.

* src/smooth/ftgrays.c (FT_ZERO): Define.
(gray_raster_new): Use it.
* src/smooth/ftsmooth.c (ft_smooth_get_cbox):
s/FT_MEM_ZERO/FT_ZERO/.
2016-09-28 19:10:52 +02:00
Werner Lemberg 2ecf89b481 */*: s/FT_MEM_ZERO/FT_ZERO/ where appropriate. 2016-09-28 19:06:21 +02:00
Werner Lemberg a3e2c83234 [truetype] Trace number of executed opcodes.
* src/truetype/ttinterp.c (TT_RunIns): Implement it.
2016-09-27 21:42:02 +02:00
Werner Lemberg e27b8a5598 [truetype] Speed up `TT_Load_Glyph'.
This avoids additional calls to `tt_face_lookup_table' for the
`glyf' table, which can be expensive.

* include/freetype/internal/tttypes.h (TT_LoaderRec): Move
`glyf_offset' field to ...
(TT_FaceRec): ... this structure.
* src/truetype/ttgload.c (load_truetype_glyph): Updated.
(tt_loader_init): Move initialization of `glyf_offset' to ...
* src/truetype/ttpload.c (tt_face_load_loca): .. this function.
2016-09-27 21:21:01 +02:00
Werner Lemberg 0d94592942 [truetype] Introduce dynamic limits for some bytecode opcodes.
This speeds up FreeType's handling of malformed fonts.

* src/truetype/ttinterp.c (TT_RunIns): Set up limits for the number
of twilight points, the total number of negative jumps, and the
total number of loops in LOOPCALL opcodes.  The values are based on
the number of points and entries in the CVT table.
(Ins_JMPR): Test negative jump counter.
(Ins_LOOPCALL): Test loopcall counter.

* src/truetype/ttinterp.h (TT_ExecContext): Updated.

* docs/CHANGES: Updated.
2016-09-27 08:44:31 +02:00
Werner Lemberg a764963f26 [truetype] Sanitize only last entry of `loca' table.
Without this patch, a loca sequence like `0 100000 0 100000 ...',
where value 100000 is larger than the `glyf' table size, makes
FreeType handle the whole `glyf' table as a single glyph again and
again, which is certainly invalid (and can be very slow, too).

* src/truetype/ttpload.c (tt_face_get_location): Implement.
Improve tracing messages.
2016-09-25 16:29:05 +02:00
Werner Lemberg d11e8b6e6d * src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Fix typo. 2016-09-25 15:32:04 +02:00
Werner Lemberg 2f2e73c50c [autofit] Tracing fixes.
* src/autofit/afmodule.c (af_autofitter_load_glyph): Call dumping
functions only if we actually do tracing.
2016-09-24 22:42:58 +02:00
Alexei Podtelezhnikov 53ae7a542d [smooth] Reduce divisions in the line renderer.
We don't need some divisions if a line segments stays within a single
row or a single column of pixels.

* src/smooth/ftgrays.c (gray_render_line) [FT_LONG64]: Make divisions
conditional.
2016-09-22 22:48:15 -04:00
Alexei Podtelezhnikov d5f7533e8e * src/smooth/ftgrays.c (gray_sweep): Remove check for empty table. 2016-09-15 00:13:36 -04:00
Alexei Podtelezhnikov ad47550b80 [smooth] Another tiny speed-up.
* src/smooth/ftgrays.c (gray_find_cell): Merge into...
(gray_record_cell): ... this function.
2016-09-14 23:15:03 -04:00
Alexei Podtelezhnikov c38be52bf8 * src/smooth/ftgrays.c (gray_{find,set}_cell): Remove dubious code. 2016-09-11 22:44:44 -04:00
Alexei Podtelezhnikov 6ca54c6430 [smooth] Fix valgrind warning and reoptimize.
The algorithm calls `gray_set_cell' at the start of each new contour
or when the contours cross the cell boundaries. Double-checking for
that is wasteful.

* src/smooth/ftgrays.c (gray_set_cell): Remove check for a new cell.
(gray_convert_glyph): Remove initialization introduced by 44b172e88.
2016-09-11 16:00:52 -04:00
Werner Lemberg e421a0bffc [sfnt] Fix previous commit.
Problems reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40

We now map the strike index right before accessing the physical
data, not earlier.

* src/sfnt/sfobjs.c (sfnt_load_face): Set `face->sbit_strike_map'
after creating the map so that...

* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): ... this function
can be used before and after setting up `sbit_strike_map'.
(tt_face_set_sbit_strike): Revert change.
(tt_sbit_decoder_init, tt_face_load_sbix_image): Map strike index.

* src/truetype/ttdriver.c (tt_size_select): Revert change.
2016-09-10 08:02:30 +02:00
Werner Lemberg deb261556a [ftfuzzer] Minor improvements.
* src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Ignore
invalid strikes.
Use better values for call to `FT_Set_Char_Size'.
2016-09-09 22:13:33 +02:00
Werner Lemberg d609b7c158 [sfnt] Don't provide (completely) broken strike data.
FreeType tries to sanitize strike header data; we now reject
completely broken ones.

* include/freetype/internal/tttypes.h (TT_FaceRec): New
`sbit_strike_map' array pointer.

* src/base/ftobjs.c (FT_Match_Size): Reject matches where either
width or height would be zero.
Add tracing message in case of error.

* src/sfnt/sfobjs.c (sfnt_load_face): Populate `sbit_strike_map',
only using (more or less) valid strike header data for
FT_Face's `available_sizes' array.
(sfnt_done_face): Updated.

