Commit ba47af32ba6a8a5f2cd5c0a5868c37c6a2665c1c
2021-07-25T06:50:36
ChangeLog housekeeping. Archive old `ChangeLog` file. We no longer write ChangeLog entries manually; instead, the file will be created from commit messages (which should be formatted in GNU's ChangeLog style) by a call to gitlog-to-changelog --format='%B%n' or something similar (this script is part of the 'gnulib' repository).
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diff --git a/.gitattributes b/.gitattributes
deleted file mode 100644
index 31f962f..0000000
--- a/.gitattributes
+++ /dev/null
@@ -1 +0,0 @@
-ChangeLog merge=merge-changelog
diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index e649d31..0000000
--- a/ChangeLog
+++ /dev/null
@@ -1,7815 +0,0 @@
-2021-07-18 Werner Lemberg <wl@gnu.org>
-
- * Version 2.11.0 released.
- ==========================
-
-
- Tag sources with `VER-2-11-0'.
-
- * docs/VERSION.TXT: Add entry for version 2.11.0.
- * docs/CHANGES: Updated.
-
- * README, src/base/ftver.rc, builds/windows/vc2010/index.html,
- builds/windows/visualc/index.html,
- builds/windows/visualce/index.html,
- builds/wince/vc2005-ce/index.html,
- builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
- s/2.10.4/2.11.0/, s/2104/2110/.
-
- * include/freetype/freetype.h (FREETYPE_MINOR): Set to 11.
- (FREETYPE_PATCH): Set to 0.
-
- * builds/unix/configure.raw (version_info): Set to 24:0:18.
- * CMakeLists.txt (VERSION_MINOR): Set to 11.
- (VERSION_PATCH): Set to 0.
-
- * builds/toplevel.mk (dist): Ignore more git-related files.
-
-2021-07-17 David Turner <david@freetype.org>
-
- * src/smooth/ftgrays.c: Fix compilation if `FT_LONG64` is undefined.
-
- The code assumed that if `__SSE2__` is defined, then 64-bit integer
- types are available. This is not the case apparently for certain
- multilib compiler targets like 'x86_32.x86' used by Gentoo.
-
- This patch fixes the issue by disabling the special code path when
- 64-bit integer types are not available.
-
- Fixes #1071.
-
-2021-07-16 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
-
- [tests] Allow arbitrary build directories.
-
- * tests/issue-1063/main.c (main): I am building with a build
- directory that is not directly inside the source tree, so the path
- `../tests/data/As.I.Lay.Dying.ttf` does not resolve to the test
- input file. This change passes the test data directory as an
- environment variable to allow arbitrary build directories.
-
- * tests/meson.build: Updated.
-
-2021-07-16 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
-
- * tests/issue-1063/main.c (main): Fix uninitialized variable.
-
- I tried running `meson test` but the test just crashed and gdb
- reported that the face argument to `FT_Get_Char_Index` was nonsense.
- With this change the test prints 'Could not open file: ' as it
- should.
-
-2021-07-16 Werner Lemberg <wl@gnu.org>
-
- [smooth] Minor fixes.
-
- * src/smooth/ftgrays.c (gray_render_conic): Move variable and
- structure declarations to beginning of function. Inspite of C99
- compliance we still do this for the sake of backward compatibility.
- This also avoids a shadowing declaration of `count`.
- (gray_convert_glyph_inner): Fix typo.
-
-2021-07-15 Ben Wagner <bungeman@chromium.org>
-
- * src/smooth/ftgrays.c: Guard inclusion of `emmintrin.h`.
-
- Guard inclusion of `emmintrin.h` with `#ifdef __SSE2__`. The gcc
- version of this header, `xmmintrin.h`, and `mmintrin.h` check that
- the appropriate defines are set before defining anything (are
- internally guarded). However, the clang versions of these includes
- are not internally guarded. As a result of this, externally guard
- the inclusion of these headers.
-
-2021-07-15 David Turner <david@freetype.org>
-
- [smooth] Implement Bézier quadratic arc flattening with DDA.
-
- Benchmarking shows that this provides a very slighty performance
- boost when rendering fonts with lots of quadratic Bézier arcs,
- compared to the recursive arc splitting, but only when SSE2 is
- available, or on 64-bit CPUs.
-
- On a 2017 Core i5-7300U CPU on Linux/x86_64:
-
- ftbench -p -s10 -t5 -cb DroidSansFallbackFull.ttf
-
- Before: 4.033 us/op (best of 5 runs for all numbers)
- After: 3.876 us/op
-
- ftbench -p -s60 -t5 -cb DroidSansFallbackFull.ttf
-
- Before: 13.467 us/op
- After: 13.385 us/op
-
- * src/smooth/ftgrays.c (gray_render_conic): New implementation
- based on DDA and optionally SSE2.
-
-2021-07-15 David Turner <david@freetype.org>
-
- [smooth] Minor speedup to smooth rasterizer.
-
- This speeds up the smooth rasterizer by avoiding conditional
- branches in the hot path.
-
- - Define a fixed 'null cell', which will be pointed to whenever the
- current cell is outside of the current target region. This avoids
- a `ras.cell != NULL` check in the `FT_INTEGRATE` macro.
-
- - Also use the null cell as a sentinel at the end of all `ycells`
- linked-lists, by setting its x coordinate to `INT_MAX`. This
- avoids a `if (!cell)` check in `gray_set_cell` as well.
-
- - Slightly change the worker struct fields to perform a little less
- operations during rendering.
-
- Example results (on a 2013 Corei5-3337U CPU)
-
- out/ftbench -p -s10 -t5 -bc DroidSansFallbackFull.ttf
-
- Before: 5.472 us/op
- After: 5.275 us/op
-
- out/ftbench -p -s60 -t5 -bc DroidSansFallbackFull.ttf
-
- Before: 17.988 us/op
- After: 17.389 us/op
-
- * src/smooth/ftgrays.c (grat_TWorker): Replace `num_cells` field with
- `cell_free` and `cell_limit`.
- (NULL_CELL_PTR, CELL_MAX_X_VALUE, CELL_IS_NULL): New macros.
- (gray_dump_cells, gray_set_cell, gray_sweep, gray_sweep_direct,
- gray_convert_glyph_inner, gray_convert_glyph): Updated.
-
-2021-07-15 David Turner <david@freetype.org>
-
- [tests] Rewrite download script in Python3.
-
- This commit replaces the bash script with a Python script that does
- the same work, plus avoiding to download anything if the files are
- already installed with the right content.
-
- We now use the first 8 bytes of each file's sha256 hash for the
- digest.
-
- * tests/scripts/download-test-fonts.sh: Removed.
- * tests/scripts/download-test-fonts.py: New script.
- * tests/README.md: Updated.
-
-2021-07-15 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
-
- Support architectures where `long` is smaller than pointers.
-
- I am currently trying to compile FreeType for CHERI-extended ISAs
- (CHERI-RISC-V and Arm's Morello), but I am getting compiler warnings
- from the `FT_UINT_TO_POINTER` macro. When compiling with the CHERI
- Clang compiler, not using `uinptr_t` for casts between integers an
- pointers results in the following `-Werror` build failures:
-
- ```
- In file included from .../src/truetype/truetype.c:22:
- .../src/truetype/ttgload.c:1925:22: error:
- cast from provenance-free integer type to pointer type will
- give pointer that can not be dereferenced
- [-Werror,-Wcheri-capability-misuse]
- node->data = FT_UINT_TO_POINTER( glyph_index );
- ^
- .../include/freetype/internal/compiler-macros.h:79:34: note:
- expanded from macro 'FT_UINT_TO_POINTER'
- ```
-
- * include/freetype/internal/compiler-macros.h (FT_UINT_TO_POINTER):
- The ISO C standard compliant fix for this would be to use
- `uintptr_t` from `stdint.h`, but I am not sure if this is supported
- by the minimum compiler version. Therefore, use the
- compiler-defined `__UINTPTR_TYPE__` macro (supported in GCC 4.6+ and
- Clang since about 3.0) before checking for `_WIN64` and falling back
- to `unsigned long`.
-
-2021-07-13 Oleg Oshmyan <chortos@inbox.lv>
-
- [base] Fix `FT_Open_Face`'s handling of user-supplied streams.
-
- This was already true (though undocumented) most of the time, but
- not if `FT_NEW` inside `FT_Stream_New` failed or if the
- `FT_OPEN_XXX` flags were bad.
-
- Normally, `FT_Open_Face` calls `FT_Stream_New`, which returns the
- user-supplied stream unchanged, and in case of any subsequent error
- in `FT_Open_Face`, the stream is closed via `FT_Stream_Free`.
-
- Up to now, however, `FT_Stream_New` allocates a new stream even if
- it is already given one by the user. If this allocation fails, the
- user-supplied stream is not returned to `FT_Open_Face` and never
- closed. Moreover, the user cannot detect this situation: all they
- see is that `FT_Open_Face` returns `FT_Err_Out_Of_Memory`, but that
- can also happen after a different allocation fails within the main
- body of `FT_Open_Face`, when the user's stream has already been
- closed by `FT_Open_Face`. It is plausible that the user stream's
- `close` method frees memory allocated for the stream object itself,
- so the user cannot defensively free it upon `FT_Open_Face` failure
- lest it ends up doubly freed. All in all, this ends up leaking the
- memory/resources used by user's stream.
-
- Furthermore, `FT_Stream_New` simply returns an error if the
- `FT_OPEN_XXX` flags are unsupported, which can mean either an
- invalid combination of flags or a perfectly innocent
- `FT_OPEN_STREAM` on a FreeType build that lacks stream support.
- With this patch, the user-supplied stream is closed even in these
- cases, so the user can be sure that if `FT_Open_Face` failed, the
- stream is definitely closed.
-
- * src/base/ftobjs.c (FT_Stream_New): Don't allocate a buffer
- unnecessarily.
- Move error-handling code to make the control flow more obvious.
- Close user-supplied stream if the flags are unsupported.
- `FT_Stream_Open` always sets `pathname.pointer`, so remove the
- redundant (re)assignment. None of the `FT_Stream_Open...` functions
- uses `stream->memory`, so keep just one assignment at the end,
- shared among all possible control flow paths.
- ('Unsupported flags' that may need a stream closure can be either an
- invalid combination of multiple `FT_OPEN_XXX` mode flags or a clean
- `FT_OPEN_STREAM` flag on a FreeType build that lacks stream
- support.)
-
-2021-07-13 Oleg Oshmyan <chortos@inbox.lv>
-
- [base] Reject combinations of incompatible `FT_OPEN_XXX` flags.
-
- The three modes are mutually exclusive, and the documentation of the
- `FT_OPEN_XXX` constants notes this. However, there was no check to
- validate this in the code, and the documentation on `FT_Open_Args`
- claimed that the corresponding bits were checked in a well-defined
- order, implying it was valid (if useless) to specify more than one.
- Ironically, this documented order did not agree with the actual
- code, so it could not be relied upon; hopefully, nobody did this and
- nobody will be hurt by the new validation.
-
- Even if multiple mode bits were allowed, they could cause memory
- leaks: if both `FT_OPEN_STREAM` and `stream` are set along with
- either `FT_OPEN_MEMORY` or `FT_OPEN_PATHNAME`, then `FT_Stream_New`
- allocated a new stream but `FT_Open_Face` marked it as an 'external'
- stream, so the stream object was never released.
-
- * src/base/ftobjs.c (FT_Stream_New): Reject incompatible
- `FT_OPEN_XXX` flags.
-
-2021-07-12 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
-
- * meson.build: Fix build for other UNIX systems (e.g., FreeBSD).
-
- Without this change the build of `unix/ftsystem.c` fails because the
- `ftconfig.h` header that defines macros such as `HAVE_UNISTD_H` and
- `HAVE_FCNTL_H` is only being generated for Linux, macOS, and Cygwin
- systems:
-
- ```
- .../builds/unix/ftsystem.c:258:32: error:
- use of undeclared identifier 'O_RDONLY'
- file = open( filepathname, O_RDONLY );
- ```
-
- Instead of hardcoding a list of operating systems for this check,
- update the logic that decides whether to build the file and set a
- boolean flag that can be checked instead.
-
-2021-07-12 Werner Lemberg <wl@gnu.org>
-
- [autofit] More clean-ups.
-
- * src/autofit/afhints.h (AF_GlyphHintsRec): Remove the no longer
- needed fields `xmin_delta` and `xmax_delta`.
-
- * src/autofit/afhints.c (af_glyph_hints_reload),
- src/autofit/afloader.c (af_loader_load_glyph): Updated.
-
-2021-07-12 Werner Lemberg <wl@gnu.org>
-
- Small clean-ups for the last few commits.
-
- * include/freetype/fttrace.h (afwarp): Removed.
-
-2021-07-12 David Turner <david@freetype.org>
-
- Remove obsolete `AF_Angle` type and related sources.
-
- * src/autofit/afangles.c: File removed. Functions related to
- sorting moved to...
- * src/autofit/afhints.c (af_sort_pos, af_sort_and_quantize_widths):
- This file.
- * src/autofit/afangles.h: File removed.
- * src/autofit/aftypes.h: Updated.
- * src/autofit/autofit.c: Updated.
-
- * src/autofit/rules.mk (AUTOF_DRV_SRC): Updated.
-
-2021-07-12 David Turner <david@freetype.org>
-
- Remove experimental auto-hinting 'warp' mode.
-
- This feature was always experimental, and probably never worked
- properly. This patch completely removes it from the source code,
- except for a documentation block describing it for historical
- purposes.
-
- * devel/ftoption.h, include/freetype/config/ftoption.h: Remove
- `AF_CONFIG_OPTION_USE_WARPER`.
-
- * include/freetype/ftdriver.h: Document 'warping' property as
- obsolete.
-
- * src/autofit/afwarp.c, src/autofit/afwarp.h: Files removed.
- * src/autofit/*: Remove any code related to warp mode.
-
-2021-07-12 David Turner <david@freetype.org>
-
- Remove experimental 'Latin2' writing system (`FT_OPTION_AUTOFIT2`).
-
- This code has always been experimental and was never compiled anyway
- (`FT_OPTION_AUTOFIT2` does not appear in `ftoption.h` or even any of
- our build files).
-
- * include/freetype/internal/fttrace.h (aflatin2): Removed.
- * src/autofit/aflatin2.h, src/autofit/aflatin2.c: Files removed.
- * src/autofit/afloader.c: Remove undocumented hook to activate
- Latin2 system.
- * src/autofit/afstyles.h: Remove `ltn2_dflt` style definition.
- * src/autofit/afwrtsys.h: Remove `LATIN2` writing system definition.
- * src/autofit/autofit.c: Updated.
-
-2021-07-05 Werner Lemberg <wl@gnu.org>
-
- * src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix argument.
-
- Reported by Hin-Tak.
-
-2021-07-03 Werner Lemberg <wl@gnu.org>
-
- * meson_options.txt: Sort alphabetically; no final full stops.
-
-2021-07-01 Ben Wagner <bungeman@chromium.org>
-
- * src/truetype/ttgxvar.c (tt_set_mm_blend): Test `coords`.
-
- It is undefined behavior to pass `NULL` to `memcpy`. `coords' is
- passed to `memcpy` but `TT_Get_MM_Blend` and `TT_Get_Var_Design`
- explictly call `tt_set_mm_blend` with `coords` as `NULL`. In
- addition, `TT_Set_MM_Blend` has a similar possible issue.
-
-2021-06-30 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Support PaintScale in 'COLR' v1 parsing.
-
- * include/freetype/ftcolor.h (FT_PaintFormat): Renumber values, add
- `FT_COLR_PAINTFORMAT_SCALE`.
- (FT_PaintScale): New structure to represent 'PaintScale*' tables.
- (FT_COLR_Paint): Updated.
-
- * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration.
- (read_paint): Parse 'PaintScale' and friends.
-
-2021-06-30 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Handle fonts without layer list in 'COLR' v1.
-
- 'COLR' v1 fonts do not necessarily need to have a layer list; for
- this reason, 'fontTools' recently started generating fonts in a way
- that drops the layer list if there are no layers in it. This
- results in the layer list offset becoming zero, which FreeType
- treated as an invalid table. Fix that and handle the case for layer
- list offset being 0. This slightly changes how we need to calculate
- the starting offset for paints.
-
- * src/sfnt/ttcolr.c (tt_face_load_colr): Handle case of layer list
- offset being zero without outright rejecting table.
-
-2021-06-30 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/raster/ftraster.c (Render_Single_Pass): Simplify `band_stack'.
-
-2021-06-29 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Do not skip the second pass without dropout control.
-
- The second pass also fixes horizontal lines through the pixel centers.
-
- * src/raster/ftraster.c (black_TWorker): Do not use `second_pass'.
- (Render_Glyph): Skip the second pass only with the appropriate flag.
-
-2021-06-29 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Handle sub-band stack locally.
-
- * src/raster/ftraster.c (black_TWorker): Move `band_stack' from here..
- (Render_Single_Pass): ... to here and accept limit arguments.
- (Render_Glyph): Updated.
-
-2021-06-25 Anurag Thakur <anuthadev@gmail.com>
-
- [CI] Introduce linux CI and refactor job names.
-
- * .gitlab-ci.yml: Added jobs for building freetype on linux.
-
-2021-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Handle Bézier stack locally.
-
- * src/raster/ftraster.c (black_TWorker): Move `arcs' from here...
- (Conic_To, Cubic_To): ... to here to tighten their scope.
- (Bezier_Up, Bezier_Down): ... Take the current `arc' argument.
-
-2021-06-28 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Improve paint limit checks
-
- Paint tables can appear before the `base_glyphs_v1` offset if the
- font is produced with the layer list before the base glyph list. In
- this case paint tables can occur after the layer list but before the
- base glyph list. Checks in the 'COLR' v1 code were rejecting fonts
- with this layout. Improve these checks by calculating a minimum
- offset after which paint tables can occur and use that in safety
- checks.
-
- * src/sfnt/ttcolr.c (Colr, tt_face_load_colr): Declare
- `paint_start_v1` and calculate that as the minimum of the end of
- layer list and base glyph list.
- (get_child_table_pointer, read_paint, tt_face_get_paint_layers):
- Use that in safety checks.
-
-2021-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Clean up vertical sweep.
-
- * src/raster/ftraster.c (black_TWorker): Replace the current line
- offset with the pointer and drop the increment.
- (Function_Sweep_Init): Take values as arguments instead of pointers.
- (Vertical_Sweep_*, Horizontal_Sweep_Init, Draw_Sweep): Updated.
-
-2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Make `band_top' local variable.
-
- * src/raster/ftraster.c (black_TWorker): Move `band_top' from here...
- (Render_Single_Pass): ... to here, and refactor.
- (Render_Glyph): Updated.
-
-2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Adjust sub-band bisecting limits.
-
- We can bisect a band until it is just a single scan line. This might
- be slow and cause time-outs but if we need to impose limits it should
- be elsewhere.
-
- * src/raster/ftraster.c (Render_Single_Pass): Tweak sub-banding.
-
-2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/raster/ftraster.c (Render_Single_Pass): Remove dead code.
-
-2021-06-25 Werner Lemberg <wl@gnu.org>
-
- [base] Add trace level to logging output.
