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2019-10-22 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (woff2_open_font): Avoid undefined shift.
Also improve tracing.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18390
2019-10-10 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/sfnt/pngshim.c (premultiply_data): Optimize for __SSE__ only.
2019-10-10 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (reconstruct_glyf): Check `triplet_size'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18108
2019-10-09 John Tytgat <John.Tytgat@esko.com>
[cff] Fix FT_FACE_FLAG_GLYPH_NAMES for CFF2 based fonts (#57023).
* src/cff/cffobjs.c (cff_face_init): Don't set
FT_FACE_FLAG_GLYPH_NAMES for CFF2 based fonts.
2019-10-08 Werner Lemberg <wl@gnu.org>
[woff2] Fix SFNT table checks.
Also reduce number of SFNT table lookups.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18065
* include/freetype/internal/wofftypes.h (WOFF2_InfoRec): Add fields
`glyf_table', `loca_table', and `head_table'.
* src/sfnt/sfwoff2.c (reconstruct_glyf): Update signature.
Use table pointers in `info' parameter.
(get_x_mins): Check `maxp_table'
Use table pointers in `info' parameter.
(reconstruct_font): Use and set table pointers in `info' parameter.
Fix check for `glyf' and `loca' tables.
Update call to `reconstruct_glyf'.
(woff2_open_font): Updated.
2019-10-06 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (reconstruct_glyf): Fix reallocation.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18046
2019-10-06 Werner Lemberg <wl@gnu.org>
Improve memory debugging.
* include/freetype/internal/ftmemory.h (FT_MEM_FREE): Use
`FT_DEBUG_INNER' to set source code file name and line.
* src/base/ftdbgmem.c (ft_mem_table_remove): Better formatting of
tracing message.
2019-10-03 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2 (reconstruct_font): Fix reallocation.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17966
2019-10-01 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftstroke.c (ft_stroker_inside): Speed up.
2019-10-01 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2 (woff2_open_font): Initialize `woff2.ttc_fonts'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17804
2019-09-30 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (reconstruct_font): Fix memory leak.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17812
2019-09-30 Werner Lemberg <wl@gnu.org>
[woff2] Reject fonts without `head' table.
Also fix memory deallocation in case of error.
`head' problem reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17820
* src/sfnt/sfwoff2.c (reconstruct_glyf): Don't use `stream_close'.
Abort if `head_table' is NULL.
Don't free `transformed_buf' in case of error.
(woff2_open_font): Don't set `uncompressed_buf' to NULL.
2019-09-29 Werner Lemberg <wl@gnu.org>
[woff2] Fix compiler warnings.
Problem reported by Alexei.
* src/sfnt/sfwoff2.c (reconstruct_glyf): Initialize `x_min'.
(reconstruct_font): Initialize `num_hmetrics'.
(woff2_open_font): Initialize `info'.
2019-09-28 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (woff2_open_font): Fix sanity check.
Correct thinkos in patch from 2019-09-01.
2019-09-28 Werner Lemberg <wl@gnu.org>
[woff2] Fix memory leaks.
One of them reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17766
* src/sfnt/sfwoff2.c (woff2_open_font): Free `info->x_mins' and
`woff2->ttc_fonts'.
(reconstruct_glyf): Initialize `info->x_mins'.
2019-09-27 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftstroke.c (ft_stroker_cap): Speed up caps.
2019-09-25 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftstroke.c (ft_stroker_outside): Speed up clipped miter.
* include/freetype/ftstroke.h: Wordsmith miter docs.
2019-09-25 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (woff2_open_font): Check (sum of) table sizes.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17684
2019-09-23 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftstroke.c (ft_stroke_border_arcto): Speed up calculations.
2019-09-20 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Fix memory leaks.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16896
* src/sfnt/sfwoff2.c (woff2_open_font): Fix error handling.
Free `uncompressed_buf'.
(reconstruct_font): Free `transformed_buf'.
2019-09-17 Werner Lemberg <wl@gnu.org>
* src/otvalid/otvcommon.c (otv_Coverage_get_last): Guard `count'.
Problem reported by Marc Schönefeld <marc.schoenefeld@gmx.org>.
2019-09-17 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (woff2_open_font): Check table index.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17100
2019-09-15 Avi Halachmi (:avih) <avihpit@yahoo.com>
[cmake] Don't fail if brotli is missing (#56894).
The libs which cmake controls are commented out at
include/freetype/config/ftoption.h
and cmake un-comment each enabled library, but the brotli option was
not commented out, therefore `FT_CONFIG_OPTION_USE_BROTLI' remained
defined even if brotli was missing/disabled/etc.
Comment it such that cmake can control it, which means leaving it
undefined if brotli is missing.
* include/freetype/config/ftoption.h: Fix typo.
2019-09-05 Werner Lemberg <wl@gnu.org>
[cmake] Add brotli support.
* CMakeLists.txt (FT_WITH_BROTLI): New option.
* builds/cmake/FindBrotliDec.cmake: New file.
2019-09-05 Werner Lemberg <wl@gnu.org>
Fix handling of `AF_CONFIG_OPTION_INDIC'.
* devel/ftoption.h, include/freetype/config/ftoption.h:
`AF_CONFIG_OPTION_INDIC' needs `AF_CONFIG_OPTION_CJK'.
2019-09-05 Werner Lemberg <wl@gnu.org>
CMakeLists.txt: Fix generation of DLL related stuff (#56852).
Extract `version_info' variable from `builds/unix/configure.raw' and
use the data to correctly set `LIBRARY_VERSION' and
`LIBRARY_SOVERSION'.
Also use the data to set `ft_version' field in `freetype2.pc'.
Also fix the needed minimum version of HarfBuzz in `freetype2.pc'.
2019-09-03 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (compute_ULong_sum): Fix undefined shift.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16933
2019-09-01 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfwoff2.c (woff2_open_font): Add sanity check.
Don't trust `totalSfntSize' unconditionally.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16893
2019-08-27 Dominik Röttsches <drott@chromium.org>
[woff2] Don't use `FT_UInt64' (#56815).
* src/sfnt/sfwoff2.c (woff2_open_font): Use `FT_UInt32' for
`file_offset'. This fixes builds on platforms where `FT_LONG64' is
not defined while still being sufficient to store a file offset.
2019-08-27 Werner Lemberg <wl@gnu.org>
[truetype] Prevent crash in `TT_Set_Named_Instance' (#56813).
* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Fix error
handling.
2019-08-27 Werner Lemberg <wl@gnu.org>
[woff2] Fix compiler warnings.
* src/sfnt/sfwoff2.c (read_num_hmetrics): Remove unused argument
`table_len'.
Update caller.
(triplet_decode, compute_bbox, store_loca, reconstruct_glyf): Make
`i' variable unsigned.
(reconstruct_glyph): Remove condition which is always false.
(reconstruct_html): Removed unused argument `transformed_size'.
Update caller.
* src/sfnt/woff2tags.c (woff2_known_tags): Remove condition which is
always false.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Check whether known tag is in array bounds.
If table tag is not 0x3f, we expect a value between 0 and 62. If
this is not the case, exit with errors.
* src/sfnt/sfwoff2/c: Check whether table tag makes sense.
* src/sfnt/woff2tags.c: Return 0 if tag is out of bounds.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
* src/sfnt/sfwoff2.c: Improve trace comments.
Adjust tracing levels for comments, and more formatting.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Support `hmtx' reconstruction when `glyf' is untransformed.
`reconstruct_hmtx' requires `info->x_mins' and `info->num_glyphs' to
reconstruct the hmtx table. In case glyf is not transformed, we
call `get_x_mins' which does the necessary work.
* src/sfnt/sfwoff2.c (get_x_mins): New function.
(reconstruct_font): Call get_x_mins.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[sfnt] Support `face->num_faces' for WOFF2 fonts.
Set correct value of `face->num_faces' for WOFF2 fonts. This is
being handled separately because we only load the tables for the
requested font face in `woff2_open_font' and create a single-face
sfnt stream.
The full discussion is at:
https://lists.gnu.org/archive/html/freetype-devel/2019-08/msg00000.html
* src/sfnt/sfobjs.c (sfnt_open_font): Add parameter
`woff2_num_faces'.
(sfnt_init_face): Introduce variable `woff2_num_faces', and change
`face->root.num_faces' if `woff2_num_faces' is set.
* src/sfnt/sfwoff2.c (woff2_open_font): Validate requested face
index and handle negative face indices.
* src/sfnt/sfwoff2.h (woff2_open_font): Add parameter `num_faces' to
declaration.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Improve memory and error handling.
Free up memory after use, and improve error handling.
* src/sfnt/sfwoff2.c (reconstruct_font, woff2_open_font): Implement
changes.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Avoid too many calls to `FT_REALLOC'.
We do this by using `totalSfntSize' as an initial reference, and
extending the buffer when required. This reduces rendering time
considerably.
* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec): Add
`totalSfntSize', rename `total_sfnt_size' to `actual_sfnt_size'.
* src/sfnt/sfwoff2.c (write_buf): Add parameter `dst_size' to keep
track of and update total size of stream.
(WRITE_SFNT_BUF, WRITE_SFNT_BUF_AT): Modify macros accordingly.
(pad4, store_loca, reconstruct_glyf, reconstruct_hmtx,
reconstruct_font): Update parameters to accept `sfnt_size'.
(woff2_open_font): Add variable `sfnt_size'. Use WOFF2 header field
`totalSfntSize' as initial reference (if value makes sense) and
allocate `totalSfntSize' bytes for the sfnt stream. `write_buf'
handles reallocation if and when required. Also resize the stream
to `actual_sfnt_size' after reconstruction.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Reconstruct `loca', `hmtx', and swap out stream.
Add necessary functions to reconstruct loca and hmtx tables (the two
remaining tables that can have a transform). `woff2_open_font' is
now capable of loading a woff2 font face. This code may still need
more refining and better memory management.
* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec): Add total
(final) size of sfnt stream.
(WOFF2_InfoRec): Add header checksum value.
* src/sfnt/sfobjs.c (sfnt_open_font): Change `face_instance_index'
parameter to its pointer so its value can be modified by
`woff2_open_font'.
* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF_AT): New macro to write into
sfnt buffer at given position.
(write_buf): Add parameter `extend_buf' which allows caller to
specify whether buffer should be reallocated before copying data.
(WRITE_SFNT_BUF): Updated.
(pad4, store_loca, reconstruct_htmx): New functions.
(reconstruct_glyf): Calculate loca values and store them.
(reconstruct_font): Call `reconstruct_hmtx', write table record
entries, and calculate table checksums. Also calculate font
checksum and update `checksumAdjustment' entry in head table.
(woff2_open_font): Open stream for sfnt buffer, swap out input
stream and return.
* src/sfnt/sfwoff2.h (woff2_open_font): Modify parameter to accept
pointer to `face_index'.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Reconstruct transformed `glyf' table.
Reconstruct `glyf' table if it is transformed in the uncompressed
table stream. Also add necessary structures, macros and functions.
* include/freetype/internal/wofftypes.h (WOFF2_InfoRec,
WOFF2_SubstreamRec, WOFF2_PointRec): New structures.
(WOFF2_TableRec): s/OrigLength/dst_length/.
* src/sfnt/sfwoff2.c (READ_255USHORT, READ_BASE128): Use
`FT_SET_ERROR' to set implicit `error' variable.
(WRITE_SHORT): New macro.
(N_CONTOUR_STREAM, N_POINTS_STREAM, FLAG_STREAM, GLYPH_STREAM,
COMPOSITE_STREAM, BBOX_STREAM, INSTRUCTION_STREAM): New macros to
refer to substreams of the transformed `glyf' tables.