* src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use
`sbit_strike_map'.
(tt_face_load_strike_metrics): Improve tracing.

* src/truetype/ttdriver.c (tt_size_select): Use `sbit_strike_map'.
2016-09-09 22:11:07 +02:00
Werner Lemberg d2d5968aed * Version 2.7 released.
=======================

Tag sources with `VER-2-7'.

* docs/VERSION.TXT: Add entry for version 2.7.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.5/2.7/, s/265/27/.

* include/freetype/freetype.h (FREETYPE_MINOR): Set to 7.
(FREETYPE_PATCH): Set to 0.

* builds/unix/configure.raw (version_info): Set to 18:6:12.
* CMakeLists.txt (VERSION_MINOR): Set to 7.
(VERSION_PATCH): Set to 0.

* docs/CHANGES: Updated.
2016-09-08 09:04:32 +02:00
Werner Lemberg b1e7b68efe * src/truetype/ttinterp.c: Include `ttgxvar.h'.
This fixes the `multi' build.
2016-09-08 08:56:34 +02:00
Werner Lemberg 8160b20195 Split off ChangeLog.26. 2016-09-08 08:42:10 +02:00
Werner Lemberg 9749f269e2 [autofit] Another improvement to Armenian support.
Suggested by Hrant H Papazian <hpapazian@gmail.com>.

* src/autofit/afscript.h: Use better suited characters to derive
default stem widths.
2016-09-08 07:51:03 +02:00
Alexei Podtelezhnikov a0b92bcb47 * src/smooth/ftgrays.c (gray_hline): Microptimize. 2016-09-07 23:19:57 -04:00
Alexei Podtelezhnikov 9d0a3bd848 [smooth] Operate in absolute bitmap coordinates.
Simpler bitmap addressing improves performance by 1.5%.

* src/smooth/ftgrays.c (gray_TWorker): Remove count fields.
(gray_dump_cells, gray_find_cell, gray_set_cell, gray_hline,
gray_sweep, gray_convert_glyph, gray_raster_render): Updated.
2016-09-06 23:59:33 -04:00
Alexei Podtelezhnikov 44b172e883 [smooth] Improve contour start (take 2).
* src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly
instead of...
(gray_start_cell): ... this function, which is removed.
(gray_convert_glyph): Make initial y-coordinate invalid.
2016-09-06 23:24:17 -04:00
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
Jonathan Kew a15133e6ef [cff] Fix uninitialized memory.
Problem reported as

  https://bugzilla.mozilla.org/show_bug.cgi?id=1270288

* src/cff/cf2interp.c (cf2_interpT2CharString): Initialize `storage'
array to handle a `get' opcode without a previous `put'.
2016-09-06 06:33:36 +02:00
Alexei Podtelezhnikov 9773d5f721 * src/smooth/ftgrays.c (gray_move_to, gray_start_cell): Revert. 2016-09-05 23:33:35 -04:00
Alexei Podtelezhnikov 7effc279b0 [smooth] Improve contour start.
* src/smooth/ftgrays.c (gray_move_to): Call `gray_set_cell' directly
instead of...
(gray_start_cell): ... this function, which is removed.
2016-09-05 21:58:56 -04:00
Werner Lemberg 3ebfe3c545 [cff] Fix memory initialization.
* src/cff/cf2stack.c (cf2_stack_init): Use `FT_NEW'.  The `Q'
variants of FreeType's memory allocation macros don't do zeroing.
2016-09-05 10:55:07 +02:00
Werner Lemberg 1c8bb63299 [ftrandom] Minor improvements.
* src/tools/ftrandom/ftrandom.c (_XOPEN_SOURCE): New macro, set to
500.

* src/tools/ftrandom/Makefile (CFLAGS): Split off include
directories to ...
(INCLUDES): ... this new variable.
(LDFLAGS): New variable.
(ftrandom.o, ftrandom): Updated.
2016-09-05 08:13:42 +02:00
Werner Lemberg c9adf1a14d [autofit] Improve Armenian support.
Thanks to Hrant H Papazian <hpapazian@gmail.com> for help.

* src/autofit/afblue.dat (AF_BLUE_STRING_ARMENIAN_*): Improve
selection of characters.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2016-09-05 07:32:37 +02:00
Werner Lemberg 4b28f6ac42 [ftrandom] Improve Makefile.
It now supports both a normal build (`./configure && make') and a
development build (`make devel').

* src/tools/ftrandom/Makefile (VPATH): Set it so that
`libfreetype.a' gets searched in both `objs' (for the development
build) and `objs/.libs' (for a normal build which uses libtool).
(LIBS): Add missing libraries.
(ftrandom.o): New rule.
(ftrandom): Use automatic variables.
2016-09-04 19:05:45 +02:00
Werner Lemberg 4e659d7ead [truetype] More fixes for handling of GX deltas.
Problems reported by Bob Taylor <Bob.Taylor@monotype.com>.

* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix rough
sanity test for glyph variation array header size.
Always set stream position before reading packed x and y deltas.
Fix thinko w.r.t. `localpoints' array.
2016-09-03 18:14:00 +02:00
Werner Lemberg ca8e98d94a [ftrandom] Various fixes.
* src/tools/ftrandom/ftrandom.c (GOOD_FONTS_DIR): Provide better
default.
(error_fraction): Make it of type `double' to work as advertized –
this was completely broken.
Update all related code.
(error_count, fcnt): Make it unsigned to fix compiler warnings.
Update all related code.
(fontlist): Change `len' member to `long' to fix compiler warnings.
(FT_MoveTo, FT_LineTo, FT_ConicTo, FT_CubicTo, abort_test): Tag
unused variables.
(TestFace, FindFonts, copyfont, do_test): Fix compiler warnings.
(ExecuteTest): Ditto.
Call `FT_Done_FreeType'.
(getErrorCnt): Replace `ceil' with an ordinary cast to `unsigned
int'.
(usage): Improve output.
(main): Fix compiler warnings.