-
- Some practical debugging work has shown that displaying level X of
- an `FT_TRACEX` macro in the output of `FT2_DEBUG="... -v"` would be
- very helpful to find out which trace level should be selected. As
- an example, we now get output like
-
- ```
- [ttobjs:2] TTF driver
- [ttobjs:2] SFNT driver
- [sfobjs:2] not a font using the SFNT container format
- [t1objs:2] Type 1 driver
- [stream:7] FT_Stream_EnterFrame: 14 bytes
- ```
-
- * include/freetype/internal/ftdebug.h (FT_LOGGING_TAGX): New macro.
- (FT_LOG): Use it to add the trace level to the logging tag.
-
- * include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):
- Adjust.
-
- * docs/DEBUG: Updated.
-
-2021-06-24 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth, raster] Fix up and align error codes.
-
- FT_Render_Glyph picked up FAILURE or 1 returned from the raster
- function, which became a confusing error code. Instead, return
- Raster_Overflow in the unlikely event that banding does not help or
- another meaningful error.
-
- * src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph):
- Use Raster_Overflow when the rendering pool is exhausted and return it
- if banding does not help.
- (gray_raster_render): Use Smooth_Err_Ok.
-
- * src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow
- if banding does not help or another error code.
-
-2021-06-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth, raster] Remove synonymous error macros.
-
- * src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/.
- (gray_convert_glyph_inner): Updated accordingly.
-
- * src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros.
- (New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up,
- Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render):
- Updated accordingly.
-
-2021-06-22 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] s/PaintTransformed/PaintTransform/, s/transformed/transform/.
-
- * include/freetype/ftcolor.h (FT_PaintTransformed, FT_PaintFormat,
- FT_COLR_Paint): Do it to make it harmonize with other names such as
- 'PaintTranslate'.
-
- * src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Ditto.
-
-2021-06-22 Dominik Röttsches <drott@chromium.org>
-
- Move 'COLR' API to `ftcolor.h`.
-
- * include/freetype/freetype.h: Cut section layer managament
- containing 'COLR' v0 and v1 API and move it to `ftcolor.h` as
- requested by Werner on freetype-devel.
- * include/freetype/ftcolor.h: Paste that section.
-
-2021-06-19 Werner Lemberg <david@freetype.org>
-
- [truetype] Fix integer overflow.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312
-
- * src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`.
-
-2021-06-19 Werner Lemberg <david@freetype.org>
-
- [autofit] Prevent hinting if there are too many segments.
-
- This speeds up handling of broken glyphs.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35309
-
- * src/autofit/aflatin.c (af_latin_hints_compute_segments): Implement
- it.
-
-2021-06-18 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely.
-
-2021-06-16 David Turner <david@freetype.org>
-
- [autofit] Fix return value of `FT_Load_Glyph`.
-
- * src/autofit/afglobal.c (af_face_globals_get_metrics): The issue is
- that `style_metrics_init` sometimes returns -1 without clearing
- `error`. While looping to `Again`, the next operation is
- successful, but -1 is still returned by the function. The fix is to
- set `error` to 0 appropriately.
-
- Fixes #1063.
-
-2021-06-15 David Turner <david@freetype.org>
-
- [meson] Add first regression test to FreeType.
-
- * tests/README.md: New file that explains how to build and run the
- tests with the Meson build.
-
- * tests/scripts/download-test-fonts.sh: New bash script to download
- test font files to the `tests/data` folder.
-
- * meson.build, meson_options.txt: Add 'tests' option to enable
- building and running the test programs (disabled by default).
-
- * tests/meson.build: New file.
-
- * tests/issue-1063/main.c: Simple regression test to exhibit issue
- 1063.
-
- * .gitignore: Ignore the content of the `tests/data` folder for
- now.
-
-2021-06-12 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [type42] Fix new memory leak.
-
- We need to inverse inheritance of FT_GlyphSlot_Internal so that we
- have a chance to free the rendered bitmap from the parent slot.
-
- * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts
- of the child `ttslot' and replace it with the parent structure.
- (T42_GlyphSlot_Done): Updated accordingly.
-
-2021-06-12 Werner Lemberg <wl@gnu.org>
-
- [psaux] Fix another assertion.
-
- * src/psaux/psintrp.c (cf2_interpT2CharString)
- <cf2_escCALLOTHERSUBR>: Convert assertion into error, since the
- problem can happen with invalid user input.
-
- Test case is file
-
- fuzzing/corpora/legacy/oss-fuzz/5754332360212480-unknown-read
-
- in the `freetype2-testing` repository.
-
-2021-06-12 Werner Lemberg <wl@gnu.org>
-
- [psaux] Fix assertions.
-
- * src/psaux/pshints.c (cf2_hintmap_adjustHints): Check for overflow
- before emitting an assertion error.
-
- Test case is file
-
- fuzzing/corpora/legacy/oss-fuzz/4594115297673216-integer-overflow
-
- in the `freetype2-testing` repository.
-
-2021-06-09 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/truetype/ttinterp.c (TT_RunIns): Optimize tracing.
-
-2021-06-09 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [sdf] Fix SDF positioning.
-
- * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to
- `bitmap_top' and `bitmap_left'.
-
- * sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning.
-
-2021-06-08 Werner Lemberg <wl@gnu.org>
-
- Fix 'devel' build for 'COLR' v1.
-
- * devel/ftoption.h: Synchronize with
- `include/freetype/config/ftoption.h`.
-
-2021-06-08 Werner Lemberg <wl@gnu.org>
-
- [sfnt] Sanitize cmap4 table better.
-
- Fixes #1062.
-
- * src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of
- `length` gracefully.
-
-2021-06-08 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Pointer validity check when reading 'COLR' v1 layers
-
- * src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the
- existing sanity checks, ensure that the pointer to the layer to be
- read is within the 'COLR' v1 table.
-
-2021-06-08 Werner Lemberg <wl@gnu.org>
-
- * src/sdf/ftsdfcommon.c: Fix inclusion of header files.
-
-2021-06-08 Werner Lemberg <wl@gnu.org>
-
- [sdf] Make `make multi` work.
-
- * src/sdf/ftsdf.c: Include `ftbitmap.h`.
-
- * src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`.
- Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends.
-
- * src/sdf/ftsdfcommon.c: New file.
-
- * src/sdf/rules.mk, src/sdf/sdf.c: Updated.
-
-2021-06-08 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Use 8 bits for final SDF output instead of 16bits.
-
- Since 8-bits is enough to represent SDF data we no longer require
- 16-bits for this purpose. Also, we now normalize the output data
- to use the entire 8-bit range efficiently. For example: if we use
- 3.5 format with a spread of 1 we basically only use the starting
- 5-bits. By normalizing we can use the entire 8-bit range.
-
- * include/freetype/freetype.h (FT_Render_Mode): Updated description
- for `FT_RENDER_MODE_SDF` regarding this change.
-
- * include/freetype/ftimage.h (FT_Pixel_Mode): Removed
- `FT_PIXEL_MODE_GRAY16` since no longer required.
-
- * include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer
- required.
-
- * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit
- bitmap instead of 16-bit buffer.
-
- * src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert
- 16.16 distance value to our desired format.
-
- * src/sdf/ftsdf.c (sdf_generate_with_overlaps,
- sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function
- and also use 8-bit output buffer.
-
- * src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead
- of 16-bit buffer.
-
-2021-06-02 Ben Wagner <bungeman@chromium.org>
- Werner Lemberg <wl@gnu.org>
-
- [sfnt] Fix fallout from 2021-05-29 change.
-
- * src/sfnt/ttcolr.c (find_base_glyph_record,
- find_base_glyph_v1_record): Adjust binary search.
-
- Needs to be updated with change to unsigned.
-
-2021-06-02 Werner Lemberg <wl@gnu.org>
-
- * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing.
-
- Problem reported by Alexei.
-
-2021-06-02 Werner Lemberg <wl@gnu.org>
-
- [psaux] Fix MSVC compiler warnings.
-
- * src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):
- Add cast.
-
-2021-05-29 Werner Lemberg <wl@gnu.org>
-
- Fix compilation errors and (some) warnings for clang++.
-
- * src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static.
-
- * src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c
- (ftc_snode_compare): Remove semicolon.
-
- * src/cff/cffparse.c (cff_parser_run): Add `break` statement.
-
- * src/cid/cidload.c (cid_hex_to_binary): Add cast.
-
- * src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop.
- (bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add
- casts.
- * src/sdf/ftsdf.c (sdf_generate_bounding_box,
- sdf_generate_with_overlaps): Ditto.
- * src/sdf/ftsdfcommon.h (square_root): Ditto.
- * src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render,
- ft_bsdf_render): Ditto.
-
- * src/sfnt/ttcolr.c (find_base_glyph_record,
- find_base_glyph_v1_record): Fix variable signedness.
- (read_color_line): Add cast.
- (read_paint): Add casts.
- Fix signedness issue.
- (tt_face_get_colorline_stops) Fix signedness issues.
-
- * src/sfnt/ttpost.c (load_format_20): Add casts.
-
- * src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS):
- Remove final semicolons.
-
-2021-05-29 Werner Lemberg <wl@gnu.org>
-
- [build] Allow overriding of `ANSIFLAGS` for GNU make build.
-
- * builds/*: Implement it.
-
-2021-05-27 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [type42] Fix auto-hinting.
-
- The autohinter could not access the base (unscaled) outline in the
- child TrueType glyph slot. We now share the internal parts between
- the parent and child glyph slots. Fixes #1057.
-
- * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts
- of `T42_GlyphSlot' and replace it with the child TrueType structure.
- (T42_GlyphSlot_Done): Updated accordingly.
-
-2021-05-25 Werner Lemberg <wl@gnu.org>
-
- [psaux] Guard and trace AFM kern data allocation.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543
-
- * include/freetype/internal/fttrace.h: Add 'afmparse' trace
- component.
-
- * src/psaux/afmparse.c (FT_COMPONENT): Define.
- (afm_parse_track_kern, afm_parse_kern_pairs): Protect against
- allocations bombs.
- Add tracing.
- (afm_parse_kern_data): Don't allow multiple kern data sections.
-
-2021-05-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * meson.build (ft2_public_headers): Add missing `ftcid.h'.
-
- Fixes #1058.
-
-2021-05-20 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [type42] Avoid some memory zeroing.
-
- * src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro.
- * src/type42/t42parse.c (t42_parse_sfnts): Ditto.
-
-2021-05-19 Nikolaus Waxweiler <madigens@gmail.com>
-
- [CMake] Update dependency finders.
-
- 1. Fixes CMake using any found HarfBuzz version lower than the minimum
- required. This is based on HALX99's merge request at
- https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/31
- 2. Update FindHarfBuzz.cmake from
- https://github.com/WebKit/WebKit/blob/1ce32454/Source/cmake/FindHarfBuzz.cmake
- and guard post-CMake-3.1 features to keep the minimum version unchanged
- 3. Update FindBrotliDec.cmake to stop the warnings, based on what
- https://github.com/google/woff2/blob/a0d0ed7d/cmake/FindBrotliDec.cmake
- is doing
-
- * CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Implement 1 and 2.
- * builds/cmake/FindBrotliDec.cmake: Implement 3.
-
-2021-05-19 Ben Wagner <bungeman@chromium.org>
-
- [gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`.
-
- While a function pointer may be cast to another function pointer
- type, it is required to cast the function pointer back to the
- original function pointer type before calling it. If a parameter is
- a pointer the exact pointer type is required. Using a pointer to a
- different underlying type is technically undefined behavior. The
- wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took
- `FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so
- when gzip calls these callbacks through `alloc_func` or `free_func`
- it invokes undefined behavior. On most platforms this works out as
- expected, but newer undefined behavior detectors and targets like
- wasm can detect this and will produce an error.
-
- * src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures
- to exactly match `alloc_func` and `free_func`, respectively.
- Internally, cast the `void*` opaque pointer to `FT_Memory`.
-
-2021-05-18 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- Prioritize the anti-aliasing renderer module.
-
- * modules.cfg: Reorder the renderers.
- * include/freetype/config/ftmodule.h: Ditto.
-
-2021-05-16 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [sfnt] Additional guards on the POST table.
-
- Fixes timeout (#1055) analyzed by Ben Wagner, reported as
-
- https://crbug.com/1194092
-
- * src/sfnt/ttload.c (tt_face_load_post): Check POST format.
- * src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode
- charmap only if the glyph names exist.
- * src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and
- ".null".
-
-2021-05-13 Daniel McArdle <dmcardle@chromium.org>
-
- [psaux] Use doubling allocation strategy for CF2_ArrStack.
-
- Fixes timeout reported as
-
- https://crbug.com/1206181
-
- * src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it.
- * src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'.
-
-2021-05-12 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16.
-
- Ten was barely enough for two slanted stems. Sixteen can actually fit
- a bit more complicated scanlines.
-
-2021-05-11 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code.
-
-2021-05-11 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Faster bitmap sweeping.
-
- Selecting the fill rule or checking the direct mode each time we call
- `gray_hline' is sub-optimal. This effectively splits the direct mode
- into a separate code path while inlining `gray_hline' and saving 5-7%
- of rendering time.
-
- * src/smooth/ftgrays.c (gray_hline): Eliminated in favor of...
- (FT_FILL_RULE, FT_GRAY_SET): ... these new macros...
- (gray_sweep): ... inlined here.
- (gray_sweep_direct): New function that handles the direct span buffer.
- (gray_TWorker): Remove the span buffer.
- (gray_raster_render, gray_convert_glyph): Updated.
-
-2021-05-10 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.
-
- It is too bad the even-odd rule is not used much.
-
-2021-05-07 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [type1] Avoid MM memory zeroing.
-
- * src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map):
- Tweak allocation macros.
- * src/type1/t1objs.c (T1_Face_Done): Minor.
-
-2021-05-07 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro.
-
-2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro.
-
-2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro.
-
-2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/cid/cidload.c (cid_read_subrs): Tweak allocation macro.
-
-2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation.
-
-2021-05-05 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cff,psaux] Avoid memory zeroing (contd.).
-
- * src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak
- allocation macros.
- * src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto.
- * src/psaux/psstack.c (cf2_stack_init): Ditto.
-
-2021-05-04 Ben Wagner <bungeman@chromium.org>
-
- * src/cid/cidload.c (cid_hex_to_binary): Improve return value.
-
- Add argument to return the actual number of bytes that were decoded.
- The actual number of bytes decoded can be quite variable depending
- on the number of ignored 'whitespace' bytes or early termination
- with `>`.
- (cid_face_open): Updated to use this calculated value. This avoids
- trusting `parser->binary_length` is always be correct and reading
- uninitialized bits if fewer are actually decoded.
-
- First reported as
-
- https://crbug.com/1203240
-
-2021-05-03 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [sfnt] Streamline POST format 2.0 handing.
-
- To reduce memory allocations, we read an entire Pascal-string buffer
- and convert it to a C-string buffer. We also reject tables with
- Postscript glyph names exceeding 63 bytes.
-
- * src/sfnt/ttpost.c (load_format20): Implement it.
- (load_post_names): Check the minimal POST table size.
- (load_format25, tt_face_free_ps_names): Updated accordingly.
-
-2021-05-02 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [bdf,pcf] Avoid memory zeroing (contd.).
-
- * src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment,
- _bdf_add_property, bdf_load_font): Tweak allocation macros.
- * src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto.
-
-2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro.
-
-2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [sfnt] Avoid some memory zeroing.
-
- * src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face,
- tt_name_ascii_from_{utf16,other}): Tweak allocaton macros.
- * src/sfnt/ttload.c (tt_face_load_name): Ditto.
-
-2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros.
-
-2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro.
-
-2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [truetype] Avoid some memory zeroing.
-
- * src/truetype/ttinterp.c (Init_Context): Tweak allocation macro.
- * src/truetype/ttpload.c (tt_face_load_cvt): Ditto.
-
-2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [woff2] Avoid some memory zeroing.
-
- * src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros.
-
-2021-04-30 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again.
-
-2021-04-27 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [lzw] Preserve decompression stack when relocating to heap.
-
- * src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when
- relocating to heap.
-
-2021-04-27 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check.
-
-2021-04-27 Werner Lemberg <wl@gnu.org>
-
- * src/psmodule.c (ps_unicodes_init): Ignore empty glyph names.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637
-
-2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change.
-
-2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cff] Avoid some memory zeroing.
-
- * src/cff/cffparse.c (cff_parser_init): Tweak memory macro.
- * src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers,
- cff_charset_load, cff_vstore_load): Ditto.
-
-2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [pfr] Avoid some memory zeroing.
-
- * src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro.
- * src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps,
- pfr_phy_font_load): Ditto.
-
-2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro.
-
-2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [psaux,psnames] Avoid some memory zeroing.
-
- * src/psaux/psstack.c (cf2_stack_init): Tweak memory macro.
- * src/psnames/psmodule.c (ps_unicodes_init): Ditto.
-
-2021-04-25 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [base] Avoid some memory zeroing.
-
- * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY.
- * src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto.
-
-2021-04-25 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [bdf,pcf] Avoid some memory zeroing.
-
- * src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font):
- Tweak memory macros.
- * src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto.
- * src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property,
- _bdf_parse_glyphs, _bdf_parse_start): Ditto.
- (_bdf_add_property): Do not handle zero size.
-
-2021-04-25 Issam E. Maghni <issam.e.maghni@mailbox.org>
-
- * builds/meson/process_ftoption_h.py: Add LF at EOF.
-
- This fixes
-
- .../ftoption.h:1030:10: error:
- no newline at end of file [-Werror,-Wnewline-eof]
-
- for the generated `ftoption.h` file.
-
-2021-04-24 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/.
- * builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/sfnt/sfdriver.c (get_win_string, get_apple_string,
- sfnt_get_var_ps_name): Do not zero out the buffer.
- * src/sfnt/sfobjs.c (sfnt_init_face): Ditto.
- * src/sfnt/sfwoff.c (woff_open_font): Ditto.
- * src/sfnt/sfwoff2.c (woff2_open_font): Ditto.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name):
- Do not zero out the buffer.
- * src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto.
- * src/type1/t1load.c (parse_subrs, parse_charstrings,
- parse_blend_axis_types): Ditto.
- * src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto.
- * src/type42/t42parse.c (t42_parser_init): Ditto.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cid] s/FT_ALLOC/FT_QALLOC/ and clean up.
-
- * src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer.
- * src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load):
- Do not zero out the buffer.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer.
- * src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto.
-
-2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer.
- * src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto.
- * src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto.
-
-2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cache] Optimize SBit copying.
-
- * src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer.
- (ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/.
-
-2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer.
- * src/otvalid/otvmod.c (otv_load_table): Ditto.
-
-2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not
- zero out the buffer.
-
-2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
-
- * src/base/ftobjs.c (open_face_PS_from_sfnt_stream,
- Mac_Read_sfnt_Resource): Do not zero out the buffer.
- * src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.
- * src/base/ftrfork.c (raccess_make_file_name,
- raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto.
-
-2021-04-20 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cache] Restore SBit copying for unowned (BDF) bitmaps.
-
- * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore.
- (ftc_snode_load): Check ownership and copy unowned bitmaps.
-
-2021-04-19 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Return in 'COLR' v1 when layer pointer outside table
-
- * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return
- when paint pointer outside table.
- (read_paint): Add missing return when paint pointer outside table.