(Read255UShort, ReadBase128): Return errors set by `FT_READ_XXX'
macros.
(with_sign, safe_int_addition): New functions to add sign to values
based on a flag and perform safe addition respectively.
(triplet_decode): Decode variable-length (flag, xCoordinate,
yCoordinate) triplet for a simple glyph. See
https://www.w3.org/TR/WOFF2/#triplet_decoding
(store_points, compute_bbox, composteGlyph_size, reconstruct_glyf):
New functions.
(reconstruct_font): Call `reconstruct_glyf'.
* src/sfnt/sfwoff2.h: Add required constants.
* src/sfnt/woff2tags.h: Move out constants to `sfwoff2.h'.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Copy un-transformed tables to sfnt stream.
Copy un-transformed tables to the sfnt stream.
* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF): New macro.
(write_buf): New function. Extend memory of `dst' buffer and copy
bytes from `src'.
(compute_ULong_sum): New function. Calculate checksum of table.
(reconstruct_font): Change `FT_Byte* sfnt' to `FT_Byte**
sfnt_bytes'. This has been done because we reallocate memory to
`sfnt' multiple times, which may change the pointer value of `sfnt'.
This new pointer must be propogated back to the caller. Same reason
for using a double pointer in `write_buf'.
* src/sfnt/woff2tags.h (WOFF2_DEFAULT_MAX_SIZE): New macro used for
overflow checking.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Create stream for uncompressed buffer.
Uncompressed buffer is now an `FT_Stream'.
Perform basic checks and start iterating over tables.
* src/sfnt/sfwoff2.c (stream_close, find_table, read_num_hmetrics):
New functions.
(reconstruct_font): Modify parameters and iterate over tables.
(woff2_open_font): Updated.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Handle TTCs and start reconstructing font.
We `handle' TTCs by modifying the `indices' array to point to only
those tables that are part of the requested `face_index'.
Set and use `num_tables' in `WOFF2_TtcFont'.
* src/sfnt/sfwoff2.c (reconstruct_font): New function.
(woff2_open_font): Start reconstruction of font.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Get known tags from function.
Change `KnownTags' to a function (`woff2_known_tags'). This avoids
introducing a global constant array. This function returns the
specified index without *any* checks. The caller must ensure that
`index' is within array limits.
* src/sfnt/sfwoff2.c (woff2_open_font): Change `KnownTags[...]'
notation to `woff2_known_tags( ... )'.
* src/sfnt/woff2tags.c: Perform changes.
* src/sfnt/woff2tags.h: Update definitions.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Minor.
* src/sfnt/sfwoff2.c (woff2_uncompress): Add error message
(woff2_open_font): Free `uncompressed_buf'.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Uncompress Brotli streams and `face_index' support.
WOFF2 compressed stream is now uncompressed if Brotli is available.
This data is stored in a separate buffer (uncompressed_buf) because
it does not contain direct table data. Certain tables have
transformations applied to them, and they must be reconstructed
before we can write those tables to the SFNT stream.
`face_index' is now being passed as a parameter to
`woff2_open_font'.
* src/sfnt/sfobjs.c (sfnt_open_font): Add parameter
`face_instance_index'.
* src/sfnt/sfwoff2.c (woff2_uncompress): New function.
(woff2_open_font): Call `woff2_uncompress'.
(compute_first_table_offset): Fix return type.
* src/sfnt/sfwoff2.h (woff2_open_font): Modify declaration.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
* builds/unix/configure.raw: Change argument name to `brotli'.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
Add Brotli dependency and required checks.
Brotli is required for decompressing WOFF2 font directory streams.
The library is thus being added as an optional dependency for
FreeType.
* builds/unix/configure.raw: Add checks for `libbrotlidec'.
(REQUIRES_PRIVATE, LIBS_PRIVATE, LIBSSTATIC_CONFIG): Updated.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_USE_BROTLI): New macro.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Write SFNT Offset table.
* src/sfnt/sfwoff2.c (WRITE_USHORT, WRITE_ULONG): New macros.
(compare_tags): New function.
(woff2_open_font): Implement it.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
* src/sfnt/sfwoff2.c: #undef macros.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[woff2] Read table and collection directory.
* include/freetype/internal/wofftypes.h (WOFF2_TtcFontRec): New
structure.
(WOFF2_HeaderRec): Add more fields.
* src/sfnt/sfwoff2.c (READ_255USHORT, READ_BASE128, ROUND4): New
macros.
(Read255UShort, CollectionHeaderSize, compute_first_table_offset):
New functions.
(ReadBase128): Use `FT_READ_BYTE'.
(woff2_open_font): Add functionality to read table directory and
collection directory (if present).
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[sfnt] Include `woff2tags.c' for building.
* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `woff2tags.c'.
* src/sfnt/sfnt.c: Include `woff2tags.c'.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[sfnt] Add WOFF2 constants.
Add constants required for WOFF2, and known table tags as defined in
the specification. See
https://www.w3.org/TR/WOFF2/#table_dir_format
for details.
* src/sfnt/woff2tags.c, src/sfnt/woff2tags.h: New files.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[sfnt] Read WOFF 2 header.
Check for WOFF2 tag, call `woff2_open_font', and implement it to read
header according to specification.
* include/freetype/internal/fttrace.h: Add `sfwoff2.c'.
* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `sfwoff2.c'.
* src/sfnt/sfnt.c: Include `sfwoff2.c'.
* src/sfnt/sfobjs.c (sfnt_open_font): Check for `wOF2' tag and call
`woff2_open_font'.
* src/sfnt/sfwoff2.c, src/sfnt/sfwoff2.h: New files.
2019-08-27 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
Add structures for WOFF2.
Add structures and macro for WOFF 2 header and table directory.
* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec,
WOFF2_TableRec_): New structures.
* include/freetype/tttags.h (TTAG_wOF2): New macro.
2019-08-26 Werner Lemberg <wl@gnu.org>
* src/psaux/cffdecode.c (cff_operator_seac): Fix numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16470
2019-08-26 Werner Lemberg <wl@gnu.org>
[type1] Fix `FT_Get_Var_Axis_Flags' (#56804).
* src/type1/t1load.c (T1_Get_MM_Var): Allocate space for axis flags.
Also remove redundant assignment.
2019-07-24 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftbbox.c (cubic_peak): Sanitize left shift (#56586).
2019-07-22 Weiyi Wu <w1w2y3@gmail.com>
* src/cid/cidload.c (cid_hex_to_binary): Fix typo (#56653).
2019-07-12 Werner Lemberg <wl@gnu.org>
[sfnt, winfonts] Avoid memory leaks in case of error (#56587).
* src/sfnt/sfwoff.c (woff_open_font): Call `FT_FRAME_EXIT' in case
of error.
* src/winfonts/winfnt.c (fnt_face_get_dll_font): Ditto.
2019-07-12 Ben Wagner <bungeman@google.com>
Properly handle phantom points for variation fonts (#56601).
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Scale phantom
points if HVAR and/or VVAR is present.
2019-07-04 Werner Lemberg <wl@gnu.org>
[psaux] (2/2) Handle fonts that use SEAC for ligatures (#56580).
The same as previous commit but for the old engine.
* src/psaux/t1decode.c (t1operator_seac): Implement it.
2019-07-04 Chris Liddell <chris.liddell@artifex.com>
[psaux] (1/2) Handle fonts that use SEAC for ligatures (#56580).
As originally intended, a Type 1 SEAC charstring would be used for
an accented glyph (like `acaron' or `uumlaut'), where the advance
width of the SEAC glyph is the same as that of the `base' glyph
(like `a' or `u'). In this case it is not uncommon for the SEAC
glyph to not use an (H)SBW opcode of its own but to rely on the
value from the base glyph.
However, out-of-spec fonts also use SEAC glyphs for ligatures (like
`oe' or `fi'), and in those cases the overall advance width is
greater than that of the `base' glyph. For this reason we have to
allow that the SEAC glyph can have an (H)SBW value of its own, and
if it has, retain this value, rather than the one from the base
glyph.
* src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escSEAC>:
Implement it.
2019-07-01 Werner Lemberg <wl@gnu.org>
* Version 2.10.1 released.
==========================
Tag sources with `VER-2-10-1'.
* docs/VERSION.TXT: Add entry for version 2.10.1.
* README, Jamfile (RefDoc), src/base/ftver.rc,
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/2.10.0/2.10.1/, s/2100/2101/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
* builds/unix/configure.raw (version_info): Set to 23:1:17.
* CMakeLists.txt (VERSION_PATCH): Set to 1.
* include/freetype/fterrors.h (FT_Error_String): Fix C++ compilation.
2019-06-26 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Fix inequality.
Reported by Armin Hasitzka.
2019-06-16 Werner Lemberg <wl@gnu.org>
* src/tools/apinames.c: Formatting, minor edits.
2019-06-16 Werner Lemberg <wl@gnu.org>
[autofit] Disable hinting if no blue zones are available (#56450).
* src/autofit/afglobal.c (af_face_global_get_metrics): Start again
(with dummy hinter module) if no blue zones are present.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Change
signature to return error code.
If no blue zones are found, update `glyph_styles' array to hold
AF_STYLE_NONE_DFLT instead of the current style.
(af_latin_metrics_init): Return internal error code if no blue zones
are found.
2019-06-16 Werner Lemberg <wl@gnu.org>
Towards better VMS support.
More to come.
* builds/vms/LIBS.OPT_IA64, builds/vms/_LINK.OPT_IA64,
builds/vms/vmslib.dat: New files provided by Jouk Jansen
<joukj@hrem.nano.tudelft.nl>.
* builds/vms/ftconfig.h: Update, also from Jouk.
2019-06-13 Werner Lemberg <wl@gnu.org>
* src/autofit/aflatin.c (af_latin_metrics_init_widths): Minor.
2019-06-13 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Restore the span buffering for direct mode only.
The buffer size FT_MAX_GRAY_SPANS is set to 10 spans, which should be
enough to cover the entire scanline for simple glyphs in most cases:
each slightly slanted edge needs up to two spans, plus a filling span
in-between. This is not new, we used to do it before cb4388783cecc.
* src/smooth/ftgrays.c (gray_TWorker): Add `spans' and `num_spans'.
(gray_hline, gray_sweep): Implement the span buffering.
(gray_raster_render): Use negative `num_spans' to avoid the direct
mode.
2019-06-12 Alexei Podtelezhnikov <apodtele@gmail.com>
* include/freetype/ftmodapi.h (FT_DebugHook_Func): Return error.
Fix a warning by adding a return value as in `TT_RunIns',
which should not be a compatibility issue.
2019-06-11 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/truetype/ttobjs.c (tt_check_trickyness_family): Add `const'.
2019-06-11 Moazin Khatti <moazinkhatri@gmail.com>
[gzip] Add support for `gzip' encoded header.
* src/gzip/ftgzip.c (FT_Gzip_Uncompress): Modify the the call to
`inflateInit2' to enable support for `gzip' encoded headers.
2019-06-10 Alexei Podtelezhnikov <apodtele@gmail.com>
[type1,type42] Use `const' for string literals.
* include/freetype/internal/psaux.h (PS_Table_FuncsRec): Updated.
* include/freetype/internal/t1types.h (T1_EncodingRec): Updated.
* src/psaux/psobjs.[ch] (ps_table_add): Updated.
* src/type1/t1load.c (T1_Open_Face, parse_encoding): Updated.
* src/type42/t42objs.c (T42_Open_Face): Updated.
* src/type42/t42parse.c (t42_parse_encoding): Updated.
* src/cff/cffobjs.c (cff_face_init): Minor.
2019-06-10 Alexei Podtelezhnikov <apodtele@gmail.com>
[bdf,pcf] Use `const' for string literals.