* src/tools/ftrandom/README: Updated.
2016-09-03 13:06:16 +02:00
Werner Lemberg b98dfda392 [base] Avoid negative bitmap stroke dimensions (#48985).
* src/base/ftobjs.c (FT_Open_Face): Check whether negation was
actually successful.  For example, this can fail for value
-32768 if the type is `signed short'.  If there are problems,
disable the stroke.
2016-09-03 08:20:31 +02:00
Werner Lemberg f0fa7a67bf [cff] Avoid null pointer passed to FT_MEM_COPY (#48984).
* src/cff/cffload.c (cff_index_get_name): Check `byte_len'.
2016-09-03 06:33:36 +02:00
Werner Lemberg d87bb9160a [unix] Enable 64bit support in file system access (#48962).
* builds/unix/configure.raw: Call `AC_SYS_LARGEFILE'.
2016-09-02 23:56:27 +02:00
Werner Lemberg d8ef726611 [sfnt] Avoid left shift of negative value (#48980).
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Use unsigned
constant.
2016-09-02 23:27:50 +02:00
Werner Lemberg 16583ccde9 * src/smooth/ftgrays.c (gray_hline): Fix clang compiler warnings. 2016-09-02 22:45:14 +02:00
Werner Lemberg 7a13dc008b Some preparations for the next release.
* include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Enable.

* docs/CHANGES: Updated.
2016-09-02 08:24:01 +02:00
Alexei Podtelezhnikov 11d3336af3 [smooth] Simplify span rendering more.
It turns out that there is significant cost associated with `FT_Span'
creation and calls to `gray_render_span' because it happerns so
frequently. This removes these steps from our internal use but leaves
it alone for `FT_RASTER_FLAG_DIRECT" to preserve API. The speed gain
is about 5%.

* src/smooth/ftgrays.c (gray_render_span): Removed. The code is
migrated to...
(gray_hline): ... here.
2016-09-01 22:56:24 -04:00
Alexei Podtelezhnikov f44ddfda45 [smooth] Streamline pixmap drawing a bit more.
Zero coverage is unlikely (1 out of 256) to warrant checking. This
gives 0.5% speed improvement in dendering simple glyphs.

* src/smooth/ftgrays.c (gray_hline, gray_render_span): Remove checks.
2016-08-30 23:21:23 -04:00
Alexei Podtelezhnikov e73055c791 [smooth] Streamline pixmap drawing.
This gives 2% speed improvement in rendering simple glyphs.

* src/smooth/ftgrays.c (TPixmap): Reduced pixmap descriptor with a
pointer to its bottom-left and pitch to be used in...
(gray_TWorker): ... here.
(gray_render_span): Move pixmap flow check from here...
(gray_raster_render): .. to here.
2016-08-29 23:15:35 -04:00
Alexei Podtelezhnikov 4d3f7ca8ce [smooth] Reduce stack of band boundaries.
* src/smooth/ftgrays.c (gray_TBand): Removed.
(gray_convert_glyph): Updated to stack band boundaries concisely.
2016-08-27 23:25:54 -04:00
Werner Lemberg 57aa83911a * src/cid/cidload.c (cid_face_open): Improve handling of `SDBytes'. 2016-08-26 11:59:50 +02:00
Werner Lemberg 3c61a2f51d [cid] Fix commit from 2016-05-16.
* src/cid/cidparse.c (cid_parser_new): Fix off-by-one errors.
2016-08-26 11:50:09 +02:00
Werner Lemberg f3e71bab9e [sfnt] Cache offset and size to bitmap data table.
This commit avoids `EBDT' and friends being looked up again and
again while loading a single embedded bitmap.

* include/freetype/internal/tttypes.h (TT_FaceRec)
[TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: New fields `ebdt_start' and
`ebdt_size'.

* src/sfnt/ttsbit.c (tt_sbit_decoder_init): Move table lookup to ...
(tt_face_load_sbit): ... this function; also store the table size
and offset.
2016-08-26 10:31:30 +02:00
Alexei Podtelezhnikov 9a444f0547 * src/smooth/ftgrays.c (gray_raster_render): Minor tweaks. 2016-08-25 22:36:01 -04:00
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 69ce97391c [sfnt] Fix previous commit (#48901).
* src/sfnt/ttcmap.c (tt_cmap4_char_map_binary): Thinkos.
2016-08-25 19:49:52 +02:00
Werner Lemberg acd1879897 [sfnt] Speed up handling of invalid format 4 cmaps.
* src/sfnt/ttcmap.c (tt_cmap4_next, tt_cmap4_char_map_binary): Add
tests for `num_glyph' from `tt_cmap4_char_map_linear'.
2016-08-25 17:12:46 +02:00
Werner Lemberg 327f2e3e55 * include/freetype/internal/ftdriver.h: Remove unused typedefs. 2016-08-25 12:46:08 +02:00
Alexei Podtelezhnikov cb4388783c [smooth] Simplify span rendering.
This removes unnecessary complexity of span merging and buffering.
Instead, the spans are rendered as they come, speeding up the
rendering by about 5% percents as a result.

* src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed.
(gray_TWorker): Remove span buffer and related fields.
(gray_sweep, gray_hline): Updated.