-
-2021-04-18 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cache] Switch to lazy SBit setting.
-
- * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed.
- (ftc_snode_load): Take the bitmap ownership instead of copying.
-
-2021-04-16 Daniel Welty <@danielwelty>
-
- * src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch.
-
-2021-04-16 Werner Lemberg <wl@gnu.org>
-
- * builds/unix/freetype2.m4: Fix help string formatting.
-
- The indented `dnl` macros inserted unwanted horizontal space.
-
- Problem reported by Ozkan Sezer <sezeroz@gmail.com>.
-
-2021-04-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Safeguard 'COLR' v1 layer extraction
-
- * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output
- layer pointer to iterator if it is outside the 'COLR' table.
- (read_paint): Do not attempt to read layers that are outside the
- table.
-
-2021-04-02 Ben Wagner <bungeman@chromium.org>
-
- [base] Complete `ft_glyphslot_clear`.
-
- * src/base/ftobjs.c (ft_glyphslot_clear): This function is intended
- to reset all the values of a glyph slot. However, it was not
- resetting the values of the advances and `glyph_index`. Reset the
- advances and `glyph_index` to zero.
-
-2021-04-02 Ben Wagner <bungeman@chromium.org>
-
- [truetype] Prevent glyph program state from persisting.
-
- `FDEF` instructions are specified as allowed only in 'prep' or
- 'fpgm'. FreeType has attempted to prevent their use in the glyph
- program, but they were still allowed in glyph programs if defined in
- a function defined in 'prep' or 'fpgm' and called from the glyph
- program.
-
- Similarly, `IDEF` instructions are specified not to be able to
- modify any existing instruction. FreeType has attempted to prevent
- their use in the glyph program, but they can still be used like
- `FDEF`.
-
- This change stores the initial bytecode range type and disallows the
- use of `FDEF` and `IDEF` while running the glyph program.
-
- Most other state is copied from the `TT_Size` into the execution
- context. However, it is possible for a glyph program to use `WS` to
- write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to
- write to the control value table.
-
- Allowing any change to the global state from the glyph program is
- problematic as the outlines of any given glyph may change based on
- the order the glyphs are loaded or even how many times they are
- loaded. There exist fonts that write to the storage area or the
- control value table in the glyph program, so their use should not be
- an error.
-
- Possible solutions to using these in the glyph program are
-
- * ignore the writes;
- * value-level copy on write, discard modified values when finished;
- * array-level copy on write, discard the copy when finished;
- * array-level copy up-front.
-
- Ignoring the writes may break otherwise good uses. A full copy
- up-front was implemented, but was quite heavy as even well behaved
- fonts required a full copy and the memory management that goes along
- with it. Value-level copy on write could use less memory but
- requires a great deal more record keeping and complexity. This
- change implements array-level copy on write. If any attempt is made
- to write to the control value table or the storage area when the
- initial bytecode range was in a glyph program, the relevant array
- will be copied to a designated storage area and the copy used for
- the rest of the glyph program's execution.
-
- * src/truetype/ttinterp.h (TT_ExecContextRec): New fields
- `iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`,
- `glyfStorage`, and `origStorage`.
-
- * src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle
- `exc->glyfCvt`.
- (Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use
- it.
- (Ins_WS): Handle `exc->glyfStorage`.
- (Ins_FDEF, Ins_IDEF): Updated.
- (TT_RunIns): Updated.
- (TT_Done_Context): Free 'glyf' CVT working and storage area.
- (TT_Load_Context): Fix/add casts.
-
- * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast.
-
-2021-03-30 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Check validity of pointer location of `read_color_line`.
-
- * src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch
- child table pointer early for all paint formats that compute a child
- table pointer.
- (read_color_line, read_paint): Updated.
- (tt_face_get_colorline_stops): Check `colr->table`.
-
-2021-03-28 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
-
- [docs] Update docwriter stylesheet for 1.3.1.
-
- This change is required to support docwriter 1.3.1.
-
- See
-
- https://gitlab.freedesktop.org/freetype/docwriter/-/merge_requests/101
-
- for more information.
-
- * docs/markdown/stylesheets/extra.css:
- (.wy-nav-content, .md-sidebar--secondary): Remove.
-
-2021-03-16 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later.
-
-2021-03-16 Ben Wagner <bungeman@google.com>
-
- [sfnt] Fix memory leak in png loading.
-
- Reported as
-
- https://bugs.chromium.org/p/chromium/issues/detail?id=1182552
-
- Memory is allocated and the pointer assigned to `rows` inside a
- 'setjmp' scope. This memory must be freed outside the 'setjmp'
- scope after a 'longjmp'. Since `rows` is a local and modified
- inside the 'setjmp' scope it must be marked volatile or it will have
- an indeterminate value after the 'longjmp'.
-
- * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`.
-
-2021-03-16 Christopher Degawa <ccom@randomderp.com>
-
- * CMakeLists.txt: Don't limit generation of 'pkg-config' file to UNIX.
-
- mingw-w64 uses the 'pkg-config' files but does not set UNIX.
-
-2021-03-11 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning.
-
-2021-03-13 Werner Lemberg <wl@gnu.org>
-
- Handle various VC++ compiler warnings.
-
- Fixes #1039.
-
- * src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside):
- Initialize `sigma`.
-
- * src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if
- function arguments are invalid.
- * src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast.
-
- * src/sfnt/sfwoff2.c (woff2_decompress)
- [!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`.
-
- * src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`.
-
-2021-03-11 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Reduce copying during integration phase.
-
- We now record `cover' and `area' directly into the linked list. This
- makes rendering faster by 10% or even more at larger sizes.
-
- * src/smooth/ftgrays.c (FT_INTEGRATE): Write directly.
- (gray_TWorker): Add direct cell reference and remove unused fields.
- (gray_set_cell): Consolidate the linked list management and pointers.
- (gray_convert_glyph, gray_convert_glyph_inner): Updated.
-
-2021-03-10 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro.
- (gray_render_line, gray_render_scanline): Use it.
-
-2021-03-09 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals.
-
- These produce faster or more optimizable code.
-
-2021-03-08 Tim-Philipp Müller <tim@centricular.com>
-
- [meson] Fix 'mmap' handling on Windows.
-
- * meson.build (ft2_sources): Always use `windows/ftsystem.c` on
- Windows unless mmap has been disabled.
-
- https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/5#note_829289
-
-2021-03-07 Tim-Philipp Müller <tim@centricular.com>
-
- [ci] Add basic support for Meson builds with MSVC on Windows.
-
- This adds meson jobs for VS2017 (x86 and x86_64).
-
- * .gitlab-ci.yml: New file.
-
-2021-03-07 Tim-Philipp Müller <tim@centricular.com>
-
- [meson] Add subproject fallbacks for 'libpng' and 'zlib'.
-
- * subprojects/libpng.wrap, subprojects/zlib.wrap: New files.
-
- * meson.build: Updated.
-
-2021-03-07 Xavier Claessens <xavier.claessens@collabora.com>
-
- [meson] Make it work with Windows.
-
- * meson.build: Do not process `ftconfig.h` when not using
- `ftconfig.h.in`.
-
- Fixes #1029.
-
-2021-02-25 Werner Lemberg <wl@gnu.org>
-
- [woff2] Fix memory leak.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28148
-
- * src/sfnt/sfwoff2.c (woff2_open_font): Reject fonts that have
- multiple tables with the same tag. While not explicitly forbidden
- in the OpenType specification, it is implicitly forbidden by
- describing a binary search algorithm for tables that only works
- reliably if table tags are unique.
-
-2021-02-22 Werner Lemberg <wl@gnu.org>
-
- * CMakeLists.txt: Update location of `LICENSE.TXT`.
-
- Fixes #1035.
-
-2021-02-19 Werner Lemberg <wl@gnu.org>
-
- * builds/unix/ax_pthread.m4: Update from 'autoconf-archive'.
-
- A bunch of fixes were added recently to its git repository.
-
-2021-02-17 Werner Lemberg <wl@gnu.org>
-
- [unix] Updates for autoconf 2.71.
-
- This fixes warnings reported by autoupdate.
-
- * builds/unix/ax_pthread.m4: Replace `as_echo` with `AS_ECHO`.
-
- * builds/unix/configure.raw: Remove obsolete `AC_HEADER_STDC`.
- Don't escape back quotes in messages for `AC_MSG_WARN`.
-
-2021-02-16 Werner Lemberg <wl@gnu.org>
-
- * builds/toplevel.mk: Fix previous commit.
-
- <top_level>: Use `TOP_DIR` in `wildcard` function.
- (check_out_submodule, copy_submodule): Move down to come after
- definition of `all` rule.
- Call `mkdir` conditionally.
-
-2021-02-16 Werner Lemberg <wl@gnu.org>
-
- * builds/toplevel.mk: Use rules for handling 'dlg'.
-
- Suggested by Alexei.
-
- (check_out_submodule, copy_submodule): New targets.
- <top-level>: Replace calls to `shell` with rules.
-
-2021-02-16 Werner Lemberg <wl@gnu.org>
-
- * builds/toplevel.mk: Avoid side effects of `shell`.
-
- We use a dummy variable to catch its output. Otherwise the `make`
- program is going to interpret the return value of `shell`; this can
- cause obscure warning or error messages or even be harmful.
-
-2021-02-16 Werner Lemberg <wl@gnu.org>
-
- Move 'dlg' submodule to `subprojects` directory.
-
- This is for future changes with Meson, which doesn't allow a
- different name for its `subprojects` directory. Having both a
- `submodules` and a `subprojects` directory is confusing.
-
- * .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR,
- DLG_SRC_DIR): Updated.
-
- * builds/toplevel.mk (<top-level>, do-dist),
- builds/windows/vc2010/script.bat: Updated.
-
- * src/tools/no-copyright: Updated.
-
-2021-02-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Update paint format values to support non-variable paints.
-
- * freetype.h (FT_PaintFormat): Update paint format identifiers after
- a specification change. The specification was updated to have
- sibling formats, variable and non-variable variants for each.
- Reflect that here.
-
- * sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as
- the non-variable formats no longer have them.
-
-2021-02-15 Daniel E <daniel.engberg.lists@pyret.net>
-
- * CMakeLists.txt: Improve 'bz2' support.
-
- Not all distributions such as FreeBSD provide a `.pc` file for
- '(lib)bz2' so follow autotools and add it to `Libs.private` instead.
-
-2021-02-13 Werner Lemberg <wl@gnu.org>
-
- * src/tools/update-copyright-year: Fix single-year entry handling.
-
- The fix from 2021-01-17 didn't cover the case where the year to be
- updated is identical to the current year.
-
-2021-02-13 Werner Lemberg <wl@gnu.org>
-
- Add new function `FT_Get_Transform`.
-
- See
-
- https://github.com/harfbuzz/harfbuzz/issues/2428
-
- for some reasons to introduce this function.
-
- * include/freetype/freetype.h, src/base/ftobjs.c (FT_Get_Transform):
- Implement it.
-
-2021-02-12 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- Decorate `qsort` callbacks with `cdecl`.
-
- * include/freetype/internal/compiler-macros.h (FT_COMPARE_DEF):
- Add new macro.
-
- * src/base/ftrfork.c, src/bdf/bdflib.c, src/gxvalid/gxvcommn.c,
- src/psaux/afmparse.c, src/psnames/psmodule.c, src/type1/t1afm.c,
- src/sfnt/sfwoff.c, src/sfnt/sfwoff2.c: Update `qsort` callbacks.
-
- Fixes #1026 when compiling FreeType with an unusual calling
- convention while the C library function `qsort` still expects
- `cdecl`.
-
-2021-02-10 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Implement 'COLR' v1 sweep gradients.
-
- * freetype.h (FT_PaintSweepGradient): Add `FT_PaintSweepGradient` to
- represent a 'COLR' v1 sweep gradient.
- Update format.
- (FT_PaintFormat): Update shifted paint formats.
- Sync with spec.
- * sfnt/ttcolr.c (read_paint): Logic to parse sweep gradients.
- Fix struct access in radial gradient implementation.
-
-2021-02-09 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Provide optional root transform for 'COLR' v1 glyph graph.
-
- * include/freetype/freetype.h (FT_Get_Color_Glyph_Paint):
- Additional function argument `root_transform` to control whether
- root transform should be returned.
- (FT_OpaquePaint): Additional tracking field to denote whether
- root transform is to be returned.
- * include/freetype/internal/sfnt.h
- (TT_Get_Color_Glyph_Paint_Func): Propagate additional argument.
- * src/base/ftobjs.c (FT_Get_Color_Glyph_Paint): Ditto.
- * src/sfnt/ttcolr.c (tt_face_get_colr_glyph_paint): Return root
- transform reflecting the size and tranform configured on
- `FT_Face`.
- (read_paint): Initialize and track status of insert_root_transform
- flag.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- * meson.build: s/freetype2_dep/freetype_dep/.
-
- Many projects (e.g., fontconfig, cairo) hardcode the `freetype_dep`
- variable name to use FreeType as subproject because that was the
- variable name in Centricular's Meson port of FreeType. While they
- should stop hardcoding that variable name, it does not cost us
- anything to keep using that name to ease transition.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- [meson] Fix handling of HarfBuzz library.
-
- * meson.build (harfbuzz_dep): Do not fall back to HarfBuzz by
- default.
-
- Otherwise it causes a dependency cycle:
-
- cairo => fontconfig => freetype2 => harfbuzz => cairo
-
- Meson will still fall back to HarfBuzz subprojects if the `harfbuzz`
- option is set to `enabled` instead of `auto` and a
- `subprojects/harfbuzz.wrap` file is present. In that case it is the
- responsibility of the main project to set the proper options on each
- subproject to break the dependency cycle.
-
- Fixes: #1028.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- [meson] Fix dependency lookup and generate `ftconfig.h`.
-
- - zlib: If not found on the system, meson can build it as a
- subproject. We thus never use the (outdated) zlib support that
- comes with FreeType. Doing so has the additional advantage that
- the zlib code can be shared with other projects like GLib if both
- are subprojects of an application.
- - harfbuzz: Build as a subproject if not found on the system.
- - 'QUESTION: What if the compiler doesn't support `-D` but uses `/D`
- instead as on Windows?' Answer: Meson translate arguments for us.
- - visibility: Replace self-made code with meson-specific solution.
-
- * meson.build (ft2_defines): Rewrite logic to set and handle it.
- (process_header_command): New variable, previously called
- `ftoption_command`.
- (ftoption_command, ftconfig_command): New variables.
- (zlib_option): Removed.
- (zlib_dep): New variable.
- (ft2_deps): Updated.
- (harfbuzz_dep): Updated.
- (ftconfig_h_in, ftconfig_h): New variables.
- (ft2_sources): Updated.
- (ft2_lib): Updated, handle visibility.
- (summary): Updted.
-
- * meson_options.txt (zlib): Updated.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- * meson.build: Fix resource compilation on Windows.
-
- This is copied from GStreamer's meson port of FreeType.
-
- (ft2_sources): Add both debug and resource file (the latter for
- Windows only).
- (ft2_debug_src): Removed.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- * meson.build: s/ft2_libtool_version/ft2_pkgconfig_version/.
-
- (freetype2_dep): Use it.
-
- `ft2_libtool_version` would be the shared library version, not the
- one we should use in file `freetype2.pc`.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- * meson.build: Use `meson.override_dependency`.
-
- This is a new meson mechanism to avoid other projects to hard-code
- the `freetype2_dep` variable name in their build definition. It
- also ensures that meson does not mix system and subproject versions
- of FreeType inside of the same project.
-
- Also remove outdated TODO because `declare_dependency` was already
- there.
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- * meson.build (bzip2_dep): Simplify.
-
- We remove `static:false` from `find_library('bz2')`.
-
- I don't know whether the previous code was a workaround for an old
- meson bug, but at least with version >=0.55.0 (which FreeType uses)
- it picks the shared library when both are available.
-
- File `freetype2.pc` still contains the full path to file `libbz2.so`
- instead of `-lbz2` – that we need to do this is a meson bug even
- present in the current version (0.57.0).
-
-2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
-
- * meson.build: Set project version.
-
-2021-02-04 Werner Lemberg <wl@gnu.org>
-
- [base] Fix Netpbm tracing message.
-
- * src/base/ftobjs.c (FT_Render_Glyph_Internal): Don't emit Netpbm
- warning if there is nothing to output.
-
-2021-02-04 Werner Lemberg <wl@gnu.org>
-
- * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.
-
- This ensures good logging output, with all lines having a proper
- prefix (if requested).
-
- This is a continuation of a similar patch from 2020-12-02, which
- missed some locations.
-
-2021-02-03 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * builds/unix/configure.raw [mmap]: Restore default path.
-
- Fixes #1023.
-
-2021-02-03 Werner Lemberg <wl@gnu.org>
-
- [psaux] Fix integer overflow.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30154
-
- * src/psaux/psblues.c (cf2_blues_capture): Use `SUB_INT32`.
-
-2021-02-02 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * builds/unix/configure.raw [mmap support]: Explicitly handle Windows.
-
- Fixes #1024.
-
-2021-01-31 Werner Lemberg <wl@gnu.org>
-
- * builds/unix/configure.raw [mmap support]: Correctly handle Windows.
-
- Fixes #1024.
-
-2021-01-31 Werner Lemberg <wl@gnu.org>
-
- * builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.
-
-2021-01-31 Werner Lemberg <wl@gnu.org>
-
- Always provide logging API.
-
- It's easier to have stubs if FT_DEBUG_LOGGING is undefined than to
- modify `ftexport.sym` conditionally.
-
- Problem reported by Alexei.
-
- * src/base/ftdebug.c: Include `ftlogging.h`.
- (FT_Trace_Set_Level, FT_Trace_Set_Default_Level, FT_Set_Log_Handler,
- FT_Set_Default_Log_Handler) [!FT_DEBUG_LOGGING]: Provide stubs.
-
-2021-01-31 Werner Lemberg <wl@gnu.org>
-
- * builds/unix/configure.raw: Fix typo.
-
- Bug introduced in Vincent's last commit bb33f03.
-
- Fixes issue #1021.
-
-2021-01-27 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/base/ftstroke.c (FT_Stroker_EndSubPath): Ignore tiny gaps.
-
- Fixes bug #1020.
-
-2021-01-27 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [stroker] Minor clean-up.
-
- * src/base/ftstroke.c (FT_Stroker_{ConicTo,CubicTo}): Reset the last
- line length.
- (FT_Stroker_EndSubPath): Call `ft_stroker_process_corner'.
-
-2021-01-27 Vincent Torri <vincent.torri@gmail.com>
-
- * builds/windows/ftsystem.c: Add shared memory support on Windows.
-
- * CMakeLists.txt (BASE_SRCS), builds/unix/configure.raw (FTSYS_SRC),
- builds/windows/vc2010/freetype.vcxproj,
- builds/windows/visualc/freetype.vcproj, meson.build (ft2_sources):
- Add it (conditionally).
-
-2021-01-23 Werner Lemberg <wl@gnu.org>
-
- Require HarfBuzz 2.0.0.
-
- This is needed to make commit f1f9705f9 work.
-
- * CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw
- (harfbuzz_pkg), meson.build (harfbuzz_dep): Updated.
-
-2021-01-22 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * autogen.sh: Absorb `version.sed'.
- * version.sed: Removed.