* src/bdf/bdf.h (bdf_property_t): Updated `name'.
* src/bdf/bdflib.c (_bdf_list_split,bdf_create_property,
_bdf_add_property,_bdf_ato*): Updated.
* src/bdf/bdfdrivr.c (bdf_interpret_style): Updated.
* src/pcf/pcfread.c (pcf_intrpret_style): Ditto.
2019-06-07 Philip Race <philip.race@oracle.com>
* src/base/ftinit.c (FT_Set_Default_Properties): Fix crash.
Terminate loop at end of environment.
2019-05-31 Alexei Podtelezhnikov <apodtele@gmail.com>
Solidify VC2005 builds.
* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Explicitly
declare `_BitScanReverse' intrinsic.
* builds/windows/visualc/freetype.vcproj [Debug]: Disable intrinsics.
2019-05-30 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[sfnt] Separate WOFF sources and headers.
Move WOFF sources and headers to separate files.
* include/freetype/internal/wofftypes.h, src/sfnt/sfwoff.c,
src/sfnt/sfwoff.h: New files.
* include/freetype/internal/fttrace.h: Register `sfwoff.c'.
* include/freetype/internal/internal.h: Define
FT_INTERNAL_WOFF_TYPES_H.
* include/freetype/internal/sfnt.h: Include FT_INTERNAL_WOFF_TYPES_H.
* include/freetype/internal/tttypes.h: Move out WOFF structures.
* src/sfnt/rules.mk: Add `sfwoff.c'.
* src/sfnt/sfnt.c: Include `sfwoff.c'.
* src/sfnt/sfobjs.c: Include `sfwoff.h', move out WOFF sources.
2019-05-30 Werner Lemberg <wl@gnu.org>
[base] Fix `make multi'.
Reported by Nikhil.
* src/base/fterrors.c: Include FT_INTERNAL_DEBUG_H.
2019-05-29 Ben Wagner <bungeman@google.com>
[truetype] Fix copy-and-paste error (#56409).
* src/truetype/ttgload.c (load_truetype_glyph): Use correct indices
into `unrounded' array for phantom points.
2019-05-29 Werner Lemberg <wl@gnu.org>
[truetype] Fix 32bit builds (#56404).
Patch suggested by Ben Wagner <bungeman@google.com>.
* src/truetype/ttgxvar.c (FT_fixedToInt, FT_fixedToFdot6): Remove
harmful cast to unsigned type.
2019-05-26 Ben Wagner <bungeman@google.com>
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Improve accuracy.
2019-05-23 Werner Lemberg <wl@gnu.org>
[truetype] Draw glyphs without deltas in variation font (#56374).
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Always fill
`unrounded' array.
2019-05-21 Werner Lemberg <wl@gnu.org>
* src/truetype/ttinterp.c (opcode_name): Improve mnemonics.
2019-05-16 Werner Lemberg <wl@gnu.org>
[truetype] Actually scale varied CVT values.
Up to now, only the unscaled CVT values were varied; in other words,
the `CVAR' data was never used for bytecode hinting.
* src/truetype/ttgxvar.c (tt_cvt_ready_iterator): New auxiliary
function.
(tt_face_vary_cvt): Use it to trigger rescaling of CVT values.
2019-05-16 Werner Lemberg <wl@gnu.org>
[truetype] Use 26.6 format for storing unscaled CVT values.
If `CVAR' data is applied to variation fonts, fractional values are
possible.
* include/freetype/internal/tttypes.h (TT_FaceRec): Change type of
`cvt' from `FT_Short' to `FT_Int32'.
* src/truetype/ttgxvar.c (FT_fdot6ToFixed): New macro.
(tt_face_vary_cvt): Use it to update code to 26.6 format.
* src/truetype/ttobjs.c (tt_size_run_prep): Update code to 26.6
format.
* src/truetype/ttpload.c (tt_face_load_cvt): Stora data in 26.6
format.
2019-05-16 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (load_truetype_glyph): Init `unrounded'.
This fixes linear advance width values for spacing glyphs. Bug
introduced 2019-05-09.
2019-05-16 Werner Lemberg <wl@gnu.org>
[truetype] Avoid code duplication.
* src/truetype/ttobjs.c (tt_size_run_prep): Scale CVT values in this
function.
(tt_size_ready_bytecode): Updated.
* src/truetype/ttgload.c (tt_loader_init): Updated.
2019-05-13 Jouk Jansen <joukj@hrem.nano.tudelft.nl>
* vms_make.com: Updated. Handle `bzip2' directory, too.
2019-05-13 Werner Lemberg <wl@gnu.org>
* src/psaux/psfont.c (cf2_font_setup): Fix compiler warning.
2019-05-12 Werner Lemberg <wl@gnu.org>
[truetype] Doh. Fix last commit to make it work.
Very embarassing :-)
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14701
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14705
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14710
* src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): Move up and add
argument; update all callers.
(TT_Process_Simple_Glyph): Use it. The `unrounded' array is active
for variation fonts only, thus also enclose related code with
`#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT ... #endif' where
necessary.
Revert commit a113e5d from 2019-05-09, and don't use `extra_points2'
but allocate a temporary array.
Speed up the scaling of the `unrounded' array.
* src/truetype/ttgxvar.c (FT_fixedToInt, FT_FixedToFdot6): Fix type
conversions and rounding. The unsigned type must have more or equal
bits to the signed type.
2019-05-09 Werner Lemberg <wl@gnu.org>
[truetype] Increase precision of font variation (#54371).
This patch makes FreeType use font units in 26.6 format internally
instead of integers.
* src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro.
(TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font
coordinates.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use
`extra_points2' array to temporarily hold unrounded point
coordinates; use them to compute scaled coordinates and linear
advance width and height.
(load_truetype_code): Adjust similarly.
2019-05-09 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Minor.
2019-05-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Faster fractions.
* src/smooth/ftgrays.c (SUBPIXELS): Replace with...
(FRACT): A fractional coordinate macro to use in...
(gray_render_line, gray_render_scanline): ... here.
2019-05-07 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/raster/ftraster.c (Draw_Sweep): Unbreak.
2019-05-05 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/raster/ftraster.c: Clean-ups.
2019-05-05 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgxvar.c: More use of `FT_fdot14ToFixed'.
2019-05-04 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/smooth/ftgrays.c (gray_render_line): Small shortcut.
2019-05-04 Werner Lemberg <wl@gnu.org>
Various clang 8.0 static analyzer fixes.
Reported by Sender Ghost <lightside@gmx.com>.
* src/autofit/afcjk.c (af_cjk_hints_compute_edges): Catch a corner
case where `edge->first' could be NULL.
* src/pfr/pfrobjs.c (pfr_slot_load): Remove unnecessary test of
`size'.
* src/raster/ftraster.c (Draw_Sweep): Catch a corner case where
`draw_right' might be NULL.
* src/sfnt/ttmtx.c (tt_face_get_metrics): Fix limit test for
`aadvance'.
Ensure `abearing' always hold a meaningful result.
* src/truetype/ttgload.c (load_truetype_glyph): Ensure `subglyph' is
not NULL before accessing it.
* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Remove unnecessary
test of `namedstyle'.
* src/type42/t42parse.c (t42_parser_done): Ensure
`parser->root.funcs.done' is not NULL before accessing it.
2019-05-03 Alexei Podtelezhnikov <apodtele@gmail.com>
Miscellaneous macro updates.
* src/base/ftoutln.c (SCALED): Updated.
* src/smooth/ftgrays.c (SCALED): Ditto.
(FLOOR, ROUND, CEILING): Removed.
* src/psaux/psfixed.h (cf2_fracToFixed): Updated.
2019-05-02 Alexei Podtelezhnikov <apodtele@gmail.com>
Tweak LCD filtering.
* src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy):
Choose direction from bitmap's pixel_mode.
* include/freetype/internal/ftobjs.c (FT_Bitmap_LcdFilterFunc):
Updated.
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated.
2019-05-02 Werner Lemberg <wl@gnu.org>
* vms_make.com: Updated (#56253).
Remove no longer existing directories (`autohint', `otlayout').
Update used base extensions.
Activate `autofit' module.
Add `gxvalid' module.
Update copyright notices.
2019-04-29 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Simplify cubic Bézier flattening.
The previous implementation is correct but it is too complex.
The revised algorithm is based on the fact that each split moves
the control points closer to the trisection points on the chord.
The corresponding distances are good surrogates for the curve
deviation from the straight line.
This cubic flattening algorithm is somewhat similar to the conic
algorithm based the distance from the control point to the middle of
the chord. The cubic distances, however, decrease less predictably
but are easy enough to calculate on each step.
The new algorithm produces slightly larger number of splits, which is
compensated by its simplicity. The overall rendering performance is
improved by 1-2%. The larger number of splits does not necessarily
result in higher quality, which stays comparable.
* src/smooth/ftgrays.c (gray_render_cubic): Replace the split
condition.
2019-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Bithacks and cosmetics.
* src/smooth/ftgrays.c (gray_record_cell, gray_set_cell, gray_hline,
gray_render_conic, gray_convert_glyph_inner): Updated.
2019-04-25 Alexei Podtelezhnikov <apodtele@gmail.com>
Optimize Bézier bisections.
This change makes bisections faster by 20-30%. When inlined into
`gray_render_cubic', this makes the function faster by 10% and is
noticeable in the overall rendering performance.
* src/raster/ftraster.c (Split_Conic, Split_Cubic): Use shifts and
refactor.
* src/smooth/ftgrays.c (gray_split_conic, gray_split_cubic): Ditto.
* src/base/ftstroke.c (ft_conic_split, ft_cubic_split): Ditto.
* src/base/ftbbox.c (cubic_peak): Use shifts.
2019-04-23 Werner Lemberg <wl@gnu.org>
* src/sfnt/ttcmap.c (tt_cmap12_next): Remove dead code.
Found by clang 8.0's static analyzer and reported by Sender Ghost
<lightside@gmx.com>.
2019-04-23 Werner Lemberg <wl@gnu.org>
[base] Fix thinko in previous commit.
* src/base/ftbitmap.c (FT_Bitmap_Blend): Check final width, not
target pitch.
Problem reported by Sender Ghost <lightside@gmx.com>.
2019-04-22 Werner Lemberg <wl@gnu.org>
* src/base/ftbitmap.c (FT_Bitmap_Blend): Check target pitch.
Problem reported by Sender Ghost <lightside@gmx.com>.
2019-04-22 Werner Lemberg <wl@gnu.org>
Fix return value of `FT_Set_Named_Instance' (#56186).
* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Correctly handle
internal return value -1 of `TT_Set_Var_Design'.
2019-04-18 Werner Lemberg <wl@gnu.org>
[pcf] Fix handling of undefined glyph (#56067).
This commit fixes the changes from 2018-07-21, which broke charmap
iteration. We now add the default character as a new glyph with
index 0, thus increasing the number of glyphs by one (as before).
* src/pcf/pcfread.c (pcf_get_metrics): Adjust to new artificial
glyph with index 0.
Limit number of elements to 65534.
(pcf_get_bitmaps): Ditto.
Unify two loops into one; this avoids allocation of an intermediate
array.
(pcf_get_encodings): Don't flip indices but copy glyph metrics of
default character to index 0.
Also handle invalid default character.
* docs/CHANGES: Updated.
2019-04-15 Minmin Gong <gongminmin@msn.com>
* CMakeLists.txt: Avoid rewriting of unchanged configuration files.
Reported as
https://savannah.nongnu.org/patch/index.php?9755
2019-04-15 JDG <JonathanG@iQmetrix.com>
* src/tools/apinames.c (main): Fix error message.