* include/freetype/ftimage.h: Remove documentation note about
`FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone.
2016-08-22 23:06:45 -04:00
Werner Lemberg a4c2a31138 [truetype] Fix `MPS' instruction.
According to Greg Hitchcock, MPS in DWrite really returns the point
size.

* src/truetype/ttobjs.h (TT_SizeRec): Add `point_size' member.

* src/truetype/ttdriver.c (tt_size_request): Set `point_size'.

* src/truetype/ttinterp.h (TT_ExecContextRec): Add `pointSize'
member.

* src/truetype/ttinterp.c (TT_Load_Context): Updated.
(Ins_MPS): Fix instruction.
2016-08-22 19:32:34 +02:00
Werner Lemberg 8521ad99b0 [lzw] Optimize last commit.
* src/lzw/ftzopen.c (ft_lzwstate_get_code): Move check into
conditional clause.
2016-08-16 13:44:38 +02:00
Werner Lemberg 6df68335f1 minor. 2016-08-16 09:50:07 +02:00
Werner Lemberg 548f68d805 [lzw] Avoid invalid left shift.
* src/lzw/ftzopen.c (ft_lzwstate_get_code): Limit `num_bits'.
2016-08-16 09:46:40 +02:00
Werner Lemberg 8d7b9198e3 [lzw] Avoid buffer overrun.
Reported as

  https://bugzilla.mozilla.org/show_bug.cgi?id=1273283

* src/lzw/ftzopen.c (ft_lzwstate_refill): Ensure `buf_size' doesn't
underflow.
2016-08-16 08:07:58 +02:00
Werner Lemberg cf4224adb9 [truetype] Fix compiler warning.
* src/truetype/ttgload.c (load_truetype_glyph): Add cast.
2016-08-16 06:44:23 +02:00
Werner Lemberg 248f5629d8 [winfonts] Avoid zero bitmap width and height.
Reported as

  https://bugzilla.mozilla.org/show_bug.cgi?id=1272173

* src/winfonts/winfnt.c (FNT_Face_Init): Check zero pixel height.
(FNT_Load_Glyph): Check for zero pitch.
2016-08-13 06:53:53 +02:00
Alexei Podtelezhnikov 125f2b63a5 * src/truetype/ttinterp.c (Pop_Push_Count): Revert changes. 2016-08-11 23:40:05 -04:00
Alexei Podtelezhnikov 49d474f6f6 * src/truetype/ttinterp.c (TT_RunIns): Minor and formatting. 2016-08-11 23:03:09 -04:00
Alexei Podtelezhnikov dce554b1bd * src/truetype/ttinterp.c (Pop_Push_Count): Fix some entries. 2016-08-11 07:29:19 +02:00
Peter Klotz 3b37bfc4b5 * src/smooth/ftgrays.c (gray_hline): Fix uninitialized access. 2016-08-10 22:38:08 -04:00
Werner Lemberg 5224aae8bb [sfnt] Use correct type for `italicAngle' field (#48732).
* src/sfnt/ttload.c (tt_face_load_post): Fix types.
2016-08-10 19:47:29 +02:00
Werner Lemberg 53059f92d6 [sfnt] Fix `FT_Get_Advance' for bitmap strikes.
`FT_Get_Advance' returns 0 for bitmap fonts.  It first gets the
advance value from the font table and then scales it by the
`font->size->metrics->x_scale' field.  But `FT_Select_Size' doesn't
set that value for bitmap fonts and the advance gets scaled to zero.

Taken from

  https://github.com/behdad/harfbuzz/issues/252

* src/sfnt/ttsbit.c (tt_face_load_strike_metrics)
<TT_SBIT_TABLE_TYPE_EBLC>: Set scale values.
2016-08-07 09:01:33 +02:00
Behdad Esfahbod 8183eeb18d [truetype] Fix GX variation handling of composites.
* src/truetype/ttgload.c (load_truetype_glyph)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Check `ARGS_ARE_XY_VALUES' flag.
2016-08-06 23:12:55 +02:00
Alexei Podtelezhnikov 97718f3c91 [smooth] Minor refactoring.
* src/smooth/ftgrays.c (gray_render_scanline, gray_render_line):
Updated.
2016-08-05 23:36:16 -04:00
Werner Lemberg fae4ec0525 [sfnt, truetype] Don't abort on invalid `maxComponentDepth'.
Since 2016-05-16 we detect infinite recursion directly.

* src/sfnt/ttload.c (tt_face_load_maxp): Don't adjust
`maxComponentDepth'.
* src/truetype/ttgload.c (load_truetype_glyph): Don't abort if
`maxComponentDepth' is not valid.  Instead, simply adjust its value
and emit a tracing message.
2016-07-29 06:43:32 +02:00
Werner Lemberg d9c7f5aa6e * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Minor.
No functional change.
2016-07-26 20:20:27 +02:00
Hin-Tak Leung 3a528bbe5a [truetype] Record the end of IDEFs.
To match the logic in FDEF.  The value of the end is only used for
bound-checking in `Ins_JMPR', so it may not have been obvious that
it was not recorded.  Tested (as part of Font Validator 2.0) all the
fonts on Fedora and did not see any change.