-
-2021-01-19 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * srd/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix return value.
-
-2021-01-15 Nikolaus Waxweiler <madigens@gmail.com>
-
- [afshaper] Fix hb_ot_tags_from_script deprecation warning.
-
- * autofit/afshaper.c (af_shaper_get_coverage): Copy the source code
- of the function as suggested in
- https://github.com/harfbuzz/harfbuzz/issues/2737 and adjust to handle
- at most three tags.
-
-2021-01-17 Werner Lemberg <wl@gnu.org>
-
- * src/tools/update-copyright-year: Fix single-year entry handling.
-
-2021-01-16 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * builds/unix/unixddef.mk: Remove the second DEVEL_DIR definition.
-
-2021-01-14 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Additional checks for 'colr' table presence.
-
- * sfnt/ttcolr.c (tt_face_get_colr_glyph_paint,
- tt_face_get_colorline_stops, tt_face_get_paint): Additional checks
- for whether colr table is present. Prevents crashes when these
- methods are called on non-COLR fonts.
-
-2021-01-13 Dominik Röttsches <drott@chromium.org>
-
- Add config option to test for 'COLR' v1 support in headers.
-
- * include/freetype/config/ftoption.h (TT_SUPPORT_COLRV1): New macro
- so that clients can test whether the FreeType checkout that they are
- building against supports the 'COLR' v1 API. This is intended to be
- a temporary solution until 'COLR' v1 support is released in a
- FreeType version and such a check can be made by using the version
- number instead.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- [base] Fill 'COLR' v1 API templates to make them work (#59703).
-
- * src/base/ftobjs.c (FT_Get_Color_Glyph_Paint, FT_Get_Paint_Layers,
- FT_Get_Paint, FT_Get_Colorline_Stops): Add basic sanity checks,
- check for existence of `FT_Face`, check arguments and delegate calls
- for the respective 'COLR' v1 API to the SFNT driver.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Register 'COLR' v1 API in driver (#59703).
-
- * include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_Paint_Func,
- TT_Get_Paint_Layers_Func, TT_Get_Colorline_Stops_Func,
- TT_Get_Paint_Func): New function pointer types.
- (SFNT_Interface): Add them.
- (FT_DEFINE_SFNT_INTERFACE): Updated.
-
- * src/sfnt/sfdriver.c (PUT_COLOR_LAYERS_V1): New macro.
- (sfnt_interface): Add new function pointers.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Add 'COLR' v1 API to retrieve color layers (#59703).
-
- * src/sfnt/ttcolr.c (tt_face_get_paint_layers): New function to get
- the layers of a `PaintColrLayers` table in the font, using an
- `FT_LayerIterator` from an `FT_PaintColrLayers` object retrieved via
- `tt_face_get_paint`.
-
- * src/sfnt/ttcolr.h: Updated.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Add 'COLR' v1 API to iterate color stops (#59703).
-
- * src/sfnt/ttcolr.c (tt_face_get_colorline_stops): New function to
- return the current `FT_ColorStop` object from `FT_ColorStopIterator`.
- Also increment the iterator.
-
- * src/sfnt/ttcolr.h: Updated.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Add API to get actual paint from `FT_OpaquePaint` (#59703).
-
- * src/sfnt/ttcolr.c (tt_face_get_paint): New function to resolve an
- `FT_OpaquePaint` paint reference into an `FT_COLR_Paint` object of a
- certain format, which contains the detailed information stored in a
- paint of the respective format.
- (read_paint): New function to provide the format specific parsing
- and to populate the data members of each specific `FT_COLR_Paint`
- subtype.
- (read_color_line): New function to parse retrieved color line
- information into an `FT_ColorLine` object, which has information
- about the color line extend mode as well as an
- `FT_ColorStopIterator` object.
-
- * src/sfnt/ttcolr.h: Updated.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- [sfnt] Add API to retrieve 'COLR' v1 root paint (#59703).
-
- * src/sfnt/ttcolr.c (BaseGlyphV1Record): New structure.
- (tt_face_load_colr): Handle version 1 table header.
- (find_base_glyph_v1_record): New auxiliary function.
- (tt_face_get_colr_glyph_paint): New function to find the root
- `FT_OpaquePaint` object for a given glyph ID.
-
- * src/sfnt/ttcolr.h: Updated.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- Add new methods required for 'COLR' v1 to public API (#59703).
-
- * include/freetype/freetype.h (FT_Get_Color_Glyph_Paint): New method
- for retrieving the root paint object for a color glyph by specifying
- a glyph ID.
- (FT_Get_Paint_Layers): New method for retrieving the layers of a
- `PaintColorGlyph`.
- (FT_Get_ColorLine_Stops): New method for retrieving the stops of a
- color.
- (FT_Get_Paint): New method for resolving an `FT_OpaquePaint` into an
- `FT_COLR_Paint` object.
-
-2020-12-16 Dominik Röttsches <drott@chromium.org>
-
- Add types required for 'COLR' v1 to public API (#59703).
-
- * include/freetype/freetype.h (FT_PaintFormat, FT_ColorStopIterator,
- FT_ColorIndex, FT_ColorStop, FT_PaintExtend, FT_ColorLine,
- FT_Affine23, FT_CompositeMode, FT_OpaquePaint, FT_PaintColrLayers,
- FT_PaintSolid, FT_PaintLinearGradient, FT_PaintRadialGradient,
- FT_PaintGlyph, FT_PaintColrGlyph, FT_PaintTransformed,
- FT_PaintTranslate, FT_PaintRotate, FT_PaintSkew, FT_PaintComposite,
- FT_COLR_Paint): Adding structs and enum to represent paint format,
- color stop information, gradient extend information, structs to
- reference paint offsets, and to define transforms and compositions.
- Adding a union type to represent the union of the structs,
- distinguished by `FT_PaintFormat`.
-
-2021-01-10 Werner Lemberg <wl@gnu.org>
-
- * builds/*: s/BUILD_DIR/PLATFORM_DIR/.
-
- The old variable name caused confusion.
-
-2021-01-08 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [builds] Revert `FTMODULE_H' changes.
-
- * builds/toplevel.mk, builds/freetype.mk: Revert changes.
-
-2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [builds/windows] Fix up DLG build with VC++.
-
- * builds/windows/vc2010/script.bat: Copy headers to include/.
- * builds/windows/vc2010/freetype.vcxproj: Remove DLG paths.
-
-2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [builds] Relocate `FTMODULE_H'.
-
- * builds/toplevel.mk: Place `FTMODULE_H' in include/.
- * builds/freetype.mk: Simplify included path.
-
-2021-01-07 Werner Lemberg <wl@gnu.org>
-
- Fix ABI incompatibility.
-
- * include/freetype/ftimage.h (FT_Pixel_Mode): Don't insert
- `FT_PIXEL_MODE_GRAY16' but append it.
-
- * src/base/ftobjs.c (pixel_modes): Updated.
-
-2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [dlg] Move the headers to include/dlg to simplify their use.
-
- * autogen.sh, builds/toplevel.mk: Copy headers to include/dlg.
- * builds/freetype.mk, builds/windows/vc2010/freetype.vcxproj:
- Simplify included path.
- * include/freetype/internal/ftdebug.h: Simplify #include.
- * src/dlg/rules.mk, .gitignore: Updated.
-
-2021-01-06 Werner Lemberg <wl@gnu.org>
-
- * meson.build: Add summary.
-
- Based on a patch from Vincent Torri <vincent.torri@gmail.com>.
-
-2021-01-06 Torsten Hilbrich <emacs.nolkaf@hilbrich.tk>
-
- * meson.build: Fix 'png' build option (#59458).
-
- Without this patch, 'png' is always required.
-
-2021-01-04 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [builds/windows] Add SDF to VC2010 project.
-
- * builds/windows/vc2010/freetype.vcxproj: Updated;
- AfterBuild conveniences.
-
-2020-12-26 Werner Lemberg <wl@gnu.org>
-
- [sdf] Use 'counter-clockwise', not 'anti-clockwise'.
-
- We prefer US nomenclature.
-
- * src/sdf/ftsdf.c (SDF_Contour_Orientation):
- s/SDF_ORIENTATION-ACW/SDF_ORIENTATION_CCW/.
- Update all users.
-
-2020-12-26 Werner Lemberg <wl@gnu.org>
-
- * src/base/ftobjs.c (pixel_modes): Updated.
-
-2020-12-26 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Remove custom memory tracker.
-
- The internal FreeType memory tracker is sufficient.
-
- * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER, SDF_MemoryUser,
- sdf_alloc, sdf_free, SDF_ALLOC, SDF_FREE,
- SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,
- SDF_MEMORY_TRACKER_DONE): Removed.
-
- s/SDF_ALLOC/FT_ALLOC/.
- s/SDF_FREE/FT_FREE/.
-
- Other updates.
-
-2020-12-24 Werner Lemberg <wl@gnu.org>
-
- [sdf] Fix `make multi`.
-
- * src/sdf/ftsdf.c: Include `ftoutln.h`.
-
-2020-12-24 Werner Lemberg <wl@gnu.org>
-
- [sdf] Fix tracing.
-
- * include/freetype/internal.fttrace.h: Add 'bsdf' component.
-
- * src/sdf/ftbsdf.c, src/sdf/ftsdf.c (FT_COMPONENT): Define.
-
-2020-08-21 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add debugging function.
-
- * src/sdf/ftsdf.c (sdf_shape_dump): New function.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add 'bsdf' renderer to 'sdf' module.
-
- * src/sdf/ftsdfrend.c (ft_bsdf_render): New function.
-
- (ft_bitmap_sdf_renderer_class): New structure.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add interface functions for the 'bsdf' rasterizer.
-
- * src/sdf/ftsdf.c (bsdf_raster_new, bsdf_raster_reset,
- bsdf_raster_set_mode, bsdf_raster_render, bsdf_raster_done): New
- functions.
-
- (ft_bitmap_sdf_raster): New variable.
-
- * src/sdf/ftsdf.h: Updated.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add function to copy SDF data into output bitmap.
-
- * src/sdf/ftbsdf.c (finalize_sdf): New function.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add '8-point sequential Euclidean distance mapping' algorithm.
-
- * src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass,
- edt8): New functions.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add function to copy source bitmap to distance map.
-
- * src/sdf/ftbsdf.c (bsdf_init_distance_map): New function.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add functions to compute pixel edge distances.
-
- * src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge):
- New functions.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add function to find edge pixels in a grid of alpha values.
-
- * src/sdf/ftbsdf.c (bsdf_is_edge): New function.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add essential structures for the 'bsdf' rasterizer.
-
- * src/sdf/ftbsdf.c (ONE): New macro.
- (BSDF_TRaster, ED, BSDF_Worker): New structures.
- (zero_ed): New constant.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add 'sdf' module to non-gnumake build systems.
-
- * include/freetype/config/ftmodule.h: Add both the 'sdf' and 'bsdf'
- renderers to the list of modules.
-
- * CMakeLists.txt (BASE_SRCS): Add 'sdf' single-object module.
-
-2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Added basic overlapping contour support.
-
- * src/sdf/ftsdf.c (sdf_generate_with_overlaps): New function.
- (sdf_raster_render): Enable it.
-
-2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add build infrastructure.
-
- * src/sdf/module.mk, src/sdf/rules.mk: New files.
-
- * src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration.
-
- * include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition
- for the 'sdf' module.
-
- * include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace
- definition for the `sdf' module.
-
- * modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of
- rasterizers.
-
-2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add interface functions for the 'sdf' rasterizer.
-
- * src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset,
- sdf_raster_set_mode, sdf_raster_render, sdf_raster_done): New
- functions.
- (ft_sdf_raster): New structure.
-
-2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add subdivision and bounding box optimization.
-
- * src/sdf/ftsdf.c (sdf_generate_bounding_box): New function, which
- is an optimized version of `sdf_generate`.
- (sdf_generate_subdivision): New function.
-
-2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add function to generate SDF.
-
- * src/sdf/ftsdf.c (sdf_generate): New function, currently disabled.
- This is a proof-of-concept implementation: It doesn't use any
- optimization, it simply checks all grid points against all contours.
-
-2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add functions to get shortest distance from any edge/contour.
-
- * src/sdf/ftsdf.c (sdf_edge_get_min_distance): New function.
- (sdf_contour_get_min_distance): New function, currently disabled.
-
-2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add shortest distance finding functions.
-
- * src/sdf/ftsdf.c (get_min_distance_line, get_min_distance_conic,
- get_min_distance_cubic): New functions. Note that
- `get_min_distance_conic` comes with two implementations (using an
- analytical and an iterative method, to be controlled with the
- `USE_NEWTON_FOR_CONIC` macro).
-
-2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add function to resolve corner distances.
-
- * src/sdf/ftsdf.c (resolve_corner): New function.
-
-2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add essential math functions.
-
- * src/sdf/ftsdf.c (cube_root, arc_cos) [!USE_NEWTON_FOR_CONIC]: New
- auxiliary functions.
-
- * src/sdf/ftsdf.c (solve_quadratic_equation, solve_cubic_equation)
- [!USE_NEWTON_FOR_CONIC]: New functions.
-
-2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add utility functions for contours.
-
- * src/sdf/ftsdf.c (get_control_box, get_contour_orientation): New
- functions.
- (split_conic, split_cubic, split_sdf_conic, split_sdf_cubic,
- split_sdf_shape): New functions.
-
-2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add functions to decompose `FT_Outline`.
-
- * src/sdf/ftsdf.c (sdf_move_to, sdf_line_to, sdf_conic_to,
- sdf_cubic_to): New auxiliary decomposition functions.
- (sdf_compose_funcs): New structure.
- (sdf_outline_decompose): New function.
-
-2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Structs, enums, macros, and functions for 'sdf' rasterizer.
-
- * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER)
- [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New macros.
- (SDF_MemoryUser) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New
- struct for memory usage tracing.
- (sdf_alloc, sdf_free) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New
- functions for memory usage tracing.
-
- (SDF_ALLOC, SDF_FREE): New macros for memory management.
- (SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,
- SDF_MEMORY_TRACKER_DONE): New macros to set up memory usage tracing.
-
- (USE_NEWTON_FOR_CONIC, MAX_NEWTON_DIVISIONS, MAX_NEWTON_STEPS,
- CORNER_CHECK_EPSILON, CG_DIMEN): New configuration macros for
- controlling the process of finding the shortest distance.
-
- (MUL_26D6, VEC_26D6_DOT): New auxiliary macros.
-
- (SDF_TRaster, SDF_Edge, SDF_Contour, SDF_Shape, SDF_Signed_Distance,
- SDF_Params): New structs for setting up SDF data.
- (SDF_Edge_Type, SDF_Contour_Orientation): New enums for SDF data.
-
- (zero_vector, null_edge, null_contour, null_shape, max_sdf): Useful
- constants.
-
- (sdf_edge_new, sdf_edge_done, sdf_contour_new, sdf_contour_done,
- sdf_shape_new, sdf_shape_done): New constructors and destructors.
-
-2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add raster parameters structure.
-
- * src/sdf/ftsdf.h (SDF_Raster_Params): New structure.
-
- * src/sdf/sdf.c: Include source files in order to make a single
- object of the module.
-
-2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add 'sdf' renderer.
-
- * src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface
- functions.
- Also add functions to set and get properties.
-
-2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add common elements for 'sdf' and 'bsdf' renderers.
-
- * src/sdf/ftsdfrend.h (SDF_Rendere_Module, ft_sdf_renderer_class,
- ft_bitmap_sdf_renderer_class): New structures.
-
- * src/sdf/ftsdfcommon.h (DEFAULT_SPREAD, MIN_SPREAD_MAX_SPREAD,
- USE_SQUARED_DISTANCES): New macros.
- (FT_INT_26D6, FT_INT_16D16, FT_26D6_16D16): New macros.
- (FT_CALL, VECTOR_LENGTH_16D16): New macros.
- (FT_26D6_Vec, FT_16D16_Vec, FT_16D16, FT_26D6, FT_6D10, FT_CBox):
- New typedefs.
- (square_root): New macro.
-
- * src/sdf/ftsdferrs.h: Add module error setup.
-
-2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [sdf] Add files for new 'sdf' module.
-
- Here is a breakdown of what the files will contain.
-
- * src/sdf/ftsdfrend.c, src/sdf/ftsdfrend.h: The 'sdf' and 'bsdf'
- renderers.
-
- * src/sdf/ftsdf.c, src/sdf/ftsdf.h: The rasterizer for the 'sdf'
- renderer.
- * src/sdf/ftbsdf.c, src/sdf/ftbsdf.h: The rasterizer for the 'bsdf'
- renderer.
-
- * src/sdf/ftsdfcommon.h: Commmon properties and functions for both
- rasterizers.
- * src/sdf/ftsdferrs.h: Common error defines.
-
- * src/sdf/sdf.c: For building a single object of the entire module.
-
-2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [base] Allow renderers of different formats.
-
- * src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the
- glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`. The forthcoming
- 'bsdf' renderer will require bitmaps for processing.
-
- * src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove
- renderer's glyph format check before adding and removing them. The
- 'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.
-
-2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
-
- Add data types required for the forthcoming 'sdf' module.
-
- * include/freetype/freetype.h (FT_Render_Mode): Add new render mode
- `FT_RENDER_MODE_SDF`, which will be used to generate SDF.
-
- * include/freetype/ftimage.h (FT_Pixel_Mode): Add new pixel mode
- `FT_PIXEL_MODE_GRAY16`, which will be the output of the 'sdf'
- module.
- (FT_RASTER_FLAG_SDF): New raster flag to be used internally by the
- 'sdf' module.
-
- * include/freetype/fttypes.h (FT_F6Dot10): New data type.
-
-2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
-
- [base] Allow renderers of different formats.
-
- * src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the
- glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`. The forthcoming
- 'bsdf' renderer will require bitmaps for processing.
-
- * src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove
- renderer's glyph format check before adding and removing them. The
- 'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.
-
-2020-12-23 Werner Lemberg <wl@gnu.org>
-
- * builds/windows/detect.mk (COPY): Make it work with `shell`.
-
- Without this patch, we get the error
-
- builds/toplevel.mk:127: *** missing separator. Stop.
-
- Reported by Anuj, with a solution from Alexei.
-
-2020-12-23 Ignacio Casal Quinteiro <qignacio@amazon.com>
-
- * meson.build (ft2_defines): Fix builds on Windows.
-
-2020-12-18 Tatsuyuki Ishi <ishitatsuyuki@gmail.com>
-
- [autofit] Fix double division in stem darkening.
-
- The old code used to divide the darkening amount by em_ratio twice,
- leading to unnecessarily bold stems on certain fonts with higher
- units per em (e.g. Inter). This patch fixes it.
-
- The return value of af_loader_compute_darkening was also changed to
- use 16.16 fixed point to get rid of a redundant truncation operation.
- This should slightly improve the precision, although it's still
- bottlenecked by the emboldening function, which uses 26.6 fixed point.
-
- * src/autofit/afloader.[ch]
- (af_loader_compute_darkening): Return FT_Fixed.
- (af_loader_embolden_glyph_in_slot): Revise calculations.
-
-2020-12-17 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): New public macro.
-
- The driver name is needed for `FT_Property_Set' and `FT_Property_Get'.
-
-2020-12-16 Chris Liddell <chris.liddell@artifex.com>
-
- [truetype] Fix incremental metrics (#59503).