Reported as
https://savannah.nongnu.org/patch/?9796
2019-04-11 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Fix segfault in direct mode (#56092).
* src/base/ftoutln.c (FT_Outline_Render): Set missing clip_box for
direct mode.
* src/smooth/ftgrays.c (gray_raster_render): Use it.
2019-04-06 Werner Lemberg <wl@gnu.org>
* src/sfnt/ttcmap.c (tt_get_glyph_name): Pacify compiler (#56061).
This is for Visual Studio 2019 on ARM.
2019-04-06 Werner Lemberg <wl@gnu.org>
For distribution, replace `.tar.bz2' with `.tar.xz' bundles.
* builds/toplevel.mk (build): Do it.
* README, docs/CHANGES, docs/release: Updated.
2019-04-06 Antony Lee <anntzer.lee@gmail.com>
Make `glyph_name' parameter to `FT_Get_Name_Index' a `const'.
* include/freetype/freetype.h (FT_Get_Name_Index),
include/freetype/internal/ftobjs.h (FT_Face_GetGlyphNameIndexFunc),
include/freetype/internal/services/svgldict.h
(FT_GlyphDict_NameIndexFunc), src/base/ftobjs.c (FT_Get_Name_Index),
src/cff/cffdrivr.c (cff_get_name_index), src/sfnt/sfdriver.c
(sfnt_get_name_index), src/type1/t1driver.c (t1_get_name_index),
src/type42/t42drivr.c (t42_get_name_index): Add `const' to second
argument.
2019-03-31 Armin Hasitzka <prince.cherusker@gmail.com>
[cff] Fix boundary checks.
642bc7590c701c8cd35a9f60fa899cfa518b17ff introduced dynamically
allocated memory when parsing CFF files with the "old" engine. Bounds
checks have never been updated, however, leading to pointless
comparisons of pointers in some cases. This commit presents a
solution for bounds checks in the CFF module with an extended logic
for the "old" engine while staying as concise as possible for the
"new" one.
* src/cff/cffparse.h: Introduce the struct `CFF_T2_StringRec' and
the additional field `t2_strings' within `CFF_ParserRec'.
* src/cff/cffparse.c (cff_parser_within_limits): Move all boundary
checks into this new function and update the rest of `cffparse.c' to
use it.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12137
2019-03-20 Werner Lemberg <wl@gnu.org>
[autofit] Fix Mongolian blue zone characters.
* src/autofit/afblue.dat: Use U+200D (ZERO-WIDTH JOINER) characters
to get medial forms for some Mongolian characters.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2019-03-19 Werner Lemberg <wl@gnu.org>
[autofit] Add support for Mongolian script.
As a de-facto standard, layouts using this script are constructed
horizontally line by line, then the lines are rotated clockwise for
vertical display.
* src/autofit/afblue.dat: Add blue zone data for Mongolian.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Mongolian standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Mongolian
data.
2019-03-15 Werner Lemberg <wl@gnu.org>
* Version 2.10.0 released.
==========================
Tag sources with `VER-2-10-0'.
* docs/VERSION.TXT: Add entry for version 2.10.0.
* docs/CHANGES: Updated.
* README, Jamfile (RefDoc), src/base/ftver.rc,
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/2.9.1/2.10.0/, s/291/2100/.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 10.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.raw (version_info): Set to 23:0:17.
* CMakeLists.txt (VERSION_MINOR): Set to 10.
(VERSION_PATCH): Set to 0.
* builds/toplevel.mk (version, winversion): Since the minor version
number has two digits now, never omit the patch number. We would
get ambiguous zip file names otherwise.
(dist): Remove remnants of `docmaker' tool.
(do-dist): Remove unused intermediate files.
* src/cff/cffparse.c (destrict_c2s_item): Guard function with
CFF_CONFIG_OPTION_OLD_ENGINE macro.
2019-03-07 Andrei Alexeyev <0x416b617269@gmail.com>
Werner Lemberg <wl@gnu.org>
Fix invalid function pointer casts.
This change should allow Freetype to work on WASM/Emscripten without
needing `-s EMULATE_FUNCTION_POINTER_CASTS=1'.
* src/autofit/afdummy.c (af_dummy_hints_apply): Fix signature.
* src/cid/cidload.c (cid_parse_font_matrix, parse_fd_array,
parse_expansion_factor, parse_font_name): Return `void', not
`FT_Error'.
* include/freetype/internal/ftobjs.h (FT_CMap_CharVarIsDefaultFunc):
Fix signature.
2019-03-05 Werner Lemberg <wl@gnu.org>
[base] Handle numeric overflow (#55827).
* src/base/ftglyph.c (FT_Glyph_Get_CBox): Use `FT_PIX_CEIL_LONG'.
2019-03-05 Sebastian Rasmussen <sebras@gmail.com>
[psaux] Fix use of uninitialized memory (#55832).
* src/psaux/psintrp.c (cf2_interpT2CharString): The call to
`cf2_arrstack_setCount' may fail because the allocator ran out of
memory. When this happens the stack is still written to before the
error condition is checked. This means that FreeType writes outside
of allocated memory. This commit moves the error check prior to the
stack assignment, hence the function now properly returns with an
error condition.
2019-02-23 Werner Lemberg <wl@gnu.org>
* src/base/ftbitmap.c (FT_Bitmap_Blend): No fractional offsets.
The function only provided a framework without an actual
implementation, which this commit removes.
2019-02-23 Werner Lemberg <wl@gnu.org>
* src/tools/update-copyright-year: Insert `(C)'.
2019-02-21 Armin Hasitzka <prince.cherusker@gmail.com>
[truetype] Mask numeric overflows.
* src/truetype/ttinterp.c (Move_CVT, Move_CVT_Stretched, Ins_MIRP):
Mask numeric overflows.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11681
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11734
2019-02-21 Armin Hasitzka <prince.cherusker@gmail.com>
[psaux] Mask numeric overflow.
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Mask numeric
overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13041
2019-02-16 Wink Saville <wink@saville.com>
* src/autofit/afwarp.h (af_warper_compute): Fix declaration.
2019-02-02 Nikolaus Waxweiler <madigens@gmail.com>
[truetype] Apply MVAR hasc, hdsc and hlgp metrics to current FT_Face metrics.
Instead of setting typo or win metrics as the new `FT_Face' metrics
indiscriminately, apply only typo deltas to the currently active
`FT_Face' metrics. This prevents line height differences when the
default outlines were used as the regular face and instances for
everything else, for example.
* src/truetype/ttgxvar.c (tt_apply_mvar): Implement.
2019-02-02 Nikolaus Waxweiler <madigens@gmail.com>
[sfnt] Use typo metrics if OS/2 fsSelection USE_TYPO_METRICS bit is set.
If the `OS/2' table exists and `fsSelection' bit 7
(USE_TYPO_METRICS) is set, use the `sTypo*' set of values to compute
the `FT_Face's ascender, descender, and height. Otherwise, fall
back to old behavior.
* src/sfnt/sfobjs.c (sfnt_load_face): Implement.
2019-01-18 John Tytgat <John.Tytgat@esko.com>
[sfnt] Handle TT fonts having two PostScript font names (#55471).
* src/sfnt/sfdriver.c (sfnt_get_name_id): Prefer English over any
other language found for PostScript font names.
2019-01-08 Chris Liddell <chris.liddell@artifex.com>
[psaux] Fix closepath (#55414).
All of the Type 1 path building is done with code common to the
revised CFF engine, with the exception of closepath, which was still
calling ps_builder_close_contour(), thus previously cached segments
were not always written to the path, and glyph corruption, or even
invalid outlines were possible.
* src/psauc/psinterp.c (cf2_interpT2CharString) <cf2_cmdCLOSEPATH>:
Switch to calling `cf2_glyphpath_closeOpenPath'.
2018-12-29 Werner Lemberg <wl@gnu.org>
* src/autofit/aflatin2.c: Some fixes from `aflatin.c' (#55310).
2018-12-25 Werner Lemberg <wl@gnu.org>
* src/psaux/cffdecode.c (cff_operaor_seac): Fix numeric overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11915
2018-12-12 Werner Lemberg <wl@gnu.org>
[gxvalid] Fix compiler warnings.
* src/gxvalid/gxvjust.c (gxv_just_check_max_gid),
src/gxvalid/gxvmort.c (gxv_mort_coverage_validate): Use `FT_UNUSED'.
2018-12-11 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (TT_Hint_Glyph): Remove useless test.
`control_len' only gets its value from `n_ins' (and vice versa),
which is always read as `unsigned short' and thus can't be larger
than 0xFFFF.
2018-12-04 Werner Lemberg <wl@gnu.org>
[bdf] Ignore data after `ENDFONT'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10798
* src/bdf/bdflib.c (_bdf_parse_end): New function.
(_bdf_parse_glyphs): Switch to `_bdf_parse_end' after `ENDFONT' has
been encountered.
2018-12-02 Alexei Podtelezhnikov <apodtele@gmail.com>
* builds/windows/visualc/freetype.dsp: Dust off.
2018-11-27 Alexei Podtelezhnikov <apodtele@gmail.com>
* builds/windows/vc2010/freetype.vcxproj: Simplify.
2018-11-27 Chris Liddell <chris.liddell@artifex.com>
[type1,cff] Add FT_{Set,Get}_MM_WeightVector API calls.
For multiple master fonts, common usage (in Postscript) is to modify
the WeightVector of an existing font instance, this addition
supports that use.
* include/freetype/ftmm.h, src/base/ftmm.c (FT_Set_MM_WeightVector,
FT_Get_MM_WeightVector): New API functions.
* include/freetype/internalservices/svmm.h
(FT_Set_MM_WeightVector_Func, FT_Get_MM_WeightVector_Func): New
function types.
(MultiMasters): Add `set_mm_weightvector' and `get_mm_weightvector'
members.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.
* src/cffcffdrivr.c (cff_set_mm_weightvector,
cff_get_mm_weightvector): New functions.
(cff_service_multi_masters): Register them.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.
This driver doesn't use the new interface.
* src/type1/t1load.c (T1_Set_MM_WeightVector,
T1_Get_MM_WeightVector): New functions.
* src/type1/t1driver.c (t1_service_multi_masters): Register them.
* src/type1/t1load.h: Updated.
2018-11-27 Ben Wagner <bungeman@google.com>
[cff] Fix compiler warning (#55105).
* src/cff/cffparse.c (cff_parser_run): Guard label only used if
CFF_CONFIG_OPTION_OLD_ENGINE is active.
2018-11-27 Ben Wagner <bungeman@google.com>
[truetype] Fix numeric overflow (#55103).
* src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.
2018-11-25 Alexei Podtelezhnikov <apodtele@gmail.com>
[builds] Belated DLL support with vc2002-vc2008.
The solution and project files should be automatically upgraded for
the approriate Visual C++ version.
* builds/windows/visualc/freetype.{sln,vcproj}: Major upgrades.
* builds/windows/visualc/index.html: Document the change.
* builds/windows/vc2005, builds/windows/vc2008: Removed as redundant.
2018-11-22 Armin Hasitzka <prince.cherusker@gmail.com>
* src/cff/cffparse.c: Please the compiler.
2018-11-22 Armin Hasitzka <prince.cherusker@gmail.com>
[cff] Fix memory overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9869
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10869
* src/cff/cffparse.c (destruct_t2s_item, cff_parser_run): Store
evaluated T2 charstrings in separately allocated memory.
2018-11-18 Alexei Podtelezhnikov <apodtele@gmail.com>
* builds/windows/{visualc,vc2005,vc2008}/freetype.vcproj: Fix it.
2018-11-10 Alexei Podtelezhnikov <apodtele@gmail.com>
[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 <yangx92@hotmail.com>
[psaux] Add safety guard (#54985).