* src/truetype/ttinterp.c (Ins_IDEF): Updated.
2016-07-22 06:59:36 +02:00
Werner Lemberg 7f63105c07 [truetype] Sanitizer fix, second try.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary
tests and use only one slot more.
2016-07-19 21:35:58 +02:00
Werner Lemberg e69f34b1e2 [truetype] Sanitizer fix.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Increase array
to fix nested loops.
2016-07-19 07:06:19 +02:00
Werner Lemberg a3b70d76ba [truetype] Make GETDATA work only for GX fonts.
* src/truetype/ttinterp.c (opcode_name): Updated.
(Ins_GETDATA): Only define for `TT_CONFIG_OPTION_GX_VAR_SUPPORT'.
(TT_RunIns): Updated.
2016-07-18 06:23:36 +02:00
Werner Lemberg 8c93013ca3 [truetype] Add support for Apple's
GETDATA[], opcode 0x92

bytecode instruction.  It always returns 17, and we have absolutely
no idea what it is good for...

* src/truetype/ttinterp.c (Pop_Push_Count, opcode_name): Updated.
(Ins_GETDATA): New function.
(TT_RunIns): Add it.
2016-07-17 22:40:31 +02:00
Werner Lemberg e084360961 [truetype] Add bytecode support for GX variation fonts.
This commit implements undocumented (but confirmed) stuff from
Apple's old bytecode engine.

  GETVARIATION[], opcode 0x91
    This opcode pushes normalized variation coordinates for all axes
    onto the stack (in 2.14 format).  Coordinate of first axis gets
    pushed first.

  GETINFO[], selector bit 3
    If GX variation support is enabled, bit 10 of the result is set
    to 1.

* src/truetype/ttinterp.c: Include FT_MULTIPLE_MASTERS_H.
(opcode_name) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated.
(Ins_GETINFO) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle selector
bit 3, checking support for variation glyph hinting.
(Ins_GETVARIATION) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function
to implement opcode 0x91.
(TT_RunIns) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Handle opcode 0x91.
2016-07-16 18:46:28 +02:00
Werner Lemberg 32a320625e [truetype] Fix GETINFO bytecode instruction.
* src/truetype/ttinterp.c (Ins_GETINFO): Fix return value for
stretching information.
2016-07-16 16:39:26 +02:00
Behdad Esfahbod 69446ddcce [truetype] Make all glyphs in `Zycon' GX font work.
* src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix boundary
tests.
2016-07-16 10:52:38 +02:00
Werner Lemberg a3b61253a7 [truetype] Fix GX delta tracing.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Trace
relative point movements.
2016-07-16 08:16:16 +02:00
Werner Lemberg f147fb2881 [truetype] More fixes for GX.
This finally fixes the rendering of the cyclist and the lizard in
the `Zycon' font.

* src/truetype/ttgxvar.c (ft_var_readpackedpoints): `first' point
index is always cumulative.

(tt_handle_deltas): Rename to...
(tt_interpolate_deltas): ... This.
Add new parameter for output point array.
Update caller.

(TT_Vary_Apply_Glyph_Deltas): Add `points_out' array; it now holds
the intermediate results of `tt_interpolate_deltas' that are to be
added to `outline->points'.
2016-07-16 07:06:21 +02:00
Werner Lemberg aafff57428 * src/autofit/aflatin.c (af_latin_hints_compute_segments): Thinko.
`max_pos' is always larger than `min_pos' so `FT_ABS' is not needed.

Reported by Alexei.
2016-07-16 06:41:39 +02:00
Nikolaus Waxweiler 86eb43a994 * src/truetype/ttinterp.c (Ins_MIRP): Fix copy-and-paste error.
Problem reported by Hin-Tak Leung.
2016-07-16 06:37:57 +02:00
Werner Lemberg 1831e6f068 [autofit] Update and improve segment and edge tracing.
* src/autofit/afhints.c (af_glyph_hints_dump_segments): Trace
`delta' also.
Don't show first point of segment as a replacement for `pos'; this
is (a) misleading, since the difference to `pos' can be almost
arbitrarily large in corner cases, and (b) it is better to have all
segment data in font units instead of a single value given in output
space coordinates.
Improve layout.
(af_glyph_hints_dump_edges): Show px->units and units->px conversion
values for convenience.
Improve layout.
2016-07-15 10:35:32 +02:00
Werner Lemberg 894c0228ca [autofit] For edges, reject segments wider than 1px (#41334).
* src/autofit/afhints.h (AF_SegmentRec): New member `delta'.

* src/autofit/aflatin.c (af_latin_hints_compute_segments): Compute
`delta'.
(af_latin_hints_compute_edges): Reject segments with a delta larger
than 0.5px.
2016-07-15 10:23:11 +02:00
Werner Lemberg ff655437e3 * include/freetype/freetype.h (FT_IS_NAMED_INSTANCE): New macro. 2016-07-14 15:01:55 +02:00
Werner Lemberg ee3f36f6b3 [sfnt] Fix `face_index' value in `FT_Face' for named instances.
* src/sfnt/sfobjc.s (sfnt_init_face): Don't strip off higher 16bits.
2016-07-14 10:25:20 +02:00
Werner Lemberg 631e218147 * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix tracing. 2016-07-14 06:25:05 +02:00
Behdad Esfahbod 0f9ddf20c8 [truetype] Fix gxvar delta interpolation.
The coordinates of the base font should be used for interpolation
purposes, NOT the current points (i.e., the result of accumulation
of previous deltas).

* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Initialize
`points_org' before looping over all tuples.
2016-07-14 06:08:39 +02:00
Werner Lemberg 4261103e35 Minor. 2016-07-14 06:03:52 +02:00
Werner Lemberg 17fa9f714f Merge branch '2.6.5'. 2016-07-12 08:06:23 +02:00
Werner Lemberg f9b1871ded * Version 2.6.5 released.
=========================

Tag sources with `VER-2-6-5'.

* include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Comment out.