-
- * src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph):
- Previously, the code would populate the phantom points before
- calling the `get_glyph_metrics` callback. For formats like PCL XL
- format 1, class 2 downloaded fonts (where metrics are removed from
- the TTF header), this causes problems when the hinting program uses
- the phantom points (misplaced and distorted glyphs) due to the
- metrics being unset (all zeros).
- (tt_get_metrics_incr_overrides): Renamed to...
- (tt_get_metrics_incremental): ... this. Updated caller
-
- * include/freetype/ftincrem.h: Update the documentation to make it
- clearer that `get_glyph_metrics` is to retrieve metrics from a
- non-standard source, but *not* for the purpose of imposing custom
- metrics.
-
-2020-12-14 Werner Lemberg <wl@gnu.org>
-
- [type42] Pacify static analysis tools (#59682).
-
- * src/type42/t42objs.c (T42_Size_Init, T42_GlyphSlot_Init): Avoid
- warnings about uninitialized variables.
-
-2020-12-07 Werner Lemberg <wl@gnu.org>
-
- * builds/unix/configure.raw: Don't set `FT_DEBUG_LOGGING`.
-
- All debug options are handled exclusively in `ftoption.h`.
-
-2020-12-07 Werner Lemberg <wl@gnu.org>
-
- * src/*: More fixes for using a '\n' in `FT_TRACE` and `FT_ERROR`.
-
-2020-12-07 Werner Lemberg <wl@gnu.org>
-
- */*: s/FT_LOGGING/FT_DEBUG_LOGGING/.
-
-2020-12-05 Werner Lemberg <wl@gnu.org>
-
- * builds/toplevel.mk (do-dist): Remove `submodules` directory.
-
-2020-12-02 Werner Lemberg <wl@gnu.org>
-
- * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.
-
- This ensures good logging output, with all lines having a proper
- prefix (if requested).
-
-2020-12-02 Werner Lemberg <wl@gnu.org>
-
- [base] Don't close 'stderr' after logging.
-
- * src/base/ftdebug.c, builds/windows/ftdebug.c (ft_logging_deinit):
- Fix it.
-
-2020-12-02 Werner Lemberg <wl@gnu.org>
-
- * submodules/dlg: Updated to commit 9f0c8b22.
-
-2020-12-02 Werner Lemberg <wl@gnu.org>
-
- * src/bdf/bdflib.c: Fix `-Wformat` warning.
-
-2020-12-02 Werner Lemberg <wl@gnu.org>
-
- Improve setup for 'dlg' library.
-
- * autogen.sh (copy_submodule_file), builds/toplevel.mk: Redirect
- stderr to `/dev/null`.
-
- * builds/toplevel.mk: Move code block to handle 'dlg' stuff into
- `check_platform` conditional.
- Also fix wildcard expressions for guarding `git submodule` commands.
- Also make file copying work with non-Unix platforms (untested).
-
-2020-12-01 Werner Lemberg <wl@gnu.org>
-
- [build] Use gcc (and clang) in C99 mode.
-
- Other compilers are unchanged.
-
- * builds/compiler/gcc-dev.mk, builds/compiler/gcc.mk (ANSIFLAGS):
- s/-ansi/-std=c99/.
-
- * builds/freetype.mk (FT_CFLAGS): Remove `-std=c99`.
-
- * builds/unix/configure.raw: Handle C99.
- Remove no longer needed test for gcc 4.6 and earlier.
-
-2020-12-01 Werner Lemberg <wl@gnu.org>
-
- [dlg] Fix compiler warnings.
-
- * src/dlg/dlgwrap.c: Duplicate some feature test macros from
- `dlg.c`, which must come first before loading standard headers. For
- example, `freetype.h` loads `stdio.h` if compiled in debug mode.
-
-2020-12-01 Werner Lemberg <wl@gnu.org>
-
- * src/type42/t42parse.c: Fix `-Wformat` warnings.
-
-2020-12-01 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [builds/unix] Check for 'pthread' library.
-
- * builds/unix/ax_pthread.m4: New file, taken from 'autoconf-archive'
- git repository.
-
- * builds/unix/configure.raw: Check for 'pthread'; also check whether
- it works.
-
-2020-12-01 Werner Lemberg <wl@gnu.org>
-
- [base] Implement vertical alignment of log printing.
-
- Based on a patch by Priyesh.
-
- * include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):
- New macro.
-
- * src/base/ftdebug.c, builds/windows/ftdebug.c (ft_log_handler):
- Print logs after a fixed width to handle different lengths of
- `FT_COMPONENT` entries.
- Use `ft_strrchr` to check for final newline character.
-
-2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- Update logging related documentation.
-
- * docs/DEBUG: Updates related to `FT_LOGGING`.
-
- * README.git: Updates related to logging.
-
-2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- * src/*: Fix `-Wformat` warnings.
-
-2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [builds/windows] Changes to build 'dlg' with FreeType on Windows.
-
- We only support Visual C++ 2010 and newer.
-
- * builds/windows/vc2010/script.bat: New windows batch file to copy
- necessary 'dlg' files from `submodules/dlg` to `src/dlg`. This file
- is used as a pre-built event in Visual C++.
-
- * builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.
-
- * builds/windows/vc2010/freetype.vcxproj.filters: Add
- `src/dlgwrap.c`.
-
- * builds/windows/vc2010/freetype.vcxproj
- (AdditionalIncludeDirectories): Add include files of dlg for 'Debug'
- and 'Debug Static' configurations on both 'x64' and 'win32'
- platforms.
- (PreprocessorDefinitions): Add `FT_LOGGING` for 'Debug' and 'Debug
- Static' configurations on both 'x64' and 'win32' platforms.
- Add `DLG_STATIC' for 'Debug' configuration on 'x64' and 'win32'
- platforms.
- (DisableLanguageExtensions): We need to disable the `/Za` option
- when building 'dlg' with FreeType as 'dlg' strictly follows the C99
- standard. Visual C++ produces behaves unexpectedly when
- compiling a C99 file with `/Za` option enabled.
-
-2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [base] Add public API to change log handling function.
-
- * include/freetype/ftlogging.h (FT_Custom_Log_Handler): New function
- typedef to store the custom callback logging function.
- (FT_Set_Log_Handler, FT_Set_Default_Log_Handler): New functions to
- set and reset custom log handler.
-
- * include/freetype/internal/ftdebug.h (custom_output_handler): New
- variable to support a custom callback logging function.
- (FT_Logging_Callback): A new function typedef to print log using
- custom callback logging function, which is set using
- `FT_Set_Log_Handler`.
- (FT_Log): Use it.
-
- * src/base/ftdebug.c (FT_Set_Log_Handler,
- FT_Set_Default_Log_Handler, FT_Logging_Callback): Add function
- definitions.
-
-2020-11-28 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [base] Add public API to change the levels of tracing components.
-
- * include/freetype/ftlogging.h: New header file.
-
- * include/freetype/internal/ftdebug.h [FT_LOGGING]: Include
- `ftlogging.h`.
-
- * src/base/ftdebug.c (ft_custom_trace_level): New variable.
- (ft_debug_init): Update to support change of levels of tracing
- components of FreeType at run-time.
- (FT_Trace_Set_Level): New function to change the levels of tracing
- components at run-time.
- (FT_Trace_Set_Default_Level): New function to reset the levels of
- tracing components back to default.
-
-2020-11-28 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [base] Updates to print timestamp and name of `FT_COMPONENT` in logs.
-
- * include/freetype/internal/ftdebug.h (FT_LOGGING_TAG,
- FT_LOGGING_TAG_): New macros to resolve the value of `FT_COMPONENT'
- into a string.
- (ft_add_tag, ft_remove_tag): New functions to add and remove dlg tags.
-
- * src/base/ftdebug.c: Add new variables to control the logging of
- timestamp and name of `FT_COMPONENT` along with actual logs.
- (ft_add_tag, ft_remove_tag): Add function definitions.
- (ft_log_handler): Updates to print timestamp and name of
- `FT_COMPONENT`.
- (ft_debug_init) [FT_LOGGING]: Users can now control the logging of
- timestamp and name of `FT_COMPONENT` by adding tags in the
- `FT2_DEBUG` environment variable.
-
-2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [base] Add functions and variables to print logs to a file.
-
- * include/freetype/internal/ftdebug.h: Added dlg's header files.
- (FT_LOG): New macro to redirect trace logs to dlg's API's whenever
- `FT_LOGGING' is defined.
- (ft_logging_init, ft_logging_deinit): New functions to handle
- initialization and uninitialization of logging related variables.
- (ft_log_handler): New function to handle logs of FreeType.
-
- * src/base/ftdebug.c: Add necessary logging related variables.
- (ft_logging_init, ft_logging_deinit, ft_log_handler): Add function
- definitions.
-
- * src/base/ftinit.c (FT_Init_FreeType) [FT_LOGGING]: Call
- `ft_logging_init`.
- (FT_Done_FreeType) [FT_LOGGING]: Call `ft_logging_deinit`.
-
- * src/base/ftobjs.c (FT_New_Library): Call `ft_debug_init` only if
- `FT_LOGGING` is not defined.
-
-2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- [builds] Necessary changes to make 'dlg' compile.
-
- * autogen.sh (copy_submodule_files): New script to copy all the
- necessary source and include files from `submodules/dlg` to
- `src/dlg`.
-
- * src/dlg/dlgwrap.c: New wrapper file for `src/dlg.c`. It enables
- the build of 'dlg' if the `FT_LOGGING` macro is defined.
-
- * src/dlg/rules.mk: New sub-Makefile.
-
- * builds/freetype.mk (DLG_DIR): New variable to include the
- header files of the 'dlg' library.
- (INCLUDES): Add `DLG_DIR`.
- (FT_CFLAGS): Add `-std=c99' flag.
- Include `src/dlg/rules.mk` file to build 'dlg' library.
- (OBJ_S, OBJ_M): Add `DLG_OBJS_M` and `DLG_OBJS_S`.
-
- * builds/toplevel.mk: For builds directly from the git repository
- we need to copy files from `submodule/dlg` to `src/dlg`.
-
- * include/freetype/config/ftoption.h, devel/ftoption.h (FT_LOGGING):
- New macro to enable or disable the logging facility in FreeType.
-
-2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- * .gitmodules: Add 'dlg' library's git repository as submodule.
-
-2020-12-01 Werner Lemberg <wl@gnu.org>
-
- * src/tools/chktrcmp.py (trace_use_pat): Update to current use.
-
-2020-11-20 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [cff,cid,type1] Demote old engine for lack of CFF2.
-
- * src/cff/cffobjs.c (cff_driver_init): Always default to Adobe engine.
- * src/cid/cidobjs.c (cid_driver_init): Ditto.
- * src/type1/t1objs.c (T1_Driver_Init): Ditto.
-
-2020-11-09 Werner Lemberg <wl@gnu.org>
-
- * src/type42/t42parse.c (t42_parse_sfnts): More tracing messages.
-
-2020-11-04 Werner Lemberg <wl@gnu.org>
-
- * meson.build: Fix .pc file generation.
-
- For backwards compatibility we need the libtool version, not the .so
- number.
-
- Reported by Nikolaus.
-
-2020-10-28 Werner Lemberg <wl@gnu.org>
-
- [truetype] Minor update to forthcoming OpenType 1.8.4 standard.
-
- * src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Limit
- size of `regionCount`.
-
-2020-10-26 Werner Lemberg <wl@gnu.org>
-
- * meson.build: Fix 'harfbuzz' and 'brotli' build options (#59347).
-
- Without this patch, 'harfbuzz' and 'brotli' are always required.
-
- Patch submitted anonymously in Savannah bug report.
-
-2020-10-23 Ben Wagner <bungeman@google.com>
-
- * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak (#59322).
-
- The issue is that `rows` is allocated but will not be freed in the
- event that the call to `png_read_image` fails and calls `longjmp`.
-
-2020-10-20 Werner Lemberg <wl@gnu.org>
-
- * Version 2.10.4 released.
- ==========================
-
-
- Tag sources with `VER-2-10-4'.
-
- * docs/VERSION.TXT: Add entry for version 2.10.4.
- * docs/CHANGES: Updated.
-
- * README, src/base/ftver.rc, builds/windows/vc2010/index.html,
- builds/windows/visualc/index.html,
- builds/windows/visualce/index.html,
- builds/wince/vc2005-ce/index.html,
- builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
- s/2.10.3/2.10.4/, s/2103/2104/.
-
- * include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
-
- * builds/unix/configure.raw (version_info): Set to 23:4:17.
- * CMakeLists.txt (VERSION_PATCH): Set to 4.
-
-2020-10-19 Werner Lemberg <wl@gnu.org>
-
- [sfnt] Fix heap buffer overflow (#59308).
-
- This is CVE-2020-15999.
-
- * src/sfnt/pngshim.c (Load_SBit_Png): Test bitmap size earlier.
-
-2020-10-17 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/tt{colr,cpal}.c: Fix signedness warnings from VC++.
-
-2020-10-17 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/sfnt/sfwoff2.c (Read255UShort): Tweak types to please VC++.
-
-2020-10-10 Werner Lemberg <wl@gnu.org>
-
- * Version 2.10.3 released.
- ==========================
-
-
- Tag sources with `VER-2-10-3'.
-
- * docs/VERSION.TXT: Add entry for version 2.10.3.
-
- * README, src/base/ftver.rc, builds/windows/vc2010/index.html,
- builds/windows/visualc/index.html,
- builds/windows/visualce/index.html,
- builds/wince/vc2005-ce/index.html,
- builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
- s/2.10.2/2.10.3/, s/2102/2103/.
-
- * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
-
- * builds/unix/configure.raw (version_info): Set to 23:3:17.
- * CMakeLists.txt (VERSION_PATCH): Set to 3.
-
-2020-09-25 Werner Lemberg <wl@gnu.org>
-
- [autofit] Synchronize with ttfautohint.
-
- This corresponds to the following commits in the ttfautohint git
- repository:
-
- bb6842bd3bd437b7b4a7921b0376c860f5e73d18 Typo, formatting.
- d5c91ddb1cb310257a3dfe9a8e20e1fc51335faa Add Medefaidrin script.
-
- * src/autofit/afblue.dat: Add blue zone data for Medefaidrin.
- * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
-
- * src/autofit/afscript.h: Add Medefaidrin standard characters.
-
- * src/autofit/afranges.c, src/autofit/afstyles.h: Add Medefaidrin
- data.
-
-2020-09-25 Werner Lemberg <wl@gnu.org>
-
- Move `scripts/make_distribution_archives.py` to `src/tools`.
-
- * scr/tools/scripts/make_distribution_archives.py: (_TOP_DIR,
- _SCRIPT_DIR): Updated to new location.
- (main): s/shutils.copyfile/shutils.copy/ to preserve file
- permissions.
- (main): Prefix source file paths with `git_dir` while copying files
- to allow calls of the script from other places than the top-level
- directory.
-
-2020-09-24 Werner Lemberg <wl@gnu.org>
-
- * src/cff/cffgload.c (cff_slot_load): Scale `vertBearingY`.
-
- Towards the end of the the function there is a call to
- `FT_Outline_Get_CBox` that retrieves the glyph bbox in scaled units.
- That sets `horiBearing{X,Y}` and `vertBearingX` but `vertBearingY`
- is left alone, and is not scaled.
-
- Patch from Eric Muller <emuller@amazon.com>.
-
-2020-09-24 Werner Lemberg <wl@gnu.org>
-
- * src/base/ftobjs.c (FT_Load_Glyph): Trace glyph metrics.
-
-2020-09-22 Werner Lemberg <wl@gnu.org>
-
- [meson] Move auxiliary scripts to `builds/meson`.
-
- Suggested by Alexei.
-
- * scripts/*.py: Move meson scripts to...
- * builds/meson/*.py: ... this new location.
-
- * meson.build: Updated.
-
-2020-09-21 David Turner <david@freetype.org>
-
- Add python script for building tarballs.
-
- * scripts/make_distribution_archives.py: New file.
-
- This standalone Python script should be equivalent to running `make
- dist` with the Make-based build system, with the following minor
- differences:
-
- - Since `make distclean` doesn't always clean up `objs/` properly,
- `make dist` archives may contain some stale binaries like
- `objs/.libs/libfreetype.so.6` or others.
-
- - `config.guess` and `config.sub` are not updated unless option
- `--gnu-config-dir=DIR` is used to specify the location of these
- files.
-
- - Some bits of the auto-generated reference documentation may
- appear in slightly different order, probably due to issues related
- to mkdocs and docwriter.
-
- As an example, the call
-
- scripts/make_distribution_archives.py /tmp/freetype2-dist
-
- creates the following files under `/tmp/freetype2-dist`:
-
- freetype-<version>.tar.gz
- freetype-<version>.tar.xz
- ft<winversion>.zip
-
-2020-09-21 Werner Lemberg <wl@gnu.org>
-
- * scripts/extract_freetype_version.py: Fix regex typos.
-
-2020-09-21 David Turner <david@freetype.org>
-
- Add Meson build project file.
-
- Example usage:
-
- # Configure Meson build in directory `build-meson` to generate
- # release binaries comparable to to the ones from the
- # autotools/make build system.
- meson setup build-meson \
- --prefix=/usr/local \
- --buildtype=debugoptimized \
- --strip \
- -Db_ndebug=true
-
- # After configuring the Meson build with the above command,
- # compile and install to `/usr/local/`; this includes a pkg-config
- # file.
- ninja -C build-meson install
-
- # Alternatively, compile and install to `/tmp/aa/usr/local/...`
- # for packaging.
- DESTDIR=/tmp/aa ninja -C build-meson install
-
- # Generate documentation under `build-meson/docs`.
- ninja -C build-meson docs
-
- Library size comparison for stripped `libfreetype.so` generated by
- all three build systems:
-
- - Default build (autotools + libtool): 712 KiB
- - CMake build (RelWithDebInfo): 712 KiB
- - Meson build: 712 KiB
-
-
- * meson.build: New top-level Meson build file for the library.
-
- * meson_options.txt: New file. It holds user-selectable options for
- the build, which can be printed with `meson configure`, and selected
- at `meson setup` or `meson --reconfigure` time with
- `-D<option>=<value>`.
-
- * scripts/parse_modules_cfg.py: A script invoked by `meson.build` to
- parse `modules.cfg` and extract important information out of it
- (i.e., the list of modules).
-
- * scripts/process_ftoption_h.py: New script invoked by `meson.build`
- to process the original `ftoption.h` file. It enables or disables
- configuration macro variables based on the available dependencies.
- This is similar to what other build systems are using (i.e., Meson's
- `configure_file()` command is not used here).
-
- * scripts/extract_freetype_version.py: New script invoked by
- `meson.build` to extract the FreeType version number from
- `<freetype/freetype.h>`.
-
- * scripts/extract_libtool_version.py: New script invoked by
- `meson.build` to extract the libtool `revision_info` data from
- `builds/unix/configure.raw`, and to generate the corresponding
- shared library suffix.
-
- * scripts/generate_reference_docs.py: New script invoked by
- `meson.build` to generate the FreeType 2 reference documentation
- (using the `docwriter` and `mkdocs` packages, which must be already
- installed).
-
-2020-09-11 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Improve the second pass (#58373).