* src/psaux/psobjs.c (cff_builder_close_contour): Do it.
2018-11-08 Alexei Podtelezhnikov <apodtele@gmail.com>
* builds/unix/configure.raw: Require `windows.h' for windres.
2018-11-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[ftstroke] Fix unpredictable failures (#54986).
* src/base/ftstroke.c (ft_sroke_border_lineto): Fix lineto check.
2018-11-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[ftstroke] Fix unpredictable failures (#54976).
* src/base/ftstroke.c (ft_sroke_border_close): Set the start tags.
2018-11-07 Ben Wagner <bungeman@google.com>
[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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
* src/truetype/ttgxvar.c: Use enum definitions.
2018-11-03 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Adjust condition.
2018-11-03 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Tracing tweaks.
2018-11-03 Alexei Podtelezhnikov <apodtele@gmail.com>
Revert due to specs: [truetype] Speed up variation IUP.
2018-11-02 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/truetype/ttgxvar.c (ft_var_get_item_delta): Fixed logic.
Reported and tested by Behdad.
2018-11-02 Shailesh Mistry <shailesh.mistry@hotmail.co.uk>
[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 <apodtele@gmail.com>
[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 <apodtele@gmail.com>
* src/type1/t1load.c (t1_set_mm_blend): Optimized.
2018-10-31 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/truetype/ttgxvar.c (ft_var_get_item_delta): Optimized.
2018-10-29 Werner Lemberg <wl@gnu.org>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
[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 <apodtele@gmail.com>
Revert: Align FreeType with standard C memory management.
2018-10-27 Werner Lemberg <wl@gnu.org>
[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 <wl@gnu.org>
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 <markand@malikania.fr>
* CMakeLists.txt: Specify `RUNTIME DESTINATION'.
This is needed for DLL builds.
2018-10-07 Werner Lemberg <wl@gnu.org>
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 <wl@gnu.org>
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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
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 <wl@gnu.org>
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 <tony.smith@macro4.com>.
* 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 <apodtele@gmail.com>
[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 <apodtele@gmail.com>
* 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 <apodtele@gmail.com>
* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Further tweak.
2018-09-21 Ben Wagner <bungeman@google.com>
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 <wl@gnu.org>
[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 <apodtele@gmail.com>
* 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 <apodtele@gmail.com>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
[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 <apodtele@gmail.com>
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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <wl@gnu.org>
* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Fix last commit.
2018-09-13 Werner Lemberg <wl@gnu.org>
* 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 <John.Tytgat@esko.com>
[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 <wl@gnu.org>
[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 <wl@gnu.org>
* src/truetype/ttgxvar.c (ft_var_load_gvar): Check `glyphoffsets'.
2018-09-10 Armin Hasitzka <prince.cherusker@gmail.com>
* 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 <bungeman@google.com>
* builds/freetype.mk (refdoc-venv): Ensure python version (#54631).
2018-09-07 Werner Lemberg <wl@gnu.org>
[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 <wl@gnu.org>
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 <ramakrishnan.nikhil@gmail.com>
Add documentation guidelines file.
* docs/DOCGUIDE: New file.
2018-09-04 Werner Lemberg <wl@gnu.org>
* devel/ftoption.h: Synchronize with master `ftoption.h'.
2018-09-03 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[docwriter] Don't break code snippets accross lines.
Reported as
https://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 <wl@gnu.org>
*/*: s/PSNames/psnames/.
Only tracing messages are affected.
2018-09-03 Werner Lemberg <wl@gnu.org>
[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 <wl@gnu.org>
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 <apodtele@gmail.com>
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Check glyph format.
2018-08-31 Armin Hasitzka <prince.cherusker@gmail.com>
[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 <wl@gnu.org>
* src/base/ftdebug.c (FT_Throw): Restore missing `FT_UNUSED' calls.
2018-08-31 Werner Lemberg <wl@gnu.org>
* src/base/ftdebug.c (FT_Throw): Reduce chattiness.
2018-08-31 Werner Lemberg <wl@gnu.org>
* src/autofit/afhints.c (af_glyph_hints_reload): Add initialization.
2018-08-30 Alexei Podtelezhnikov <apodtele@gmail.com>
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 <apodtele@gmail.com>
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Correct mono.
2018-08-30 Armin Hasitzka <prince.cherusker@gmail.com>
[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 <prince.cherusker@gmail.com>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
[base] Overflow-resistant bitmap presetting.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Implement it.
2018-08-29 Armin Hasitzka <prince.cherusker@gmail.com>
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 <wl@gnu.org>
[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 <wl@gnu.org>
* src/truetype/ttobjs.c (tt_size_read_bytecode): Trace CVT values.
2018-08-26 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
* 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
https://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00083.html
2018-08-26 Werner Lemberg <wl@gnu.org>
* 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 <wl@gnu.org>
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 <wl@gnu.org>
[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 <wl@gnu.org>
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 <ramakrishnan.nikhil@gmail.com>
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 <wl@gnu.org>
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 <wl@gnu.org>
[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 <wl@gnu.org>
* 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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <yangx92@hotmail.com>
* builds/mac/ftmac.c (parse_fond): Fix buffer overrun.
Reported as bug #54515, duplicate of #43540.
2018-08-16 Werner Lemberg <wl@gnu.org>
* builds/*/ftsystem.c (FT_COMPONENT): Updated also.
2018-08-15 Alexei Podtelezhnikov <apodtele@gmail.com>
[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 <wl@gnu.org>
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 <wl@gnu.org>
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 <apodtele@gmail.com>
[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 <wl@gnu.org>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
[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 <wl@gnu.org>
[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 <apodtele@gmail.com>
[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 <wl@gnu.org>
* 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 <wl@gnu.org>
* 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 <apodtele@gmail.com>
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_compound): Follow specs.
2018-08-10 Ben Wagner <bungeman@google.com>
* src/sfnt/sfobjs.c (sfnt_done_face): Fix memory leak (#54435).
2018-08-10 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Improve tracing.
2018-08-10 Werner Lemberg <wl@gnu.org>
Fix clang warnings.
* src/base/ftdebug.c (ft_trace_level_enabled,
ft_trace_level_disabled): Add `static' keyword.
2018-08-09 Alexei Podtelezhnikov <apodtele@gmail.com>
[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 <apodtele@gmail.com>
[pcf] Revert massive unsigning.
2018-08-08 Werner Lemberg <wl@gnu.org>
[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 <wl@gnu.org>
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 <wl@gnu.org>
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 <apodtele@gmail.com>
[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 <apodtele@gmail.com>
[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 <apodtele@gmail.com>
* src/pcf/pcfread.c (pcf_get_bitmaps): Unsign `offsets' and
`bitmapSizes'.
2018-08-06 Werner Lemberg <wl@gnu.org>
* devel/ftoption.h: Synchronize with main `ftoption.h'.
2018-08-06 Alexei Podtelezhnikov <apodtele@gmail.com>
[pcf] Use unsigned types.
* src/pcf/pcf.h (PCF_Encoding): Use unsigned `enc'.
* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Ditto.
* src/pcf/pcfread.c (pcf_get_encodings): Use unsigned types.
2018-08-05 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (compute_glyph_metrics): Fix overflow.
Reported as
https://bugs.chromium.org/p/chromium/issues/detail?id=777151
2018-08-04 Werner Lemberg <wl@gnu.org>
* src/truetype/ttinterp.c (opcode_name): Fix typos.
2018-08-04 Werner Lemberg <wl@gnu.org>
Fix clang warnings.
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Fix type of
`orientation'.
* src/gxvalid/gxvcommn.c (gx_lookup_value_read): Fix signature.
* src/pcf/pcfread.c (pcf_get_encodings): Fix type of some variables.
Add cast.
* src/type1/t1load.c (parse_weight_vector): Fix cast.
2018-07-31 Werner Lemberg <wl@gnu.org>
* src/cid/cidtoken.h: Handle `XUID' keyword.
2018-07-31 Werner Lemberg <wl@gnu.org>
[cid] Trace PostScript dictionaries.
* src/cid/cidload.c: Include FT_INTERNAL_POSTSCRIPT_AUX_H.
(cid_load_keyword, cid_parse_font_matrix, parse_fd_array,
parse_expansion_factor, cid_parse_dict): Add tracing calls.
(parse_font_name): New function to trace `/FontName' keywords in
/FDArray dict.
(cid_field_records): Register `parse_font_name'.
2018-07-30 Werner Lemberg <wl@gnu.org>
[cff] Fix typo.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9409
* src/cff/cffdrivr.c (cff_get_cid_from_glyph_index): Fix boundary
check.
2018-07-29 Werner Lemberg <wl@gnu.org>
* src/pcf/pcfread.c (pcf_get_encodings): Another thinko.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9608
2018-07-28 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Fix Harmony memory management.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9501
* src/smooth/ftgrays.c (ft_smooth_render_generic): Restore buffer
after each rendering in case of failure.
2018-07-28 Werner Lemberg <wl@gnu.org>
[type1] Avoid segfaults with `FT_Get_PS_Font_Value'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9610
* src/type1/t1driver.c (t1_ps_get_font_value): Protect against NULL.
2018-07-27 Werner Lemberg <wl@gnu.org>
[truetype] Make `TT_Set_MM_Blend' idempotent (#54388).
* src/truetype/ttgxvar.c (tt_set_mm_blend): Correctly set
`face->doblend' if the current call to the function yields the same
blend coordinates as the previous call.
2018-07-27 Werner Lemberg <wl@gnu.org>
[psaux, type1]: More tracing improvements.
* src/psaux/psintrp.c (cf2_interpT2CharString): Trace skipped
outline commands.
* src/psaux/t1decode.c (t1_decoder_parse_charstring): Fix
missing case.
(t1_decoder_parse_metrics): Make tracing output more compact.
* src/type1/t1gload.c (T1_Compute_Max_Advance): Be less verbose.
(T1_Get_Advances): Add tracing.
2018-07-25 Werner Lemberg <wl@gnu.org>
[psaux, type1] Trace PostScript dictionaries and other things.
The tracing of /Encoding, /Subrs, and /Charstrings is rudimentary
right now.
* src/psaux/psobjs.c (ps_parser_load_field,
ps_parser_load_field_table): Add tracing calls.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Make tracing
output more compact.
* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances): Add
tracing messages.
* src/type1/t1load.c (parse_blend_axis_types,
parse_blend_design_positions, parse_blend_design_map,
parse_weight_vector, t1_load_keyword, t1_parse_font_matrix,
parse_encoding, parse_subrs, parse_charstrings, T1_Open_Face): Add
tracing calls.
* src/type1/t1objs.c (T1_Face_Init): Add tracing call.
* src/sfnt/sfobjs.c (sfnt_init_face): Make tracing message more
verbose.
2018-07-25 Werner Lemberg <wl@gnu.org>
Fix minor ASAN run-time warnings.
* src/base/ftutil.c (ft_mem_alloc, ft_mem_realloc): Only call
`FT_MEM_ZERO' if we actually have a buffer.
(ft_mem_dup): Only call `ft_memcpy' if we actually have a buffer.
2018-07-24 Alexei Podtelezhnikov <apodtele@gmail.com>
[build] Fortify dllexport/dllimport attributes (#53969,#54330).
We no longer use predefined _DLL, which can be defined for static
builds too with /MD. We use DLL_EXPORT and DLL_IMPORT instead,
following libtool convention.
* CMakeLists.txt [WIN32], builds/windows/vc2010/freetype.vcxproj:
Define DLL_EXPORT manually.
* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h, builds/windows/vc2010/index.html,
src/base/ftver.rc: /_DLL/d, s/FT2_DLLIMPORT/DLL_IMPORT/.