* docs/VERSION.TXT: Add entry for version 2.6.5.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.4/2.6.5/, s/264/265/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 5.

* builds/unix/configure.raw (version_info): Set to 18:5:12.
* CMakeLists.txt (VERSION_PATCH): Set to 5.

* docs/CHANGES: Updated.
2016-07-12 06:18:49 +02:00
Werner Lemberg 605946af6d Conditionally compile environment support.
* include/freetype/internal/ftobjs.h, src/autofit/afmodule.c,
src/base/ftobjs.c, src/cff/cffdrivr.c, src/truetype/ttdriver.c:
Decorate with `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES' where
necessary.
2016-07-11 16:14:36 +02:00
Werner Lemberg 8f8ae8c52d Handle properties in `FREETYPE_PROPERTIES' environment variable.
This commit covers the most important one.

* src/autofit/afmodule.c (af_property_set): Handle `warping',
`darkening-parameters', and `no-stem-darkening'.

* src/cff/cffdrivr.c (cff_property_set): Handle
`darkening-parameters', `hinting-engine', and `no-stem-darkening'.

* src/truetype/ttdriver.c (tt_property_set): Handle
`interpreter-version'.
2016-07-11 15:11:38 +02:00
Werner Lemberg c3e83b4662 Replace calls to `atol' with `strtol'.
We later on need strtol's `endptr' feature.

* include/freetype/config/ftstdlib.h (ft_atol): Replace with...
(ft_strtol): ... this.

* src/base/ftdbgmem.c (ft_mem_debug_init): Updated.
* src/cid/cidparse.c (cid_parser_new): Ditto.
* src/type42/t42drivr.c (t42_get_name_index), src/type42/t42objs.c
(T42_GlyphSlot_Load): Ditto.
2016-07-11 05:56:26 +02:00
Werner Lemberg 84d3df7501 Implement handling of `FREETYPE_PROPERTIES' environment variable.
Recognizing properties follows in another commit.

* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES): New macro.

* include/freetype/config/ftstdlib.h (ft_getenv): New macro.

* src/base/ftinit.c (ft_set_default_properties): New function to
parse `FREETYPE_PROPERTIES' and calling `ft_property_string_set'.
(FT_Init_FreeType): Updated.
2016-07-11 00:12:11 +02:00
Werner Lemberg c3beb30a21 Add function `ft_property_string_set'.
This is a preparation for handling an `FREETYPE_PROPERTIES'
environment variable to control (some) driver properties.

No change in functionality.

* src/base/ftobjs.c (ft_property_do): Add `value_is_string'
parameter.
(ft_property_string_set): New function.
(FT_Property_Set, FT_Property_Get): Updated.

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

* include/freetype/internal/services/svprop.h
(FT_Properties_SetFunc): Add `value_is_string' parameter.

* src/autofit/afmodule.c (af_property_set), src/cff/cffdrivr.c
(cff_property_set), src/truetype/ttdriver.c (tt_property_set):
Updated, emitting an error currently if `value_is_string' is set.
2016-07-10 07:11:45 +02:00
suzuki toshiya 83c877f11c [mac] Fix ftexport.sym target in Jamfile.
* Jamfile: Update the directories of the header files scanned for
ftexport.sym.  They were incorrect since the migration of the
header files, on 2015-06-22.  Either inexisting include/cache
(removed on 2006-03-20) is not needed to be listed explicitly.
Now ftmac.h is scanned only in the case of Mac OS & Mac OS X.
2016-07-09 13:45:50 +09:00
Werner Lemberg 971f10b63a Formatting. 2016-07-08 06:59:31 +02:00
Werner Lemberg 109d1662d4 Revert "Formatting."
This reverts commit a0f3a1f25a.
2016-07-08 06:58:46 +02:00
Werner Lemberg a0f3a1f25a Formatting. 2016-07-08 06:53:46 +02:00
Alexei Podtelezhnikov 4a2f8f1faf [smooth] Sub-banding protocol revision.
Rasterization sub-banding is utilized at large sizes while using
rather small fixed memory pool. Indeed it is possible to make an
educated guess how much memory is necessary at a given size for a
given glyph. It turns out that, for large majority of European glyphs,
you should store about 8 times more boundary pixels than their height.
Or, vice versa, if your memory pool can hold 800 pixels the band
height should be 100 and you should sub-band anything larger than
that. Should you still run out of memory, FreeType bisects the band
but you have wasted some time. This is what has been implemented in
FreeType since the beginning.

It was overlooked, however, that the top band could grow to twice the
default band size leading to unnecessary memory overflows there. This
commit fixes that. Now the bands are distributed more evenly and
cannot exceed the default size.

Now the magic number 8 is really suitable for rather simple European
scripts. For complex Chinese logograms the magic number should be 13
but that is subject for another day.

* src/smooth/ftgrays.c (gray_convert_glyph): Revise sub-banding
protocol.
2016-07-08 00:16:07 -04:00
suzuki toshiya 783cbcd67d [mac] Fix Savannah bug #48417.
Mac OS X linker throws errors when `-exported_symbol_list' input
file includes non-existing symbols.  Reported by Ryan Schmidt.

* builds/exports.mk: Exclude ftmac.h from the headers for apinames
by default.  Include it when ftmac.c would be compiled.
2016-07-07 18:55:37 +09:00
Werner Lemberg 474682ff87 * src/truetype/ttinterp.c (TInstruction_Function): Removed, unused. 2016-07-06 08:54:35 +02:00
Werner Lemberg d80fe69651 * Version 2.6.4 released.
=========================

Tag sources with `VER-2-6-4'.