-
- Besides dropout control the second horizontal sweep is supposed to
- clean up straight horizontal edges that are mishandled by the first
- vertical sweep when a line passes through pixel centers. This line
- would present as perfectly aligned span edges in the second sweep.
-
- * src/raster/ftraster.c (Horizontal_Sweep_Span): Replace the old
- implementation with a better one focusing on aligned span edges only.
-
-2020-09-08 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Tune SMART macro (#58352).
-
- Windows seems to perform smart dropout control at 26.6 precision.
- To mimick Windows independent of increased precision, we need to tweak
- the macro so that some close calls break down rather than up.
-
- * src/raster/ftraster.c (SMART): Tweak the macro.
-
-2020-09-08 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [raster] Introduce SMART macro.
-
- * src/raster/ftraster.c (SMART): New macro for smart dropout rounding.
- (Verstical_Sweep_Drop, Horizontal_Sweep_Drop): Use it.
-
-2020-09-03 Boris Dalstein <dalboris@gmail.com>
-
- [build] Make CMake install basic version information.
-
- * CMakeLists.txt: Do it.
-
-2020-09-02 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [truetype] Reduce Infinality footprint (cont'd).
-
- * src/truetype/ttinterp.c (Ins_DELTAP): Shrink variable scope.
- (Ins_SHPIX, Ins_MIRP): Revise if-logic.
-
-2020-09-02 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [truetype] Reduce Infinality footprint.
-
- * src/truetype/ttinterp.c (Ins_SHPIX, Ins_MSIRP, Ins_MIAP, Ins_MDRP,
- Ins_MIRP): Shrink variable scopes and consolidate ifdefs.
-
-2020-09-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [truetype] Refactor compensation color.
-
- * src/truetype/ttinterp.h (TT_Round_Func): Change the last argument.
- * src/truetype/ttinterp.c (Ins_ROUND, Ins_NROUND, Ins_MDAP, Ins_MIAP,
- Ins_MDRP, Ins_MIRP): Move compensation retrieval from here...
- (Round_*): ... to here.
- * src/truetype/ttobjs.c (tt_size_init_bytecode): Reserve zero
- compensation at color index 3.
-
-2020-08-28 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Don't set target in direct mode.
-
- * src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Remove assignment.
- (ft_smooth_raster_lcd) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Ditto.
-
-2020-08-25 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Limit width.
-
- Segmentation fault reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24729
-
-2020-08-22 Werner Lemberg <wl@gnu.org>
-
- * src/truetype/ttgload.c (TT_Get_VMetrics): Add tracing message.
-
-2020-08-05 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [truetype] Retain OVERLAP_SIMPLE and OVERLAP_COMPOUND.
-
- For glyphs with OVERLAP_SIMPLE or OVERLAP_COMPOUND, set
- FT_OUTLINE_OVERLAP to render them with direct oversampling, which
- mitigates artifacts (see 3bb512bc9f62).
-
- * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Redefine to rhyme
- with OVERLAP_SIMPLE.
- * src/base/ftgloadr.c (FT_GlyphLoader_Rewind): Reset outline flags.
- * src/truetype/ttgload.c
- (TT_Load_Simple_Glyph): Retain OVERLAP_SIMPLE.
- (load_truetype_glyph): Retain OVERLAP_COMPOUND.
-
-2020-08-04 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * src/truetype/ttgload.c (TT_Load_Glyph): More tracing.
-
-2020-07-28 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- Hide internal functions with SunPro.
-
- * include/freetype/internal/compiler-macros.h
- (FT_INTERNAL_FUNCTION_ATTRIBUTE) <__SUNPRO_C>: Define as __hidden.
-
-2020-07-28 Anuj Verma <anujv@iitbhilai.ac.in>
-
- Fix static compilation with Visual C.
-
- * include/freetype/internal/compiler-macros.h
- (FT_INTERNAL_FUNCTION_ATTRIBUTE) <_WIN32>: Define as empty.
-
-2020-07-28 Priyesh Kumar <priyeshkkumar@gmail.com>
-
- Fix `-Wformat' compiler warnings.
-
- * src/*: Fix format specifiers.
-
- * builds/unix/ftsystem.c (FT_Stream_Open): Ditto.
-
-2020-07-25 Werner Lemberg <wl@gnu.org>
-
- Fix `-Wformat' compiler warnings.
-
- Problem reported by Priyesh kumar <priyeshkkumar@gmail.com>
-
- * src/base/ftoutln.c (FT_Outline_Decompose): Fix number of arguments
- to tracing macro.
-
- * src/bdf/bdfdrivr.c (bdf_cmap_char_next, bdf_get_bdf_property):
- Ditto.
-
- * src/cache/ftcbasic.c (ftc_basic_family_get_count): Ditto.
- Reformulate message.
-
- * src/pcf/pcfdrivr.c (pcf_get_bdf_property): Ditto.
-
- * src/sfnt/sfwoff2.c (woff2_open_font): Ditto.
- Trace table offset, too.
-
- * src/truetype/ttgxvar.c (ft_var_apply_tuple): Ditto.
-
-2020-07-23 Werner Lemberg <wl@gnu.org>
-
- * src/sfnt/sfwoff2.c (woff2_decompress): Fix compiler warning.
-
- Reported by Hin-Tak.
-
-2020-07-12 Werner Lemberg <wl@gnu.org>
-
- * builds/unix/configure.raw: Fix inclusion of `ftoption.h'.
-
-2020-07-07 Werner Lemberg <wl@gnu.org>
-
- Fix clang warnings.
-
- * include/freetype/internal/autohint.h
- (FT_DECLARE_AUTOHINTER_INTERFACE): New macro.
- * src/autofit/afmodule.h: Use it to declare
- `af_autofitter_interface'.
-
- * include/freetype/internal/ftobjs.h (FT_DECLARE_GLYPH): New macro.
- * src/base/ftbase.h: Use it to declare `ft_bitmap_glyph_class' and
- `ft_outline_glyph_class'.
-
- * src/base/ftglyph.c: Include `ftbase.h'.
-
- * src/cff/cffparse.c (cff_parser_run): Fix type of `t2_size'.
-
- * src/pcf/pcfdrivr.c (pcf_cmap_char_next): Fix type of `result'.
-
- * src/psaux/psauxmod.c (psaux_module_class): Use `FT_DEFINE_MODULE'.
- * src/psaux/psauxmod.h: Declare `afm_parser_funcs',
- `t1_cmap_classes', `cff_decoder_funcs', and `psaux_module_class'.
-
- * src/pshinter/pshmod.c: Include `pshmod.h'.
-
- * src/sfnt/sfwoff2.c (ROUND4, WRITE_SHORT): Fix implicit sign
- conversion.
- (compute_ULong_sum): Fix return type.
- Fix implicit sign conversion.
- (store_points): Fix type of `last_flag', `repeat_count', and `flag'.
- Use casts to avoid warnings.
- (reconstruct_glyf): Fix implicit sign conversion.
- Use cast to avoid warning.
- (get_x_mins): Fix implicit sign conversion.
- * src/sfnt/ttcmap.c: Undef `TTCMAPCITEM'.
- * src/sfnt/ttcmap.h: Define `TTCMAPCITEM' and include `ttcmapc.h' to
- declare cmap classes.
-
- * src/smooth/ftsmooth.c (ft_smooth_overlap_spans): Use cast.
-
- * src/truetype/ttinterp.c (Ins_MIAP): Fix typo.
-
-2020-07-07 David Turner <david@freetype.org>
-
- [build] Really fix multi and C++ builds.
-
- The following builds were still failing due to previous changes:
-
- make multi
- make multi CC="c++"
- make CC="c++"
-
- This patch fixes the issues, which were missing includes to get the
- right macro definitions in multi-build mode.
-
- Also, `FT_UNUSED' is actually used by third-party code, so move it
- back to `public-macros.h' to avoid breaking it.
-
- * include/freetype/config/public-macros.h (FT_EXPORT): Remove
- special definition for C++.
- (FT_UNUSED): Define here instead of...
- * include/freetype/config/compiler-macros.h: ... here.
- (FT_FUNCTION_DECLARATION): Remove special definition for C++.
- (FT_LOCAL_ARRAY_DEF): Fix definition.
-
- * src/cache/ftccback.h, src/lzw/ftzopen.h, src/gxvalid/gxvmort.h,
- src/gxvalid/gxvmorx.h: Add `FT_BEGIN_HEADER' and `FT_END_HEADER'.
-
-2020-07-06 David Turner <david@freetype.org>
-
- [build] Fix multi and C++ builds.
-
- The following builds were failing due to previous changes:
-
- make multi
- make multi CC="c++"
-
- * include/freetype/config/ftconfig.h: Remove `FT_END_HEADER'.
-
- * include/freetype/config/ftheader.h (FT_BEGIN_HEADER,
- FT_END_HEADER): Protect against redefinition.
-
- * src/cache/ftccache.h, src/cache/ftcmru.h, src/pcf/pcfutil.h,
- src/psaux/pserror.h, src/psaux/psft.h, src/psaux/psstack.h,
- src/sfnt/woff2tags.h: Include `compiler-macros.h'.
-
- * src/sfnt/woff2tags.c: Include `woff2tags.h'.
-
-2020-07-06 Werner Lemberg <wl@gnu.org>
-
- [psaux] Improve `t1_decoder_parse_metrics' (#58646).
-
- * src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy
- corresponding code from old engine's `t1_decoder_parse_charstrings'
- function to handle `op_callsubr' and `op_return'.
-
-2020-07-05 David Turner <david@freetype.org>
-
- [build] Improve visibility support of library function names.
-
- * include/freetype/config/public-macros.h
- (FT_PUBLIC_FUNCTION_ATTRIBUTE): New macro to tag functions as
- public (and thus exportable).
- (FT_EXPORT): Use it.
-
- * include/freetype/config/compiler-macros.h
- (FT_INTERNAL_FUNCTION_ATTRIBUTE): New macro to tag functions as
- internal to the library (and thus hidden). Note that on ELF
- systems, all internal functions have hidden visibility, which avoids
- the need to enforce this when invoking the compiler (e.g., with an
- option like `-fvisibility=hidden').
-
- (FT_FUNCTION_DECLARATION, FT_FUNCTION_DEFINITION): New base macros
- to deal with C and C++ linkage issues at the same time.
-
- (FT_LOCAL, FT_LOCAL_DEF, FT_LOCAL_ARRAY, FT_LOCAL_ARRAY_DEF,
- FT_BASE, FT_BASE_DEF, FT_EXPORT_VAR, FT_BASE_CALLBACK,
- FT_BASE_CALLBACK_DEF): Redefined using new macros.
-
-2020-07-05 David Turner <david@freetype.org>
-
- [build] Split off more stuff from `ftconfig.h'.
-
- * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
- include/freetype/config/ftconfig.h: Split off macro definitions
- required by the FreeType API headers to...
- * include/freetype/config/public-macros.h: ...this new file.
-
- * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
- include/freetype/config/ftconfig.h: Split off macro definitions used
- by the library but not to be exposed to clients to...
- * include/freetype/config/compiler-macros.h: ...this new file.
-
- * include/freetype/internal/*.h, src/raster/ftraster.h: Include
- `compiler-macros.h' where needed.
-
-2020-07-05 David Turner <david@freetype.org>
-
- [build] Move mac support code to `mac-support.h'.
-
- * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
- include/freetype/config/ftconfig.h: Split off mac-specific stuff
- to...
- * include/freetype/config/mac-support.h: ...this new file.
-
- * CMakeLists.txt, builds/unix/configure.raw: Remove `/undef ->
- #undef' string replacement; the affected code is no longer part of
- the `ftconfig.h' template.
-
-2020-07-05 David Turner <david@freetype.org>
-
- [build] Put integer type definitions into `integer-types.h'.
-
- Refactor some of the `ftconfig.h' headers and template to move the
- definition of the FreeType integer types (e.g., `FT_Int16') to a
- common header file `freetype/config/integer-types.h'.
-
- * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
- include/freetype/config/ftconfig.h: Split off integer type
- definition stuff to...
- * include/freetype/config/integer-types.h: ...this new file.
-
- * builds/unix/ftconfig.h.in: Control the definition of
- `FT_SIZEOF_INT' and `FT_SIZEOF_LONG' with macro
- `FT_USE_AUTOCONF_SIZEOF_TYPES'. If these are not defined, auto
- detection happens in `integer-types.h' as usual based on `INTXX_MAX'
- values. Otherwise the autoconf-detected values are used.
-
- * builds/unix/configure.raw (CPPFLAGS): Don't include path to
- `config' directory. Instead, ...
- (FT_CONFIG_STANDARD_LIBRARY_H): Use complete path.
-
-2020-07-05 David Turner <david@freetype.org>
-
- [build] Rename `build/unix/ftconfig.in' to `ftconfig.h.in'.
-
- Since we are no longer limited to 8.3 file names, it is simpler to
- follow the usual conventions for template files.
-
- * builds/unix/ftconfig.in: Renamed to...
- * builds/unix/ftconfig.h.in: ...this.
-
- * CMakeLists.txt, builds/unix/configure.raw: Updated.
-
-2020-07-03 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Introduce direct oversampling for overlaps.
-
- This implements oversampling to mitigate artifacts in pixels partially
- covered by overlapping contours. It turns out that the 4x4
- oversampling is sufficient but, at least, quadruples the rendering
- time. The outline has to set FT_OUTLINE_OVERLAP to use this method.
-
- * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): New flag.
- * src/smooth/ftsmooth.c (ft_smooth_render): Check it to...
- (ft_smooth_raster_overlap): ... inflate outline and set up direct
- rendering for oversampling with...
- (ft_smooth_overlap_spans): ... new span function that integrates them.
-
-2020-07-03 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Use direct rendering mode in Harmony.
-
- Instead of rendering 3 bitmaps side by side and reshuffling, we use
- direct rendering to deliver the bitmaps on each third byte.
-
- * src/smooth/ftsmooth.c (ft_smooth_raster_lcd)
- [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Set up direct mode with...
- (ft_smooth_lcd_spans): ... new span function.
-
-2020-07-03 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Separate LCD paths from gray rendering.
-
- This makes `ft_smooth_render' a lot smaller and easier to follow. It
- also cleanly separates Harmony and ClearType-style LCD rendering
- algorithms. Now I only wish to move LCD filtering and geometry from
- FT_Library to FT_Renderer.
-
- * src/smooth/ftsmooth.c (ft_smooth_render): Move LCD code from here...
- (ft_smooth_raster_lcd, ft_smooth_raster_lcdv): ... to here.
- [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Reorganize #ifdef's.
-
-2020-06-20 Sebastian Rasmussen <sebras@gmail.com>
-
- [cff] Fix handling of `style_name == NULL' (#58630).
-
- * src/cff/cffobjs.c (cff_face_init): If a call to `cff_strcpy' fails
- by returning NULL in `cff_face_init', `remove_style' is still
- called. This means that the NULL pointer is dereferenced, causing a
- crash.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [cff] Fix another two memory leaks (#58629).
-
- * src/cff/cffobjs.c (cff_size_init): If a call to `funcs->create'
- fails to allocate one of the `internal->subfont' variables, make
- sure to free `internal->topfont' and any successfully allocated
- subfonts.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [psaux] Fix memory leak (#58626).
-
- * src/psaux/psstack.c (cf2_stack_init): If `cf2_stack_init' fails to
- allocate the stack, return error early.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [base] Fix memory leak (#58624).
-
- * src/base/ftobjs.c (FT_New_Size): Avoid trying to free
- `size->internal' unless `size' has been allocated. This mistake
- appeared in the fix for issue #58611.
-
-2020-06-19 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [base] Rework d1180b5f9598 until further notice.
-
- * src/base/ftoutln.c (FT_Outline_Get_Orientation): Reject large
- outlines.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [cff, cid] Fix segfaults in case of error (#58621).
-
- * src/cff/cffobjs.c (cff_slot_done), src/cid/cidobjs.c
- (cid_slot_done): If `ft_glyphslot_init' fails to allocate
- `internal', then the class' `done_slot' callback (called by
- `ft_glyphslot_done') must not dereference the pointer to `internal'.
-
-2020-06-19 Werner Lemberg <wl@gnu.org>
-
- [base] Fix UBSAN error.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23166
-
- * src/base/ftoutln.c (FT_Outline_Get_Orientation): Avoid values
- larger than 32 bits.
-
-2020-06-19 Werner Lemberg <wl@gnu.org>
-
- [woff2] Fix segfault.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23402
-
- * src/sfnt/sfwoff2.c (get_x_mins): Check whether `loca' table
- exists.
-
-2020-06-19 Stephen McDowell <svenevs.dev@gmail.com>
-
- [sfnt] Support Intel compilers.
-
- * src/sfnt/pngshim.c (premultiply_data): Intel compilers do not
- currently support `__builtin_shuffle'.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [base] Fix memory leak (#58611).
-
- * src/base/ftobjs.c (FT_New_Size): When the call to `clazz->init_size'
- fails, make sure to free `size->internal'.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [cff] Fix memory leak (#58610).
-
- * src/cff/cffobjs.c (cff_size_init): When the call to
- `funcs->create' fails, make sure to free `internal'.
-
-2020-06-19 Werner Lemberg <wl@gnu.org>
-
- * src/cff/cffload.c (cff_index_get_pointers): Rename `t' to `tbl'.
-
-2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
-
- [cff] Free table upon error allocating other data (#58609).
-
- * src/cff/cffload.c (cff_index_get_pointers): When new_bytes fails
- to allocate, make sure to free the table. Do the same for both
- allocations if there is a later error.
-
-2020-06-13 Werner Lemberg <wl@gnu.org>
-
- Remove redundant inclusion of `ft2build.h'.
-
- * */*: Remove `#include <ft2build.h>' where possible.
-
- * include/freetype/freetype.h: Remove cpp error about missing
- inclusion of `ft2build.h'.
-
-2020-06-08 David Turner <david@freetype.org>
-
- Make macros for header file names optional.
-
- We no longer have to take care of the 8.3 file name limit; this
- allows us (a) to introduce longer, meaningful file names, and (b) to
- avoid macro names in `#include' lines altogether since some
- compilers (most notably Visual C++) doesn't support this properly.
-
- */*: Replace
-
- #include FOO_H
-
- with
-
- #include <freetype/foo.h>
-
- or something similar. Also update the documentation.
-
-2020-06-02 Werner Lemberg <wl@gnu.org>
-
- * src/sfnt/ttcmap.c (tt_face_build_cmaps): Trace number of cmaps.
-
-2020-05-18 David Turner <david@freetype.org>
-
- Remove obsolete HAVE_STDINT_H probing macro.
-
- This macro was updated by the unix configure script and the
- `CMakeLists.txt' one, but is never used in the source tree (nor is
- <stdint.h> included anywhere).
-
- * CMakeLists.txt, builds/unix/ftconfig.in: Don't handle
- `HAVE_STDINT_H'.
-
-2020-05-18 David Turner <david@freetype.org>
-
- Remove Jamfile files from the tree.
-
- These have not been used in a very, very long time, so better remove
- them. A corresponding patch will be submitted to the
- `freetype2-demos' repository.
-
- * src/Jamfile, src/*/Jamfile, Jamrules: Delete.
-
-2020-05-12 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Turn on LCD filtering during FreeType initialization.
-
- * src/smooth/ftsmooth.c (ft_smooth_init): Enable LCD filtering.