2018-07-24 Werner Lemberg <wl@gnu.org>
[type1] Check relationship between number of axes and designs.
For Multiple Masters fonts we don't support intermediate designs;
this implies that
number_of_designs == 2 ^^ number_of_axes
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9557
* src/type1/t1load.c (T1_Open_Face): Ensure above constraint.
(T1_Get_MM_Var): Remove now redundant test.
2018-07-24 Hin-Tak Leung <htl10@users.sourceforge.net>
[truetype] Match ttdebug's naming of instruction mnemonics.
* src/truetype/ttinterp.c: The form used in ttdebug,
"MDRP[G,B,W,?]", etc., is slightly more readable than
"MDRP[00,01,02,03]".
2018-07-24 Werner Lemberg <wl@gnu.org>
* src/pcf/pcfread.c (pcf_get_encodings): Thinko.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9561
2018-07-22 Werner Lemberg <wl@gnu.org>
* src/pcf/pcfread.c (pcf_get_encodings): Check index of defaultChar.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9527
2018-07-22 Werner Lemberg <wl@gnu.org>
* src/pcf/pcfread.c (pcf_load_font): Fix number of glyphs.
This is an oversight of the module change 2018-07-21.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9524
2018-07-22 Werner Lemberg <wl@gnu.org>
[cid] Sanitize `BlueShift' and `BlueFuzz'.
This code is taken from the type1 module.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9510
* src/cid/cidload.c (parse_fd_array): Set some private dict default
values.
(cid_face_open): Do the sanitizing.
Fix some tracing messages.
2018-07-21 Werner Lemberg <wl@gnu.org>
[pcf] Fix handling of the undefined glyph.
This change makes the driver use the `defaultChar' property of PCF
files.
* src/pcf/pcf.h (PCF_FaceRec): Change type of `defaultChar' to
unsigned.
* src/pcf/pcfread.c (pcf_get_encodings): Read `defaultChar' as
unsigned.
Validate `defaultChar'.
If `defaultChar' doesn't point to glyph index zero, swap glyphs with
index zero and index `defaultChar' and adjust the encodings
accordingly.
* src/pcf/pcfdrivr.c (pcf_cmap_char_index, pcf_cmap_char_next,
PCF_Glyph_Load): Undo change from 2002-06-16 which always enforced
the first character in the font to be the default character.
2018-07-20 Armin Hasitzka <prince.cherusker@gmail.com>
Move the legacy fuzz target to the `freetype-testing' repository.
It can now be found at
https://github.com/freetype/freetype2-testing/tree/master/fuzzing/src/legacy
* src/tools/ftfuzzer: Remove this folder and its contents from the
repository.
2018-07-20 Werner Lemberg <wl@gnu.org>
[cff] Avoid left-shift of negative numbers (#54322).
* src/cff/cffgload.c (cff_slot_load): Use multiplication.
2018-07-17 Werner Lemberg <wl@gnu.org>
Allow FT_ENCODING_NONE for `FT_Select_Charmap'.
This is a valid encoding tag for BDF, PCF, and Windows FNT, and
there is no reason to disallow it for these formats.
* src/base/ftobjs.c (FT_Select_Charmap): Implement it.
2018-07-17 Werner Lemberg <wl@gnu.org>
* src/pcf/pcfread.c (pcf_get_encodings): Trace `defaultChar'.
2018-07-16 Armin Hasitzka <prince.cherusker@gmail.com>
* include/freetype/internal/ftcalc.h: Add macros for handling
harmless over-/underflowing `FT_Int' values.
* src/sfnt/sfdriver.c (fixed2float): Fix negation of
`(int)(-2147483648)'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9423
2018-07-16 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgxvar.c (tt_set_mm_blend): Fix off-by-one error.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9412
2018-07-12 Werner Lemberg <wl@gnu.org>
* src/base/ftoutln.c (FT_Outline_Get_Orientation): Init `cbox'.
Taken from patch #9667, written by Steve Langasek
<vorlon@debian.org>.
This fixes a build failure (most probably a bug in gcc) on ppc64el
when building with -O3.
2018-07-05 Werner Lemberg <wl@gnu.org>
Fix typo (#54238).
* src/base/ftcolor.c (FT_Palette_Set_Foreground_Color)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: Add return value.
2018-07-05 Werner Lemberg <wl@gnu.org>
Adjust table size comparisons (#54242).
* src/sfnt/ttcpal.c (tt_face_load_cpal): Implement it.
2018-07-05 Werner Lemberg <wl@gnu.org>
Fix more 32bit issues (#54208).
* src/cff/cffload.c (cff_blend_build_vector): Convert assertion into
run-time error.
* src/truetype/ttgxvar.c (ft_var_to_normalized): Protect against
numeric overflow.
2018-07-04 Werner Lemberg <wl@gnu.org>
Fix 32bit build warnings (#54239).
* src/base/ftbitmap.c (FT_Bitmap_Blend): Add casts to avoid signed
vs. unsigned comparisons.
* srb/sfnt/ttcolr.c (tt_face_get_colr_layer): Ditto.
2018-07-02 Jeff Carey <Jeff.Carey@monotype.com>
* src/psnames/psmodule.c (ps_unicodes_init): Fix alloc debugging.
2018-07-02 Werner Lemberg <wl@gnu.org>
s/palette_types/palette_flags/.
Suggested by Behdad.
2018-07-02 Werner Lemberg <wl@gnu.org>
Make `FT_Get_Color_Glyph_Layer' return FT_Bool.
* include/freetype/freetype.h, src/base/ftobjs.c
(FT_Get_Color_Glyph_Layer, FT_Render_Glyph_Internal): Updated.
* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func),
src/sfnt/ttcolr.h, src/sfnt/ttcolr.c (tt_face_get_colr_layer):
Updated.
2018-07-01 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Guard SFNT function.
Reported by Behdad.
2018-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/fttrigon.c (FT_Tan): Improve accuracy.
(FT_Vector_Rotate): Simplify.
2018-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/base/ftobjs.c (FT_Set_Charmap): Robustify.
2018-06-25 Werner Lemberg <wl@gnu.org>
[truetype] Fix memory leak.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Add initializers.
Fix typo in `goto' destination.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9071
2018-06-25 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgxvar.c (tt_face_vary_cvt): Add initializers.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9070
2018-06-24 Werner Lemberg <wl@gnu.org>
[truetype] Increase precision while applying VF deltas.
It turned out that we incorrectly round CVT and glyph point deltas
before accumulation, leading to severe positioning errors if there
are many delta values to sum up.
Problem reported by Akiem Helmling <akiem@underware.nl> and analyzed
by Behdad.
* src/truetype/ttgxvar.c (ft_var_readpackeddelta): Return deltas in
16.16 format.
(tt_face_var_cvt): Collect deltas in `cvt_deltas', which is a 16.16
format array, and add the accumulated values to the CVT at the end
of the function.
(TT_Vary_Apply_Glyph_Deltas): Store data in `points_org' and
`points_out' in 16.16 format.
Collect deltas in `point_deltas_x' and `point_deltas_y', which are
16.16 format arrays, and add the accumulated values to the glyph
coordinates at the end of the function.
2018-06-24 Werner Lemberg <wl@gnu.org>
New base function `FT_Matrix_Check' (#54019).
* src/base/ftcalc.c (FT_Matrix_Check): New base function to properly
reject degenerate font matrices.
* include/freetype/internal/ftcalc.h: Updated.
* src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c
(cid_parse_font_matrix), src/type1/t1load.c (t1_parse_font_matrix),
src/type42/t42parse.c (t42_parse_font_matrix): Use
`FT_Matrix_Check'.
2018-06-23 Werner Lemberg <wl@gnu.org>
Fix typo.
Reported by Behdad.
* src/base/ftcolor.c (FT_Palette_Data_Get)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.
2018-06-21 Werner Lemberg <wl@gnu.org>
s/FT_PALETTE_USABLE_WITH_/FT_PALETTE_FOR_/.
* include/freetype/ftcolor.h, include/freetype/internal/sfnt.h,
src/sfnt/ttcolr.c: Do it.
2018-06-19 Werner Lemberg <wl@gnu.org>
[sfnt] Fix CPAL heap buffer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8968
* src/sfnt/ttcpal.c (tt_face_load_cpal): Guard CPAL version 1
offsets.
2018-06-19 Werner Lemberg <wl@gnu.org>
Doh. Don't use CPAL or COLR data if tables are missing.
Reported by Alexei.
* src/sfnt/ttcolr.c (tt_face_get_colr_layer): Return immediately if
`colr' is NULL.
* src/sfnt/ttcpal.c (tt_face_palette_set): Return immediately, if
`cpal' is NULL.
2018-06-17 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Introduce `FT_New_Glyph'.
This function facilitates access to full capabilities of FreeType
rendering engine for custom glyphs. This can be quite useful for
consistent rendering of mathematical and chemical formulas, e.g.
https://bugs.chromium.org/p/chromium/issues/detail?id=757078
* include/freetype/ftglyph.h, src/base/ftglyph.c (FT_New_Glyph): New
function.
2018-06-17 Armin Hasitzka <prince.cherusker@gmail.com>
[bdf] Fix underflow of an unsigned value.
bdflib.c:1562 could be reached with `font->glyphs_used == 0'. That
caused an underflow of the unsigned value which results in undefined
behaviour.
* src/bdf/bdflib.c (_bdf_parse_glyphs): Bail out earlier than before
if the `ENCODING' keyword cannot be found.
2018-06-17 Werner Lemberg <wl@gnu.org>
[base] Add tracing for `FT_Bitmap_Blend'.
* include/freetype/internal/fttrace.h (trace_bitmap): New
enumeration.
* src/base/ftbitmap.c (FT_COMPONENT): Define.
(FT_Bitmap_Blend): Add `FT_TRACE5' calls.
2018-06-17 Werner Lemberg <wl@gnu.org>
s/trace_bitmap/trace_checksum/.
* include/freetype/internal/fttrace.h: s/bitmap/checksum/.
* src/base/ftobjs.c (FT_COMPONENT): s/trace_bitmap/trace_checksum/.
Adjust code.
2018-06-16 Werner Lemberg <wl@gnu.org>
[sfnt] Fix color glyph layer loading.
* src/sfnt/ttcolr.c (Colr): Add `table_size' field.
(tt_face_load_colr): Set it.
(tt_face_get_colr_layer): Check pointer limit for layer entries.
2018-06-16 Werner Lemberg <wl@gnu.org>
[sfnt] Fix color palette loading.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8933
* src/sfnt/ttcpal.c (Cpal): Add `table_size' field.
(tt_face_load_cpal): Set it.
(tt_face_palette_set): Check pointer limit for color entries.
2018-06-16 Werner Lemberg <wl@gnu.org>
* src/base/ftbitmap.c (FT_Bitmap_Blend): Avoid integer overflow.
2018-06-16 Werner Lemberg <wl@gnu.org>
Add `FT_Bitmap_Blend' API.
Still missing: Support for negative bitmap pitch and subpixel offset
of source bitmap.
* include/freetype/ftbitmap.h, src/base/ftbitmap.c
(FT_Bitmap_Blend): New function.
2018-06-14 Werner Lemberg <wl@gnu.org>
Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'.
This avoids any additional allocation of COLR related structures in
a glyph slot.
* include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec,
FT_Get_GlyphLayers): Removed.
* include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed.
(FT_Slot_InternalRec): Remove `color_layers'.
* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func):
Removed.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove
`load_colr_layer'.
* src/base/ftobjs.c (ft_glyph_slot_done): Updated.
(FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'.
(FT_Get_GlyphLayers): Removed.
* src/sfnt/sfdriver.c (sfnt_interface): Updated.
* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed.