* docs/VERSION.TXT: Update documentation and bump version number to
2.6.4.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.3/2.6.4/, s/263/264/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.

* builds/unix/configure.raw (version_info): Set to 18:4:12.
* CMakeLists.txt (VERSION_PATCH): Set to 4.

* docs/CHANGES: Updated.
2016-07-05 15:40:19 +02:00
Werner Lemberg adfec0af94 * src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Fix compiler warning. 2016-07-05 07:38:52 +02:00
Alexei Podtelezhnikov d1876e5832 [smooth] Variable type revision (part 2).
* src/smooth/ftgrays.c (TArea): Restore original definition as `int'.
(gray_render_line) [FT_LONG64]: Updated.
(gray_convert_glyph): 32-bit band bisection stack should be 32 bands.
(gray_convert_glyph_inner): Trace successes and failures.
2016-07-04 23:46:53 -04:00
Werner Lemberg 5e353f0786 [autofit] Handle single-point contours as segments.
Doing so allows us to link them to edges – some fonts like
`NotoSansGurmukhi-Regular' have such isolated points sitting exactly
on other outlines.

* src/autofit/aflatin.c (af_latin_hints_compute_segments): Don't
ignore one-point contours but handle them specially as one-point
segments.
(af_latin_hints_compute_edges): Append one-point segments to edges
if possible.
2016-07-04 14:59:22 +02:00
Werner Lemberg 8b8c4408dd [autofit] Remove unused structure members.
* src/autofit/afhints.h (AF_SegmentRec, AF_EdgeRec): Remove
`num_linked'.

* src/autofit/afcjk.c (af_cjk_hints_link_segments): Updated.
2016-07-02 18:35:50 +02:00
Werner Lemberg aab2b8d83e [autofit] Update to Unicode 9.0.0.
* src/autofit/afranges.c (af_arab_nonbase_uniranges,
af_cyrl_uniranges): Add new data.
2016-07-02 08:37:44 +02:00
Alexei Podtelezhnikov 597c69596c [smooth] Variable type revision (part 1).
This patch restores original `TCoord' definition as `int' so that the
rendering pool is used more efficiently on LP64 platforms (unix).

* src/smooth/ftgrays.c (gray_TWorker, TCell, gray_TBand): Switch some
fields to `TCoord'.
(gray_find_cell, gray_render_scanline, gray_render_line, gray_hline,
gray_sweep, gray_convert_glyph): Updated.
2016-07-01 23:27:41 -04:00
Alexei Podtelezhnikov ef0a3e7e65 [smooth] Minor clean-ups.
* src/smooth/ftgrays.c (gray_TWorker): Remove redundant `ycount'.
(gray_sweep, gray_convert_glyph, gray_dump_cells): Updated.
2016-06-28 22:56:22 -04:00
Alexei Podtelezhnikov c9cf359fd2 [smooth] Minor clean-ups.
* src/smooth/ftgrays.c (gray_convert_glyph): Do not use volatile
qualifier.
(gray_raster_render): Move span initializations from here.
(gray_sweep): ... to here and remove unused `target' argument.
2016-06-28 00:30:58 -04:00
Alexei Podtelezhnikov 999bcee2d7 [pcf] Fix handling of very large fonts (#47708).
* src/pcf/pcfread.c (pcf_get_encodings): Make `encodingOffset' an
unsigned short.
Only reject `0xFFFF' as an invalid encoding offset.
2016-06-26 08:27:29 +02:00
Werner Lemberg 8ba407a7fe [truetype] Really fix deallocation in case of error (#47726).
* src/truetype/ttgload.c (load_truetype_glyph): Thinko; initialize
`outline.points' also.
2016-06-25 18:09:22 +02:00
Alexei Podtelezhnikov 25e82bc2b5 [smooth] Consolidate memory management.
* src/smooth/ftgrays.c (gray_init_cells): Remove function.
(gray_TWorker): Remove fields that become local variables.
(gray_raster_render): Move rendering buffer declaration from here.
(gray_convert_glyph): ... to here and update accordingly.
2016-06-23 23:17:39 -04:00
Alexei Podtelezhnikov e22334812f [smooth] Consolidate boundary checks.
Removing the checks from `gray_hline' shaves 1% off rendering speed.

* src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_MIN' and `FT_MAX'.
(gray_TWorker): No need to store `clip_box'.
(gray_hline): Remove unnecessary boundary checks.
(gray_convert_glyph): Move boundary checks from here.
(gray_raster_render): ... to here and consolidate.
2016-06-22 23:14:26 -04:00
Alexei Podtelezhnikov 78e8fc0dad [smooth] Use `FT_Outline_Get_CBox'.
* src/smooth/ftgrays.c [STANDALONE_]: Duplicate `FT_Outline_Get_CBox'.
(gray_compute_cbox): Remove this function.
(gray_convert_glyph): Update to use `FT_Outline_Get_CBox'.
2016-06-22 00:04:08 -04:00
Alexei Podtelezhnikov c05a1c3f04 Typos. 2016-06-21 23:12:54 -04:00
Werner Lemberg 20c6ef4c25 [smooth] Remove compiler warnings.
* src/smooth/ftgrays.c (gray_convert_glyph): Fix reports from clang.
2016-06-21 11:39:34 +02:00
Alexei Podtelezhnikov 6d07034609 Typos. 2016-06-20 01:09:18 -04:00
Alexei Podtelezhnikov 3c64af98ff [smooth] Sanitize memory managenent.
* src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.
2016-06-20 00:01:55 -04:00
Alexei Podtelezhnikov 74fd251b4a [smooth] Remove `band_shoot' that never worked.
* src/smooth/ftgrays.c (gray_TWorker): Remove `band_shoot'.
(gray_convert_glyph): Updated.
2016-06-18 22:31:26 -04:00
Alexei Podtelezhnikov 72a0653142 [raster, smooth] Handle FT_RENDER_POOL_SIZE better.
* src/raster/ftraster.c (FT_MAX_BLACK_POOL): New macro.
(ft_black_render): Updated.
* src/smooth/ftgrays.c (FT_MAX_GRAY_POOL): New macro.
(gray_raster_render): Updated.
2016-06-17 23:10:22 -04:00
Werner Lemberg 1e36c2e203 * src/base/md5.c: Updated to recent version. 2016-06-16 06:17:54 +02:00
Alexei Podtelezhnikov 32acceff83 * src/smooth/ftgrays.c (gray_hline): Optimize if-condition. 2016-06-14 23:38:17 -04:00
Werner Lemberg 05a55a56e2 [autofit] Add support for Cherokee script.
* src/autofit/afblue.dat: Add blue zone data for Cherokee.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Cherokee standard characters.