-
- * include/freetype/ftlcdfil.h: Document it, remove patent warnings.
- * include/freetype/freetype.h (FT_Render_Mode): Updated.
- * include/freetype/config/ftoption.h, devel/ftoption.h
- [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Do not mention patents.
-
-2020-05-11 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [smooth] Stop using dedicated LCD modules and classes.
-
- The LCD modules were never truly independent. They mostly served as
- a way to disable patented LCD rendering, which is no longer necessary.
- The `smooth' module now handles LCD modes as well.
-
- * src/smooth/ftsmooth.c (ft_smooth_lcd_renderer_class.
- ft_smooth_lcdv_renderer_class): Deleted.
- (ft_render_smooth): Reworked from `ft_render_smooth_generic'.
- * src/smooth/ftsmooth.h: Remove dedicated LCD classes.
- * src/smooth/module.mk: Remove dedicated LCD modules.
- * include/freetype/config/ftmodule.h: Ditto.
- * builds/amiga/include/config/ftmodule.h: Ditto.
- * include/freetype/ftmodapi.h: Do not mention LCD modules.
-
-2020-05-09 Werner Lemberg <wl@gnu.org>
-
- * Version 2.10.2 released.
- ==========================
-
-
- Tag sources with `VER-2-10-2'.
-
- * docs/VERSION.TXT: Add entry for version 2.10.2.
-
- * README, Jamfile (RefDoc), src/base/ftver.rc,
- builds/windows/vc2010/index.html, builds/windows/visualc/index.html,
- builds/windows/visualce/index.html,
- builds/wince/vc2005-ce/index.html,
- builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
- s/2.10.1/2.10.2/, s/2101/2102/.
-
- * include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
-
- * builds/unix/configure.raw (version_info): Set to 23:2:17.
- * CMakeLists.txt (VERSION_PATCH): Set to 2.
-
- * docs/CHANGES: Updated.
-
-2020-05-08 Jakub Alba <jalba@vewd.com>
-
- * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#58319).
-
- The font that exceeds the old limit is Icono Regular, version
- 1.00000.
-
-2020-05-03 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * builds/freetype.mk: Refactor for readability.
-
-2020-05-02 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [builds] Clean up Windows CE project files.
-
- Remove version from filenames that caused a lot of polution in the
- release process. Use VERSIONINFO resource instead.
-
- * builds/wince/vc2005-ce/freetype.vcproj,
- builds/wince/vc2008-ce/freetype.vcproj,
- builds/windows/visualce/freetype.vcproj,
- builds/windows/visualce/freetype.dsp: s/2101//g, but add `ftver.rc'.
- * builds/wince/vc2008-ce/index.html,
- builds/wince/vc2005-ce/index.html,
- builds/windows/visualce/index.html: s/2101//g.
-
-2020-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- * devel/ft2build.h: Override FT_CONFIG_MODULES_H here as well.
-
-2020-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
-
- [builds/unix] Consolidate marco overrides (for the demos to see them).
-
- * builds/unix/unix-cc.in (FT_CONFIG_MODULES_H, FT_CONFIG_OPTIONS_H):
- Override them here...
- * builds/freetype.mk: ... instead of here.
-
-2020-04-08 Werner Lemberg <wl@gnu.org>
-
- Allow setting `CC' in Unix build (#58051).
-
- * builds/unix/unix-cc.in (CC): Use `override'. The command line
- value of `CC' (if any) is stored already in `CCraw'.
-
-2020-04-04 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
-
- [woff2] Return if single stream operation fails.
-
- * src/sfnt/sfwoff2.c (get_x_mins): Do it.
-
- * src/sfnt/woff2tags.c: Remove unused include.
-
-2020-03-22 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
-
- [docs] Fix building docs if `srcdir' != `builddir'.
-
- `docs/reference/*' was moved one directory up in commit 237fed6.
-
- * builds/unix/unix-def.in (PIP): Remove variable.
-
- * configure: Create `docs' directory and copy assets from
- `docs/markdown'.
-
- * docs/README: Output directory is `reference'.
-
-2020-03-21 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
-
- [docwriter] Drop support for Python < 3.5.
-
- Python versions < 3.5 have reached end-of-life and as such, no
- security or bug fixes will be provided for those versions. See
-
- https://devguide.python.org/#status-of-python-branches
-
- for more information.
-
- * Jamfile (RefDoc): Add `site' parameter.
-
- * builds/detect.mk (std_setup): Update Python version requirement.
-
- * builds/freetype.mk (refdoc-venv): Use pip as `python -m pip'.
-
- * builds/unix/ax_compare_version.m4,
- builds/unix/ax_prog_python_version.m4: Macros to detect Python
- version. New files.
-
- * builds/unix/configure.raw: Check for Python >= 3.5 and remove
- check for `pip'.
-
- * docs/CHANGES, docs/INSTALL.GNU, docs/README: Updated.
-
-2020-03-02 Moazin Khatti <moazinkhatri@gmail.com>
-
- [gzip] Support `gzip' encoded header conditionally.
-
- In order to support `gzip' encoded header the call to
- `inflateInit2' was modified in commit 6a92b1fadde26477a9179.
- However, this code breaks with the outdated internal version
- of zlib. This is a temporary fix to conditionally support
- `gzip' encoded header whenever a system installation of zlib
- is being used.
-
- Problem report in
-
- https://lists.nongnu.org/archive/html/freetype-devel/2020-02/msg00023.html
-
- * src/gzip/ftgzip.c (FT_Gzip_Uncompress): Change the the call to
- `inflateInit2' depending on whether the system installation is
- being used or the internal copy.
-
-2020-02-29 Ben Wagner <bungeman@google.com>
-
- [truetype] Fix state of `FT_Face' for buggy `gvar' tables (#57923).
-
- By resetting the blend as implemented with this commit fonts with
- invalid `gvar' tables may keep calling into `ft_var_load_gvar' from
- `tt_set_mm_blend' and failing, but the font was invalid anyway and
- we want to keep seeing the failure in `tt_set_mm_blend'.
-
- * src/truetype/ttgxvar.c (ft_var_load_gvar): Calculate length of
- offset array once.
- Allocate arrays after `FT_FRAME_ENTER' (extra check before
- allocating and avoid needing to free array later if error entering
- frame).
- Always call `FT_FRAME_EXIT'.
- Consistently set counts immediately after array initialized.
- Reset the blend (particularly `blend->glyphoffsets') on failure.
-
-2020-03-01 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
-
- [docs] Update docwriter stylesheet.
-
- This change is required to support docwriter 1.2.1.
-
- See
-
- https://github.com/freetype/docwriter/issues/36
-
- for more information.
-
- * docs/markdown/stylesheets/extra.css:
- (.md-typeset code) -> (.md-typeset pre>code)
- (pre) -> (pre>code)
- (p, .md-typeset p, h4): Remove commented styles.
- (table.index): Remove unused styles.
-
-2020-02-28 Ben Wagner <bungeman@google.com>
-
- [truetype] Add better checks for loading `gvar' table (#57905).
-
- * src/truetype/ttgxvar.c (ft_var_load_gvar): Delay settings of any
- `blend->xxxcount' values until the corresponding data has been
- checked.
- Also do some sanitizing to avoid a too early exit.
-
- (TT_Vary_Apply_Glyph_Deltas): Improve tracing message.
-
-2020-02-27 Werner Lemberg <wl@gnu.org>
-
- Make `FT_HAS_*' and `FT_IS_*' really return true (#57906).
-
- * include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Implement it.
-
-2020-02-25 Dominik Röttsches <drott@chromium.org>
-
- Fix for CFF space glyph regression (#57541).
-
- * src/psaux/psft.c (cf2_decoder_parse_substrings): Replace early-out
- with FT_OFFSET.
-
-2020-02-22 Werner Lemberg <wl@gnu.org>
-
- [woff2] Fix font table access.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20778
-
- * src/sfnt/sfwoff2.c (get_x_mins): Explicitly check for presence of
- `head' table, which might not have been processed yet.
-
-2020-02-21 Werner Lemberg <wl@gnu.org>
-
- [psaux] Make `t1_decoder_parse_metrics' handle `op_div' (#57519).
-
- * src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy
- corresponding code from old engine's `t1_decoder_parse_charstrings'
- function.
-
-2020-02-19 Nikolaus Waxweiler <nikolaus.waxweiler@daltonmaag.com>
-
- [autofit] Add support for Hanifi Rohingya script.
-
- * src/autofit/afblue.dat: Add blue zone data for Hanifi Rohingya.
- * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
-
- * src/autofit/afscript.h: Add Hanifi Rohingya standard character.
-
- * src/autofit/afranges.c, src/autofit/afstyles.h: Add Hanifi
- Rohingya data.
-
-2020-02-19 Werner Lemberg <wl@gnu.org>
-
- Require HarfBuzz 1.8.
-
- * builds/unix/configure.raw, CMakeLists.txt: Request HarfBuzz 1.8.0
- or newer.
-
- We are going to add auto-hinter support for Hanifi Rohingya, which
- was introduced in Unicode 11.0.
-
-2020-02-12 Werner Lemberg <wl@gnu.org>
-
- * src/sfnt/ttcmap.c (tt_face_build_cmaps): Ignore version (#57708).
-
-2020-02-04 Werner Lemberg <wl@gnu.org>
-
- * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#57732).
-
- The font that exceeds the old limit is Constantine, version 1.001.
-
-2020-01-04 Werner Lemberg <wl@gnu.org>
-
- [base] Fix `FREETYPE_PROPERTIES=type1:hinting-engine=adobe`.
-
- * src/base/ftpsprop.c (ps_property_set) [hinting-engine]: Avoid an
- incorrect return value that caused a warning. The function did the
- right thing, though.
-
-2020-01-03 Werner Lemberg <wl@gnu.org>
-
- [woff2] Fix memory leaks and a runtime warning.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19773
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18101
-
- * src/sfnt/sfwoff2.c (compute_ULong_sum): Add missing cast.
- (reconstruct_hmtx): Add missing deallocation calls.
-
-2020-01-02 Dominik Röttsches <drott@chromium.org>
-
- [truetype] Fix UBSan warning on offset to nullptr (#57501).
-
- * src/truetype/ttinterp.c (Ins_CALL): Fail if `exc->FDefs' is null.
-
-2019-12-31 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
-
- [woff2] Allow bitmap-only fonts (#57394).
-
- * src/sfnt/sfwoff2.c (reconstruct_font): Fix test for `glyf' and
- `loca' tables.
-
-2019-12-21 Hugh McMaster <hugh.mcmaster@outlook.com>
-
- [docs] (2/2) Fix generation of API documentation (#56745).
-
- Creating the API Reference in the (new) `reference' sub-directory is
- consistent with other documentation sub-topics, such as `design',
- `glyphs' and `tutorial'.
-
- This patch fixes broken hyperlinks in the documentation pointing to
- and from the API Reference. It also allows web assets to load from
- their relative paths.
-
- * builds/freetype.mk (DOC_DIR): Adjust.
- (refdoc, refdoc-venv): Add `--site' argument.
-
- * builds/toplevel.mk (do-dist): Updated.
-
-2019-12-21 Hugh McMaster <hugh.mcmaster@outlook.com>
-
- [docs] (1/2) Move static web assets (#56745).
-
- * docs/reference/*: Move ...
- * docs: ... one directory up.
-
-2019-12-21 Dominik Röttsches <drott@chromium.org>
-
- Fix more UBSan warnings on adding offset to nullptr (#57432).
-
- * src/truetype/ttinterp.c (Ins_LOOPCALL), src/psaux/psft.c
- (cf2_initLocalRegionBuffer): Use `FT_OFFSET'.
-
-2019-12-16 Werner Lemberg <wl@gnu.org>
-
- [truetype] Fix UBSan warnings on adding offsets to nullptr.
-
- Reported as
-
- https://bugs.chromium.org/p/chromium/issues/detail?id=1032152
-
- * src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Use `FT_OFFSET'.
-
-2019-12-14 Werner Lemberg <wl@gnu.org>
-
- [truetype] Fix integer overflow.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19305
-
- * src/truetype/ttinterp.c (Ins_MIRP): Use `ADD_LONG'.
-
-2019-12-13 Werner Lemberg <wl@gnu.org>
-
- Another bunch of UBSan warnings on adding offsets to nullptr.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19427
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19433
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19441
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19451
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19452
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19457
-
- * src/autofit/aflatin.c (af_latin_hints_compute_segments,
- af_latin_hints_compute_edges): Use `FT_OFFSET'.
-
- * src/base/ftstream.c (FT_Stream_EnterFrame): Use `FT_OFFSET'.
-
- * src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Exit early
- if there is no charstring.
-
- * src/psaux/psobjs.c (t1_decrypt): Use `FT_OFFSET'.
-
- * src/smooth/ftsmooth.c (ft_smooth_render_generic): Exit early for
- zero bitmap dimensions.
-
-2019-12-09 Dominik Röttsches <drott@chromium.org>
-
- Fix more UBSan warnings on adding offset to nullptr (#57384).
-
- * src/smooth/ftsmooth.c (ft_smooth_render_generic),
- src/psaux/psobjs.c (ps_table_add): Use `FT_OFFSET'.
-
-2019-12-05 Werner Lemberg <wl@gnu.org>
-
- * src/truetype/ttinterp.c (TT_RunIns): Use `FT_OFFSET'.
-
- Reported as
-
- https://bugs.chromium.org/p/chromium/issues/detail?id=1030614
-
-2019-12-03 Werner Lemberg <wl@gnu.org>
-
- More nullptr offset UBSan warnings (#57331, #57347).
-
- * src/autofit/afcjk.c (af_cjk_hints_compute_segments),
- src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c
- (Ins_UNKNOWN): Use `FT_OFFSET'.
-
-2019-11-29 Dominik Röttsches <drott@chromium.org>
-
- Avoid more nullptr offset UBSan warnings (#57316).
-
- * src/base/ftoutln.c (FT_Outline_Transform): Bail on empty points.
- * src/cff/cffload.c (cff_subfont_load): Use `FT_OFFSET'.
- * src/psaux/psft.c (cf2_decoder_parse_substrings): Early out if
- `charstring_base' or `charstring_len' are null.
- * src/sfnt/ttload.c (tt_face_load_name): Use `FT_OFFSET'.
-
-2019-11-23 John Stracke <jstracke@Google.com>
-
- [base] Really fix #57194.
-
- Apply accidentally missed second part of patch.
-
- * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Call
- `FT_GlyphLoader_CreateExtra'.
-
-2019-11-23 Werner Lemberg <wl@gnu.org>
-
- [truetype] Avoid sanitizer warning (#57289).
-
- * src/truetype/ttpload.c (tt_face_get_device_metrics): Use
- `FT_OFFSET'.
-
-2019-11-23 Armin Hasitzka <prince.cherusker@gmail.com>
-
- [truetype] Fix integer overflow (#57287).
-
- * src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.
-
-2019-11-23 Ben Wagner <bungeman@google.com>
-
- [sfnt] Avoid sanitizer warning (#57286).
-
- * src/sfnt/ttcmap.c (tt_face_build_cmaps): Avoid possible `NULL +
- offset' computation.
- Tag `table' as `const'.
-
-2019-11-23 John Stracke <jstracke@Google.com>
- Werner Lemberg <wl@gnu.org>
-
- [base] Fix `NULL + offset' sanitizer warnings (#57194).
-
- * src/base/ftgloadr.c (FT_GlyphLoader_Adjust_Points,
- FT_GlyphLoader_Adjust_Subglyphs): Use `FT_OFFSET'.
- (FT_GlyphLoader_CreateExtra): Add short cut if some values are zero.
-
-2019-11-23 Werner Lemberg <wl@gnu.org>
-
- * include/freetype/internal/ftmemory.h (FT_OFFSET): New macro.
-
- Use this for `base + offset' pointer calculations where `base' can
- be NULL (triggering a sanitizer warning even if the resulting
- pointer gets never dereferenced since it is undefined behaviour
- in C).
-
- Suggested by Ben Wagner.
-
-2019-11-23 Ben Wagner <bungeman@google.com>
-
- [sfnt] Ensure OTTO fonts have tables (#57285).
-
- * src/sfnt/ttload.c (tt_face_load_font_dir): Add test.
-
-2019-11-23 Behdad Esfahbod <behdad@behdad.org>
-
- Minor fixes for recent compilers.
-
- * src/gzip/infutil.h (inflate_mask): Add `const'.
-
- * src/autofit/aflatin2.c: Include `ft2build.h'.
-
-2019-11-07 Nikolaus Waxweiler <madigens@gmail.com>
-
- * CMakeLists.txt: Minor additions to the notes, compile
- builds/unix/ftsystem.c instead of src/base/ftsystem.c on UNIX.
-
- The latter change is based on the code proposed by rim in #55235.
-
-2019-10-25 Werner Lemberg <wl@gnu.org>
-
- * src/sfnt/sfwoff2.c (woff2_open_font): Check `num_fonts' for TTCs.
-
- Reported as
-
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18494
-
-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 colored 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) 2018-2021 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:
diff --git a/README.git b/README.git
index 2bed537..b4c0703 100644
--- a/README.git
+++ b/README.git
@@ -72,26 +72,6 @@ to execute `autogen.sh` in advance; this script clones the 'dlg' git
submodule and copies some files into FreeType's source tree.
-contributing
-------------
-
-If you want to contribute to FreeType it is recommended to install the
-`git-merge-changelog` program – we use a `ChangeLog` file, which often
-prevents simple merging due to conflicts. Most GNU/Linux
-distributions have a package for this program; otherwise you can
-install it via the 'gnulib' git repository. Detailed instructions can
-be found at the beginning of
-
- https://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/git-merge-changelog.c
-
-To make it actually work, add to file `.git/config` in the FreeType
-git repository (or to your `$HOME/.gitconfig` file) the lines
-
- [merge "merge-changelog"]
- name = GNU-style ChangeLog merge driver
- driver = /usr/local/bin/git-merge-changelog %O %A %B
-
-
----------------------------------------------------------------------
Copyright (C) 2005-2021 by
diff --git a/docs/oldlogs/ChangeLog.210 b/docs/oldlogs/ChangeLog.210
new file mode 100644
index 0000000..e649d31
--- /dev/null
+++ b/docs/oldlogs/ChangeLog.210
@@ -0,0 +1,7815 @@
+2021-07-18 Werner Lemberg <wl@gnu.org>
+
+ * Version 2.11.0 released.
+ ==========================
+
+
+ Tag sources with `VER-2-11-0'.
+
+ * docs/VERSION.TXT: Add entry for version 2.11.0.
+ * docs/CHANGES: Updated.
+
+ * README, src/base/ftver.rc, builds/windows/vc2010/index.html,
+ builds/windows/visualc/index.html,
+ builds/windows/visualce/index.html,
+ builds/wince/vc2005-ce/index.html,
+ builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
+ s/2.10.4/2.11.0/, s/2104/2110/.
+
+ * include/freetype/freetype.h (FREETYPE_MINOR): Set to 11.
+ (FREETYPE_PATCH): Set to 0.
+
+ * builds/unix/configure.raw (version_info): Set to 24:0:18.
+ * CMakeLists.txt (VERSION_MINOR): Set to 11.
+ (VERSION_PATCH): Set to 0.
+
+ * builds/toplevel.mk (dist): Ignore more git-related files.