* src/sfnt/ttcolr.h: Updated.
* src/truetype/ttgload.c (TT_Load_Glyph): Updated.
2018-06-14 Werner Lemberg <wl@gnu.org>
Provide iterative API to access `COLR' data.
This solution doesn't store any data in an `FT_GlyphSlot' object.
* include/freetype/freetype.h (FT_LayerIterator): New structure.
(FT_Get_Color_Glyph_Layer): New function.
* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func): New
function type.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.
* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Implement it.
* src/sfnt/ttcolr.c (tt_face_get_colr_layer): New function.
* src/sfnt/ttcolr.h: Updated.
* src/sfnt/sfdriver.c (sfnt_interface): Updated.
2018-06-14 Werner Lemberg <wl@gnu.org>
Add glyph index and glyph load flags to glyph slot.
* include/freetype/freetype.h (FT_GlyphSlotRec): Rename unused
`reserved' field to `glyph_index'.
* include/freetype/internal/ftobjs.h (FT_Slot_InternalRec): Add
`load_flags' field.
* src/base/ftobjs.c (FT_Load_Glyph): Set new fields.
2018-06-14 Werner Lemberg <wl@gnu.org>
[sfnt] Move `CPAL' stuff into separate files.
* src/sfnt/sfdriver.c: Include `ttcpal.h'.
* src/sfnt/sfnt.c: Include `ttcpal.c'.
* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: Move CPAL stuff to ...
* src/sfnt/ttcpal.c, src/sfnt/ttcpal.c: ... these new files.
* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC):
Updated.
* include/freetype/internal/fttrace.h: Add support for `colr' and
`cpal'.
Sort entries.
2018-06-13 Werner Lemberg <wl@gnu.org>
[sfnt] Separate `CPAL' and `COLR' table handling.
Later on we want to support the `SVG' table also, which needs `CPAL'
(but not `COLR').
* include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_cpal'
and `free_cpal' fields.
(FT_DEFINE_SFNT_INTERFACE): Updated.
* include/freetype/internal/tttypes.h (TT_FaceRec): Replace
`colr_and_cpal' fields with `cpal' and `colr'.
* src/sfnt/sfdriver.c (sfnt_interface): Updated.
* src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Updated.
* src/sfnt/ttcolr.c (Colr, Cpal): Add `table' field.
(ColrCpal): Removed.
(tt_face_load_colr): Split off CPAL handling into...
(tt_face_load_cpal): ... this new function.
(tt_face_free_colr): Split off CPAL handling into...
(tt_face_free_cpal): ... this new function.
(tt_face_load_colr_layers, tt_face_palette_set): Updated.
* src/sfnt/ttcolr.h: Updated.
* src/truetype/ttgload.c (TT_Load_Glyph): Updated.
2018-06-12 Werner Lemberg <wl@gnu.org>
[sfnt] Fix `sizeof' thinko.
* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_palette_set): Don't
use `sizeof' for computing array limit.
2018-06-12 Werner Lemberg <wl@gnu.org>
Finish CPAL/COLR support (4/4).
* src/sfnt/ttcolr.c (tt_face_find_color): Removed.
(tt_face_colr_blend_layer): Use `face->palette' instead of calling
`tt_face_find_color'.
Use and set text foreground color.
2018-06-12 Werner Lemberg <wl@gnu.org>
Finish CPAL/COLR support (3/4).
* src/base/ftcolor.c: Include FT_INTERNAL_SFNT_H.
(FT_Palette_Select, FT_Palette_Set_Foreground_Color): Implement
functions.
2018-06-12 Werner Lemberg <wl@gnu.org>
Finish CPAL/COLR support (2/4).
* src/sfnt/ttcolr.c (tt_face_palette_set): New function.
(tt_face_load_colr): Allocate `face->palette' and call
`tt_face_palette_set'.
Adjust return error code in case of error.
* src/sfnt/ttcolr.h: Updated.
* include/freetype/internal/sfnt.h (TT_Set_Palette_Func): New
function type.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.
* src/sfnt/sfdriver.c (sfnt_interface), src/sfnt/sfobjs.c
(sfnt_done_face): Updated.
2018-06-12 Werner Lemberg <wl@gnu.org>
Finish CPAL/COLR support (1/4).
* include/freetype/internal/tttypes.h (TT_FaceRec): New fields
`palette_index', `palette', `have_foreground_color' and
`foreground_color'.
2018-06-12 Werner Lemberg <wl@gnu.org>
[sfnt] Minor.
* src/sfnt/ttcolr.c (tt_face_load_colr_layers):
s/palette_index/palette_entry_index/ for consistency.
Adjust return error code in case of error.
2018-06-11 Alexei Podtelezhnikov <apodtele@gmail.com>
[raster] Clean up.
* src/raster/ftraster.c (black_TWorker, SCALED, Set_High_Precision):
Clean up after 5-level gray removal (8dc8635874).
(Vertical_Sweep_Span): Be brief.
2018-06-10 Werner Lemberg <wl@gnu.org>
[sfnt] Fix compiler warnings.
* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_load_colr_layers,
tt_face_colr_blend_layer): Add `NULL' initializers.
2018-06-10 Werner Lemberg <wl@gnu.org>
s/FT_Palette/FT_Palette_Data/, s/palette/palette_data/.
* include/freetype/ftcolor.h, include/freetype/internal/tttypes.h,
src/base/ftcolor.c, src/sfnt/sfobjs.c, src/sfnt/ttcolr.c: Updated.
2018-06-10 Nikolaus Waxweiler <madigens@gmail.com>
CMakeLists: also accept IOS_PLATFORM=SIMULATOR64
This might be needed to build FreeType for the iOS simulator. See
https://savannah.nongnu.org/bugs/index.php?54048. Patch contributed
by Steve Robinson.
* CMakeLists.txt: Accept IOS_PLATFORM=SIMULATOR64
2018-06-10 Werner Lemberg <wl@gnu.org>
Implement `FT_Palette_Get'.
* src/base/ftcolor.c: New file.
* src/base/Jamefile (_sources), src/base/rules.mk (BASE_SRC),
src/base/ftbase.c: Add `ftcolor.c'.
2018-06-10 Werner Lemberg <wl@gnu.org>
* src/sfnt/ttcolr.c (tt_face_load_colr): Improve overflow checks.
2018-06-09 Alexei Podtelezhnikov <apodtele@gmail.com>
[raster] Deal with pitch sign earlier.
* src/raster/ftraster.c (black_TWorker): Remove unused `traceG',
s/bTarget/bOrigin/.
(Render_Glyph): Set `ras.bOrigin' at the bottom-left corner.
(Vertical_Sweep_Init, {Vertical,Horizontal}_Sweep_{Span,Drop}):
Updated accordingly.
2018-06-09 Werner Lemberg <wl@gnu.org>
[sfnt] Read `CPAL' version 1 tables.
* include/freetype/internal.tttypes.h: Include FT_COLOR_H.
(TT_FaceRec): Add `palette' field.
* src/sfnt/ttcolr.c: Include FT_COLOR_H.
(Cpal): Remove all data covered by the new `palette' field in
`TT_FaceRec'.
(tt_face_load_colr): Updated.
Read `CPAL' version 1 data.
(tt_face_load_colr_layers, tt_face_find_color): Updated.
* src/sfnt/sfobjs.c (sfnt_done_face): Free glyph color palette data.
2018-06-07 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] API for Harmony LCD rendering.
This introduces `FT_Library_SetLcdGeometry' for setting up arbitrary
LCD subpixel geometry including non-striped patterns.
* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): New function.
* include/freetype/ftlcdfil.h: Document it.
* include/freetype/freetype.h: Minor.
* include/freetype/ftchapters.h: Minor.
2018-06-06 Werner Lemberg <wl@gnu.org>
ftcolor.h: Redesign API.
While going to implement it I noticed that I need access to most of
the `CPAL' elements; I thus plan to add a `cpal' field to
`TT_FaceRec', which makes most of the previously suggested API
functions obsolete because the fields will be directly accessible.
2018-06-06 Parth Wazurkar <parthwazurkar@gmail.com>
[bdf, pcf] Remove deprecated FT_FACE_FLAG_FAST_GLYPHS flag.
* src/bdf/bdfdrivr.c (BDF_Face_Init): Remove deprecated
FT_FACE_FLAG_FAST_GLYPHS flag.
* src/pcf/pcfread.c (pcf_load_font): Remove deprecated
FT_FACE_FLAG_FAST_GLYPHS flag.
2018-06-06 Werner Lemberg <wl@gnu.org>
[smooth, raster] Limit bitmap size (#54019).
* src/raster/ftraster.c [STANDALONE] (FT_Outline_Get_CBox): Add
function.
[!STANDALONE]: Include FT_OUTLINE_H.
(ft_black_render): Compute CBox and reject glyphs larger than
0xFFFF x 0xFFFF.
* src/smooth/ftgrays.c (gray_raster_render): Reject glyphs larger
than 0xFFFF x 0xFFFF.
2018-06-03 Armin Hasitzka <prince.cherusker@gmail.com>
* src/smooth/ftgrays.c (gray_convert_glyph): Remove unused variables.
2018-06-03 Werner Lemberg <wl@gnu.org>
* src/tools/glnames.py (main): Emit header in `light' comment style.
2018-06-02 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Attempt to mitigate bug #54019.
The robust rendering of estra large glyphs came with unbearable cost.
The old way of bisecting should fail but fail faster.
* src/smooth/ftgrays.c (gray_convert_glyph): Switch back to bisecting
in y-direction.
2018-06-02 Werner Lemberg <wl@gnu.org>
* src/truetype/ttinterp.c (Ins_MIRP): Use SUB_LONG; avoid FT_ABS.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8706
2018-06-02 Werner Lemberg <wl@gnu.org>
* src/autofit/afwarp.h: Use AF_CONFIG_OPTION_USE_WARPER (#54033).
2018-05-31 Werner Lemberg <wl@gnu.org>
* src/raster/ftraster.c (black_TWorker_): Remove `gTarget' field.
This is no longer used.
2018-05-31 Werner Lemberg <wl@gnu.org>
[sfnt] Get colors from `CPAL' table in right order (#54015).
* src/sfnt/ttcolr.c (tt_face_find_color): Fix it.
2018-05-30 Werner Lemberg <wl@gnu.org>
ftcolor.h: Improve API design, fix typos (#54011, #54014).
* include/freetype/ftcolor.h (FT_Palette_Get_Names): Replace with...
(FT_Palette_Get_Name_IDs): ... this function.
(FT_Palette_Get_Entry_Names): Replace with...
(FT_Palette_Get_Entry_Name_IDs): ... this function
s/FT_Palette_Set_Foreground_COlor/FT_Palette_Set_Foreground_Color/.
2018-05-30 Armin Hasitzka <prince.cherusker@gmail.com>
Beautify a3cfed5e87232c933bdc64f43e8ebebcfd18b41b.
* src/autofit/afloader.c (af_loader_load_glyph): Move the
initialisationand declaration of variables into the if-block.
2018-05-30 Armin Hasitzka <prince.cherusker@gmail.com>
Fix pointer underflow.
The declaration of `edge2' can be reached with `edge1 == NULL' and
`axis->edges == 0' which results in undefined behaviour.
* src/autofit/afloader.c (af_loader_load_glyph): Initialise `edge2'
after checking `axis->num_edges > 1'. `edge1 != NULL' can be assumed.
2018-05-30 Werner Lemberg <wl@gnu.org>
Various minor color fixes.
* include/freetype/config/ftheader.h (FT_COLOR_H): New macro.
* include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change
type of `load_flags' to `FT_Int32'.
* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change
type of `idx' to `FT_UInt'.
(TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'.