* src/autofit/afranges.c: Add Cherokee data.

* src/autofit/afstyles.h: Add Cherokee data.
2016-06-13 12:16:45 +02:00
David Capello f40d7d2b6d [cmake] Avoid modifying `ftconfig.h' and `ftoption.h' files.
* CMakeLists.txt: Each time cmake is run those files are
modified and the whole FreeType library is recompiled.  With this
change we change the files only if there are real modifications, so
we can avoid recompilations.
2016-06-09 10:55:52 +02:00
Werner Lemberg b6b26f4535 [bdf] Check number of properties (#48166).
* src/bdf/bdflib.c (_bdf_parse_start): Implement.
2016-06-09 06:53:48 +02:00
Alexei Podtelezhnikov 77180c7adc [smooth] Re-enable new line renderer on 64-bit archs.
* src/smooth/ftgrays (gray_render_line): Conditionally re-enable new
implementation, where it is safe from overflows.
2016-06-08 23:31:28 -04:00
Alexei Podtelezhnikov 9cf232ed66 [smooth] Minor clean-ups.
* src/smooth/ftgrays.c (gray_dump_cells): Move out of the way.
(gray_render_span): Remove spurious casts and streamline.
2016-06-08 23:19:41 -04:00
Werner Lemberg 223d002c63 [autofit] Add support for Ethiopic script.
* src/autofit/afblue.dat: Add blue zone data for Ethiopic.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Ethiopic standard characters.

* src/autofit/afranges.c: Add Ethiopic data.

* src/autofit/afstyles.h: Add Ethiopic data.
2016-06-07 13:52:14 +02:00
Werner Lemberg 15eab36340 [autofit] Fix compilation with VS2016 (#48126).
This compiler doesn't recognize the end-of-comment sequence `*/' if
it immediately follows non-ASCII characters.

* src/autofit/afscript.h: Ensure whitespace before `*/'.
2016-06-07 10:36:27 +02:00
Alexei Podtelezhnikov 04e7c7447b ChangeLog fixes. 2016-06-04 23:05:59 -04:00
Werner Lemberg 969960cc90 Comment. 2016-06-04 07:02:46 +02:00
Werner Lemberg 5485a34c77 [truetype] Fix missed test for named instances (#48122).
* src/truetype/ftobjs.c (Mac_Read_sfnt_Resource): Implement.
2016-06-04 06:57:32 +02:00
Nikolaus Waxweiler b459882804 [truetype] Let SHPIX move points in the twilight zone in v40.
* src/truetype/ttinterp.c (Ins_SHPIX): Allow SHPIX to move points in
the twilight zone.  Otherwise, treat SHPIX the same as DELTAP.
Unbreaks various fonts such as older versions of Rokkitt and DTL
Argo T Light that would glitch severly after calling ALIGNRP after a
blocked SHPIX.
2016-05-31 08:39:52 +02:00
Werner Lemberg d28eac249a [type42] Support `CharStrings' entry format as created by LilyPond.
* src/type42/t42parse.c (t42_parse_charstrings): Handle entries
having the format

  (foo) cvn 12345 def
2016-05-30 00:23:59 +02:00
Werner Lemberg 46d36904b0 * src/autofit/afranges.c: Remove `UL' postfix from hex numbers.
Suggested by Alexei.  `UL' is only needed for 16bit compilers, but
it seems noone is using this anymore (and we no longer test whether
FreeType compiles in such an environment).  Otherwise, it is easy to
add the postfix to the `AF_UNICODE_RANGE' macro.
2016-05-28 19:38:43 +02:00
Alexei Podtelezhnikov e9f950938f [smooth] Shrink bisection stack.
The convergence of Bézier flatteners is fast with the deviation
from straight line being assymptotically cut 4-fold on each bisection.
This justifies smaller bisection stack size.

* src/smooth/ftgrays.c (gray_TWorker): Remove common `bez_stack'.
(gray_render_conic): Create and use conic `bez_stack'. Move back the
band analysis from...
(gray_conic_to): ... here.
(gray_render_cubic): Create and use cubic `bez_stack'. Move back the
band analysis from...
(gray_cubic_to): ... here.
(gray_move_to): Updated.
2016-05-26 23:46:38 -04:00
Werner Lemberg e97918c57b [autofit] Fixes for Armenian and Gujarati ranges.
* src/autofit/afranges.c (af_armn_uniranges): Corrected.
(af_guru_nonbase_uniranges): Make U+0A3E a base character.
2016-05-25 07:13:29 +02:00