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of
`load_flags' to `FT_Int32'.
* src/sfnt/ttcolr.c (find_base_glyph_record,
tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'.
(tt_face_find_color, tt_face_colr_blend_layer): Change type of
`color_index' to `FT_UInt'.
Fix signedness and type issues.
* src/sfnt/ttcolr.h: Updated.
2018-05-25 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[docmaker] Fix missing `Defined in (...)' under Windows/Cygwin.
This platform uses backslashes for paths, which docmaker didn't
understand correctly.
* src/tools/docmaker/tohtml.py (HtmlFormatter::blockEnter): Use
`os.path.normpath' to normalize the path for the platform being
used.
2018-05-24 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Formalize Harmony LCD rendering.
This generalizes magic outline shifts that make Harmony LCD
rendering work in terms of precise two-dimensional RGB subpixel
positions. These coordinates are now set in time of the `smooth'
module initialization and later used to shift a glyph outline for
rendering. FT_RENDER_MODE_LCD and FT_RENDER_MODE_LCD_V use the same
coordinates. The letter, however, rotates them before using.
The LCD bitmap padding is also calculated using these coordinates.
* include/freetype/internal/ftobjs.h (FT_LibraryRec): New array field
`lcd_geometry'.
* src/base/ftlcdfil.c (ft_lcd_padding): Reworked.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Updated accordingly.
* src/smooth/ftsmooth.c [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]
(ft_smooth_init): Initialize `lcd_geometry'.
(ft_smooth_render_generic): Formalize outline shifts.
2018-05-22 Werner Lemberg <wl@gnu.org>
[truetype] Reject elements of composites with invalid glyph indices.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8413
* src/truetype/ttgload.c (TT_Load_Composite_Glyph): Implement it.
2018-05-22 Werner Lemberg <wl@gnu.org>
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Trace # of points.
2018-05-20 Werner Lemberg <wl@gnu.org>
* include/freetype/ftcolor.h: New file.
This is an interface to the `CPAL' OpenType table. No
implementation yet.
2018-05-18 Alexei Podtelezhnikov <apodtele@gmail.com>
* include/freetype/internal/ftcalc.h (FT_MSB): Verified `_MSC_VER'.
Actually `_BitScanReverse' is available since VS2005.
2018-05-18 Werner Lemberg <wl@gnu.org>
* include/freetype/internal/ftcalc.h (FT_MSB): Use `_MSC_VER' value.
Older VC versions don't provide `_BitScanReverse'. We test for VC
2013.
Reported by John Emmas <john@creativepost.co.uk>.
2018-05-17 Werner Lemberg <wl@gnu.org>
s/inline/__inline/ for MSVC.
Reported by John Emmas <john@creativepost.co.uk>.
* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Do it.
2018-05-16 Werner Lemberg <wl@gnu.org>
Add function `FT_Get_GlyphLayers' to access `COLR' table data.
* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this
structure to...
* include/freetype/freetype.h (FT_Glyph_LayerRec): ... this
header file.
(FT_Glyph_Layer): New typedef.
Update code to use it where appropriate.
* src/base/ftobjs.c (FT_Get_GlyphLayers): New function.
2018-05-15 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Fix mono bitmap presetting (#53896).
It is rather fundamental to set monochrome bitmap based on rounded
CBox because the b/w rasterizer turns on pixels when their centers are
inside the glyph outline. The dropout control is unpredictable and can
distort narrow glyphs if the bitmap is too wide.
Reported by Chris Liddell.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): If BBox boundaries
are too close, adjust them before rounding.
2018-05-15 Werner Lemberg <wl@gnu.org>
[psaux] Fix compiler warning (#53915).
* src/psaux/psft.c (cf2_freeT1SeacComponent): Do it.
2018-05-15 Werner Lemberg <wl@gnu.org>
[sfnt] Fix memory leak in handling `COLR' data.
* src/truetype/ttgload.c (TT_Load_Glyph): Free old `layers' array
before reassigning allocated memory.
Only allocate `color_layers' if we don't have one already.
2018-05-15 Werner Lemberg <wl@gnu.org>
[sfnt] If `COLR' is present, don't assume that all glyphs use it.
* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if
current glyph is not a `COLR' base glyph.
* src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate
`color_layers' if there are no color layers.
2018-05-14 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (FT_Load_Glyph): Fix signature of `pixel_modes'.
2018-05-14 Werner Lemberg <wl@gnu.org>
Provide dummy functions if `TT_CONFIG_OPTION_SFNT_NAMES' is not set.
* src/base/ftsnames.c [!TT_CONFIG_OPTION_SFNT_NAMES]: Implement it.
2018-05-13 Werner Lemberg <wl@gnu.org>
* src/base/ftobjs.c (FT_Load_Glyph): Improve tracing.
2018-05-13 Shao Yu Zhang <shaozhang@fb.com>
Werner Lemberg <wl@gnu.org>
[sfnt] Preliminary support of coloured layer outlines (#44689).
This commit enables OpenType's COLR/CPAL table handling; a typical
application are color emojis that can be scaled to any size.
If the color palette does not exist or is invalid, the rendering
step rasterizes the outline instead. The current implementation
assumes that the foreground is black.
Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS.
There are still some issues with metrics; additionally, an API to
fetch color layers is missing.
* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_COLOR_LAYERS): New macro.
* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec,
FT_Colr_InternalRec): New structures.
(FT_Slot_InternalRec): Add `color_layers' field.
* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func,
TT_Blend_Colr_Func): New function types.
(SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer',
and `colr_blend' fields.
* include/freetype/internal/tttypes.h (TT_FaceRec): Add
`colr_and_cpal' field.
* include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New
macros.
* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files.
* src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal):
Handle glyph color layers.
* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add
`ttcolr.c'.
* src/sfnt/sfdriver.c: Include `ttcolr.h'.
(PUT_COLOR_LAYERS): New macro.
Update call to `FT_DEFINE_SFNT_INTERFACE'.
* src/sfnt/sfnt.c: Include `ttcolr.c'.
* src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables.
(sfnt_done_face): Updated.
* src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-12 Arkady Shapkin <arkady.shapkin@gmail.com>
Use MS VC++'s _BitScanReverse to calculate MSB (patch #9636).
* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Implement
it.
2018-05-10 Alan Coopersmith <alan.coopersmith@oracle.com>
Fix DLL compilation on Solaris.
AC_COMPILE_IFELSE only tries to compile a `*.c' to a `*.o'. The
Solaris Studio 12.1 through 12.5 compilers see the
`-fvisibility=hidden' flag, but ignore it with a warning of:
cc: Warning: Option -fvisibility=hidden passed to ld,
if ld is invoked, ignored otherwise
AC_LINK_IFELSE does the compile and then tries to link the result,
at which point the Solaris linker will issue an error:
ld: fatal: option '-fvisibility=hidden' is incompatible with
building a dynamic executable
If we don't use AC_LINK_IFELSE to catch the error, then configure
will fail further tests which attempt to link, such as those testing
dependencies like `libbz2'.
Also, don't try adding `-fvisibility' if we have already added
`-xldscope', just use one of them, since Sun Studio 12 and earlier
compilers only issue a warning, and don't try passing through to the
linker to generate an error, so AC_LINK_IFELSE doesn't catch them.
Tested on Solaris 11.4 beta with compiler versions:
Sun Studio 8 (Sun C 5.5)
Sun Studio 10 (Sun C 5.7)
Sun Studio 11 (Sun C 5.8)
Sun Studio 12 (Sun C 5.9)
Sun Studio 12.1 (Sun C 5.10)
Oracle Solaris Studio 12.2 (Sun C 5.11)
Oracle Solaris Studio 12.3 (Sun C 5.12)
Oracle Solaris Studio 12.4 (Sun C 5.13)
Oracle Developer Studio 12.5 (Sun C 5.14)
Oracle Developer Studio 12.6 (Sun C 5.15)
gcc 5.5.0
gcc 7.3.0
and verified the libfreetype.so.6 generated by each of those
compilers exported the same set of symbols.
* builds/unix/configure.raw: Implement it.
2018-05-08 Werner Lemberg <wl@gnu.org>
[autofit] Avoid potential SEGV if running out of memory.
Problem reported by Shailesh Mistry <shailesh.mistry@hotmail.co.uk>.
* src/autofit/afshaper.c (af_shaper_buf_create,
af_shaper_buf_destroy) [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Don't
allocate and free a four-byte buffer. Instead, make those functions
no-ops; the calling functions will provide a pointer to a buffer
instead.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits),
src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits)
[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Use pointer to local variable for
`shaper_buf'.
2018-05-07 Nikolaus Waxweiler <madigens@gmail.com>
[cmake] Allow using project as subfolder in other project.
* CMakeLists.txt: Test for CMake build directory being different
from source directory. Provide other parts of the build system
access the full include directory.
2018-05-07 Werner Lemberg <wl@gnu.org>
[build] Suppress configure's `nothing to be done' message.
This is due to calling the configure script via `make' (within the
top-level `configure' wrapper script). The same can happen for all
other secondary make targets that are used to only modify the
primary one, e.g., `make setup devel'.
* builds/dos/detect.mk (emx, turboc, watcom, borlandc, borlandc16),
builds/os2/detect (visualage, watcom, borlandc, devel),
builds/unix/detect.mk (devel, lcc, unix), builds/windows/detect.mk
(visualc, watcom, visualage, lcc, mingw32, bcc32, devel-bcc,
devel-gcc): Use no-op recipe.
2018-05-04 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Support symbol visibility features of Sun / Oracle C compilers.
Reported by Kiyoshi Kanazawa:
https://lists.gnu.org/archive/html/freetype-devel/2018-05/msg00008.html
Thanks to the suggestions by Alexei and Alan Coopersmith.
* builds/unix/configure.raw: Check if "-xldscope=hidden" is
accepted, and if so, it is added to CFLAGS. This is the option
making Sun / Oracle C compilers hide the symbols from global
scope.
* include/freetype/config/ftconfig.h: Use "__global" prefix
for FT_EXPORT() macro, if SunPro C is newer than Sun ONE
Studio 8 (2003).
* builds/unix/ftconfig.in: Ditto.
* builds/vms/ftconfig.h: Ditto.
2018-05-02 Nikolaus Waxweiler <madigens@gmail.com>
Unbreak CMake Windows installation
* CMakeLists.txt: Generate ftconfig.h on non-UNIX.
2018-05-02 Werner Lemberg <wl@gnu.org>
Remove FT_CONFIG_OPTION_PIC and related code.
*/* [FT_CONFIG_OPTION_PIC]: Remove all code guarded by this
preprocessor symbol.
*/*: Replace `XXX_GET' macros (which could be either a function in
PIC mode or an array in non-PIC mode) with `xxx' arrays.
* include/freetype/internal/ftpic.h, src/autofit/afpic.c,
src/autofit/afpic.h, src/base/basepic.c, src/base/basepic.h,
src/base/ftpic.c, src/cff/cffpic.c, src/cff/cffpic.h,
src/pshinter/pshpic.c, src/pshinter/pshpic.h, src/psnames/pspic.c,
src/psnames/pspic.h, src/raster/rastpic.c, src/raster/rastpic.h,
src/sfnt/sfntpic.c, src/sfnt/sfntpic.h, src/smooth/ftspic.c,
src/smooth/ftspic.h, src/truetype/ttpic.c, src/truetype/ttpic.h:
Removed.
----------------------------------------------------------------------------
Copyright (C) 2018-2019 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used, modified,
and distributed under the terms of the FreeType project license,
LICENSE.TXT. By continuing to use, modify, or distribute this file you
indicate that you have read the license and understand and accept it
fully.
Local Variables:
version-control: never
coding: utf-8
End:
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