+
+2021-07-17 David Turner <david@freetype.org>
+
+ * src/smooth/ftgrays.c: Fix compilation if `FT_LONG64` is undefined.
+
+ The code assumed that if `__SSE2__` is defined, then 64-bit integer
+ types are available. This is not the case apparently for certain
+ multilib compiler targets like 'x86_32.x86' used by Gentoo.
+
+ This patch fixes the issue by disabling the special code path when
+ 64-bit integer types are not available.
+
+ Fixes #1071.
+
+2021-07-16 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
+
+ [tests] Allow arbitrary build directories.
+
+ * tests/issue-1063/main.c (main): I am building with a build
+ directory that is not directly inside the source tree, so the path
+ `../tests/data/As.I.Lay.Dying.ttf` does not resolve to the test
+ input file. This change passes the test data directory as an
+ environment variable to allow arbitrary build directories.
+
+ * tests/meson.build: Updated.
+
+2021-07-16 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
+
+ * tests/issue-1063/main.c (main): Fix uninitialized variable.
+
+ I tried running `meson test` but the test just crashed and gdb
+ reported that the face argument to `FT_Get_Char_Index` was nonsense.
+ With this change the test prints 'Could not open file: ' as it
+ should.
+
+2021-07-16 Werner Lemberg <wl@gnu.org>
+
+ [smooth] Minor fixes.
+
+ * src/smooth/ftgrays.c (gray_render_conic): Move variable and
+ structure declarations to beginning of function. Inspite of C99
+ compliance we still do this for the sake of backward compatibility.
+ This also avoids a shadowing declaration of `count`.
+ (gray_convert_glyph_inner): Fix typo.
+
+2021-07-15 Ben Wagner <bungeman@chromium.org>
+
+ * src/smooth/ftgrays.c: Guard inclusion of `emmintrin.h`.
+
+ Guard inclusion of `emmintrin.h` with `#ifdef __SSE2__`. The gcc
+ version of this header, `xmmintrin.h`, and `mmintrin.h` check that
+ the appropriate defines are set before defining anything (are
+ internally guarded). However, the clang versions of these includes
+ are not internally guarded. As a result of this, externally guard
+ the inclusion of these headers.
+
+2021-07-15 David Turner <david@freetype.org>
+
+ [smooth] Implement Bézier quadratic arc flattening with DDA.
+
+ Benchmarking shows that this provides a very slighty performance
+ boost when rendering fonts with lots of quadratic Bézier arcs,
+ compared to the recursive arc splitting, but only when SSE2 is
+ available, or on 64-bit CPUs.
+
+ On a 2017 Core i5-7300U CPU on Linux/x86_64:
+
+ ftbench -p -s10 -t5 -cb DroidSansFallbackFull.ttf
+
+ Before: 4.033 us/op (best of 5 runs for all numbers)
+ After: 3.876 us/op
+
+ ftbench -p -s60 -t5 -cb DroidSansFallbackFull.ttf
+
+ Before: 13.467 us/op
+ After: 13.385 us/op
+
+ * src/smooth/ftgrays.c (gray_render_conic): New implementation
+ based on DDA and optionally SSE2.
+
+2021-07-15 David Turner <david@freetype.org>
+
+ [smooth] Minor speedup to smooth rasterizer.
+
+ This speeds up the smooth rasterizer by avoiding conditional
+ branches in the hot path.
+
+ - Define a fixed 'null cell', which will be pointed to whenever the
+ current cell is outside of the current target region. This avoids
+ a `ras.cell != NULL` check in the `FT_INTEGRATE` macro.
+
+ - Also use the null cell as a sentinel at the end of all `ycells`
+ linked-lists, by setting its x coordinate to `INT_MAX`. This
+ avoids a `if (!cell)` check in `gray_set_cell` as well.
+
+ - Slightly change the worker struct fields to perform a little less
+ operations during rendering.
+
+ Example results (on a 2013 Corei5-3337U CPU)
+
+ out/ftbench -p -s10 -t5 -bc DroidSansFallbackFull.ttf
+
+ Before: 5.472 us/op
+ After: 5.275 us/op
+
+ out/ftbench -p -s60 -t5 -bc DroidSansFallbackFull.ttf
+
+ Before: 17.988 us/op
+ After: 17.389 us/op
+
+ * src/smooth/ftgrays.c (grat_TWorker): Replace `num_cells` field with
+ `cell_free` and `cell_limit`.
+ (NULL_CELL_PTR, CELL_MAX_X_VALUE, CELL_IS_NULL): New macros.
+ (gray_dump_cells, gray_set_cell, gray_sweep, gray_sweep_direct,
+ gray_convert_glyph_inner, gray_convert_glyph): Updated.
+
+2021-07-15 David Turner <david@freetype.org>
+
+ [tests] Rewrite download script in Python3.
+
+ This commit replaces the bash script with a Python script that does
+ the same work, plus avoiding to download anything if the files are
+ already installed with the right content.
+
+ We now use the first 8 bytes of each file's sha256 hash for the
+ digest.
+
+ * tests/scripts/download-test-fonts.sh: Removed.
+ * tests/scripts/download-test-fonts.py: New script.
+ * tests/README.md: Updated.
+
+2021-07-15 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
+
+ Support architectures where `long` is smaller than pointers.
+
+ I am currently trying to compile FreeType for CHERI-extended ISAs
+ (CHERI-RISC-V and Arm's Morello), but I am getting compiler warnings
+ from the `FT_UINT_TO_POINTER` macro. When compiling with the CHERI
+ Clang compiler, not using `uinptr_t` for casts between integers an
+ pointers results in the following `-Werror` build failures:
+
+ ```
+ In file included from .../src/truetype/truetype.c:22:
+ .../src/truetype/ttgload.c:1925:22: error:
+ cast from provenance-free integer type to pointer type will
+ give pointer that can not be dereferenced
+ [-Werror,-Wcheri-capability-misuse]
+ node->data = FT_UINT_TO_POINTER( glyph_index );
+ ^
+ .../include/freetype/internal/compiler-macros.h:79:34: note:
+ expanded from macro 'FT_UINT_TO_POINTER'
+ ```
+
+ * include/freetype/internal/compiler-macros.h (FT_UINT_TO_POINTER):
+ The ISO C standard compliant fix for this would be to use
+ `uintptr_t` from `stdint.h`, but I am not sure if this is supported
+ by the minimum compiler version. Therefore, use the
+ compiler-defined `__UINTPTR_TYPE__` macro (supported in GCC 4.6+ and
+ Clang since about 3.0) before checking for `_WIN64` and falling back
+ to `unsigned long`.
+
+2021-07-13 Oleg Oshmyan <chortos@inbox.lv>
+
+ [base] Fix `FT_Open_Face`'s handling of user-supplied streams.
+
+ This was already true (though undocumented) most of the time, but
+ not if `FT_NEW` inside `FT_Stream_New` failed or if the
+ `FT_OPEN_XXX` flags were bad.
+
+ Normally, `FT_Open_Face` calls `FT_Stream_New`, which returns the
+ user-supplied stream unchanged, and in case of any subsequent error
+ in `FT_Open_Face`, the stream is closed via `FT_Stream_Free`.
+
+ Up to now, however, `FT_Stream_New` allocates a new stream even if
+ it is already given one by the user. If this allocation fails, the
+ user-supplied stream is not returned to `FT_Open_Face` and never
+ closed. Moreover, the user cannot detect this situation: all they
+ see is that `FT_Open_Face` returns `FT_Err_Out_Of_Memory`, but that
+ can also happen after a different allocation fails within the main
+ body of `FT_Open_Face`, when the user's stream has already been
+ closed by `FT_Open_Face`. It is plausible that the user stream's
+ `close` method frees memory allocated for the stream object itself,
+ so the user cannot defensively free it upon `FT_Open_Face` failure
+ lest it ends up doubly freed. All in all, this ends up leaking the
+ memory/resources used by user's stream.
+
+ Furthermore, `FT_Stream_New` simply returns an error if the
+ `FT_OPEN_XXX` flags are unsupported, which can mean either an
+ invalid combination of flags or a perfectly innocent
+ `FT_OPEN_STREAM` on a FreeType build that lacks stream support.
+ With this patch, the user-supplied stream is closed even in these
+ cases, so the user can be sure that if `FT_Open_Face` failed, the
+ stream is definitely closed.
+
+ * src/base/ftobjs.c (FT_Stream_New): Don't allocate a buffer
+ unnecessarily.
+ Move error-handling code to make the control flow more obvious.
+ Close user-supplied stream if the flags are unsupported.
+ `FT_Stream_Open` always sets `pathname.pointer`, so remove the
+ redundant (re)assignment. None of the `FT_Stream_Open...` functions
+ uses `stream->memory`, so keep just one assignment at the end,
+ shared among all possible control flow paths.
+ ('Unsupported flags' that may need a stream closure can be either an
+ invalid combination of multiple `FT_OPEN_XXX` mode flags or a clean
+ `FT_OPEN_STREAM` flag on a FreeType build that lacks stream
+ support.)
+
+2021-07-13 Oleg Oshmyan <chortos@inbox.lv>
+
+ [base] Reject combinations of incompatible `FT_OPEN_XXX` flags.
+
+ The three modes are mutually exclusive, and the documentation of the
+ `FT_OPEN_XXX` constants notes this. However, there was no check to
+ validate this in the code, and the documentation on `FT_Open_Args`
+ claimed that the corresponding bits were checked in a well-defined
+ order, implying it was valid (if useless) to specify more than one.
+ Ironically, this documented order did not agree with the actual
+ code, so it could not be relied upon; hopefully, nobody did this and
+ nobody will be hurt by the new validation.
+
+ Even if multiple mode bits were allowed, they could cause memory
+ leaks: if both `FT_OPEN_STREAM` and `stream` are set along with
+ either `FT_OPEN_MEMORY` or `FT_OPEN_PATHNAME`, then `FT_Stream_New`
+ allocated a new stream but `FT_Open_Face` marked it as an 'external'
+ stream, so the stream object was never released.
+
+ * src/base/ftobjs.c (FT_Stream_New): Reject incompatible
+ `FT_OPEN_XXX` flags.
+
+2021-07-12 Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
+
+ * meson.build: Fix build for other UNIX systems (e.g., FreeBSD).
+
+ Without this change the build of `unix/ftsystem.c` fails because the
+ `ftconfig.h` header that defines macros such as `HAVE_UNISTD_H` and
+ `HAVE_FCNTL_H` is only being generated for Linux, macOS, and Cygwin
+ systems:
+
+ ```
+ .../builds/unix/ftsystem.c:258:32: error:
+ use of undeclared identifier 'O_RDONLY'
+ file = open( filepathname, O_RDONLY );
+ ```
+
+ Instead of hardcoding a list of operating systems for this check,
+ update the logic that decides whether to build the file and set a
+ boolean flag that can be checked instead.
+
+2021-07-12 Werner Lemberg <wl@gnu.org>
+
+ [autofit] More clean-ups.
+
+ * src/autofit/afhints.h (AF_GlyphHintsRec): Remove the no longer
+ needed fields `xmin_delta` and `xmax_delta`.
+
+ * src/autofit/afhints.c (af_glyph_hints_reload),
+ src/autofit/afloader.c (af_loader_load_glyph): Updated.
+
+2021-07-12 Werner Lemberg <wl@gnu.org>
+
+ Small clean-ups for the last few commits.
+
+ * include/freetype/fttrace.h (afwarp): Removed.
+
+2021-07-12 David Turner <david@freetype.org>
+
+ Remove obsolete `AF_Angle` type and related sources.
+
+ * src/autofit/afangles.c: File removed. Functions related to
+ sorting moved to...
+ * src/autofit/afhints.c (af_sort_pos, af_sort_and_quantize_widths):
+ This file.
+ * src/autofit/afangles.h: File removed.
+ * src/autofit/aftypes.h: Updated.
+ * src/autofit/autofit.c: Updated.
+
+ * src/autofit/rules.mk (AUTOF_DRV_SRC): Updated.
+
+2021-07-12 David Turner <david@freetype.org>
+
+ Remove experimental auto-hinting 'warp' mode.
+
+ This feature was always experimental, and probably never worked
+ properly. This patch completely removes it from the source code,
+ except for a documentation block describing it for historical
+ purposes.
+
+ * devel/ftoption.h, include/freetype/config/ftoption.h: Remove
+ `AF_CONFIG_OPTION_USE_WARPER`.
+
+ * include/freetype/ftdriver.h: Document 'warping' property as
+ obsolete.
+
+ * src/autofit/afwarp.c, src/autofit/afwarp.h: Files removed.
+ * src/autofit/*: Remove any code related to warp mode.
+
+2021-07-12 David Turner <david@freetype.org>
+
+ Remove experimental 'Latin2' writing system (`FT_OPTION_AUTOFIT2`).
+
+ This code has always been experimental and was never compiled anyway
+ (`FT_OPTION_AUTOFIT2` does not appear in `ftoption.h` or even any of
+ our build files).
+
+ * include/freetype/internal/fttrace.h (aflatin2): Removed.
+ * src/autofit/aflatin2.h, src/autofit/aflatin2.c: Files removed.
+ * src/autofit/afloader.c: Remove undocumented hook to activate
+ Latin2 system.
+ * src/autofit/afstyles.h: Remove `ltn2_dflt` style definition.
+ * src/autofit/afwrtsys.h: Remove `LATIN2` writing system definition.
+ * src/autofit/autofit.c: Updated.
+
+2021-07-05 Werner Lemberg <wl@gnu.org>
+
+ * src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix argument.
+
+ Reported by Hin-Tak.
+
+2021-07-03 Werner Lemberg <wl@gnu.org>
+
+ * meson_options.txt: Sort alphabetically; no final full stops.
+
+2021-07-01 Ben Wagner <bungeman@chromium.org>
+
+ * src/truetype/ttgxvar.c (tt_set_mm_blend): Test `coords`.
+
+ It is undefined behavior to pass `NULL` to `memcpy`. `coords' is
+ passed to `memcpy` but `TT_Get_MM_Blend` and `TT_Get_Var_Design`
+ explictly call `tt_set_mm_blend` with `coords` as `NULL`. In
+ addition, `TT_Set_MM_Blend` has a similar possible issue.
+
+2021-06-30 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Support PaintScale in 'COLR' v1 parsing.
+
+ * include/freetype/ftcolor.h (FT_PaintFormat): Renumber values, add
+ `FT_COLR_PAINTFORMAT_SCALE`.
+ (FT_PaintScale): New structure to represent 'PaintScale*' tables.
+ (FT_COLR_Paint): Updated.
+
+ * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration.
+ (read_paint): Parse 'PaintScale' and friends.
+
+2021-06-30 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Handle fonts without layer list in 'COLR' v1.
+
+ 'COLR' v1 fonts do not necessarily need to have a layer list; for
+ this reason, 'fontTools' recently started generating fonts in a way
+ that drops the layer list if there are no layers in it. This
+ results in the layer list offset becoming zero, which FreeType
+ treated as an invalid table. Fix that and handle the case for layer
+ list offset being 0. This slightly changes how we need to calculate
+ the starting offset for paints.
+
+ * src/sfnt/ttcolr.c (tt_face_load_colr): Handle case of layer list
+ offset being zero without outright rejecting table.
+
+2021-06-30 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/raster/ftraster.c (Render_Single_Pass): Simplify `band_stack'.
+
+2021-06-29 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Do not skip the second pass without dropout control.
+
+ The second pass also fixes horizontal lines through the pixel centers.
+
+ * src/raster/ftraster.c (black_TWorker): Do not use `second_pass'.
+ (Render_Glyph): Skip the second pass only with the appropriate flag.
+
+2021-06-29 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Handle sub-band stack locally.
+
+ * src/raster/ftraster.c (black_TWorker): Move `band_stack' from here..
+ (Render_Single_Pass): ... to here and accept limit arguments.
+ (Render_Glyph): Updated.
+
+2021-06-25 Anurag Thakur <anuthadev@gmail.com>
+
+ [CI] Introduce linux CI and refactor job names.
+
+ * .gitlab-ci.yml: Added jobs for building freetype on linux.
+
+2021-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Handle Bézier stack locally.
+
+ * src/raster/ftraster.c (black_TWorker): Move `arcs' from here...
+ (Conic_To, Cubic_To): ... to here to tighten their scope.
+ (Bezier_Up, Bezier_Down): ... Take the current `arc' argument.
+
+2021-06-28 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Improve paint limit checks
+
+ Paint tables can appear before the `base_glyphs_v1` offset if the
+ font is produced with the layer list before the base glyph list. In
+ this case paint tables can occur after the layer list but before the
+ base glyph list. Checks in the 'COLR' v1 code were rejecting fonts
+ with this layout. Improve these checks by calculating a minimum
+ offset after which paint tables can occur and use that in safety
+ checks.
+
+ * src/sfnt/ttcolr.c (Colr, tt_face_load_colr): Declare
+ `paint_start_v1` and calculate that as the minimum of the end of
+ layer list and base glyph list.
+ (get_child_table_pointer, read_paint, tt_face_get_paint_layers):
+ Use that in safety checks.
+
+2021-06-28 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Clean up vertical sweep.
+
+ * src/raster/ftraster.c (black_TWorker): Replace the current line
+ offset with the pointer and drop the increment.
+ (Function_Sweep_Init): Take values as arguments instead of pointers.
+ (Vertical_Sweep_*, Horizontal_Sweep_Init, Draw_Sweep): Updated.
+
+2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Make `band_top' local variable.
+
+ * src/raster/ftraster.c (black_TWorker): Move `band_top' from here...
+ (Render_Single_Pass): ... to here, and refactor.
+ (Render_Glyph): Updated.
+
+2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Adjust sub-band bisecting limits.
+
+ We can bisect a band until it is just a single scan line. This might
+ be slow and cause time-outs but if we need to impose limits it should
+ be elsewhere.
+
+ * src/raster/ftraster.c (Render_Single_Pass): Tweak sub-banding.
+
+2021-06-25 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/raster/ftraster.c (Render_Single_Pass): Remove dead code.
+
+2021-06-25 Werner Lemberg <wl@gnu.org>
+
+ [base] Add trace level to logging output.
+
+ Some practical debugging work has shown that displaying level X of
+ an `FT_TRACEX` macro in the output of `FT2_DEBUG="... -v"` would be
+ very helpful to find out which trace level should be selected. As
+ an example, we now get output like
+
+ ```
+ [ttobjs:2] TTF driver
+ [ttobjs:2] SFNT driver
+ [sfobjs:2] not a font using the SFNT container format
+ [t1objs:2] Type 1 driver
+ [stream:7] FT_Stream_EnterFrame: 14 bytes
+ ```
+
+ * include/freetype/internal/ftdebug.h (FT_LOGGING_TAGX): New macro.
+ (FT_LOG): Use it to add the trace level to the logging tag.
+
+ * include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):
+ Adjust.
+
+ * docs/DEBUG: Updated.
+
+2021-06-24 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth, raster] Fix up and align error codes.
+
+ FT_Render_Glyph picked up FAILURE or 1 returned from the raster
+ function, which became a confusing error code. Instead, return
+ Raster_Overflow in the unlikely event that banding does not help or
+ another meaningful error.
+
+ * src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph):
+ Use Raster_Overflow when the rendering pool is exhausted and return it
+ if banding does not help.
+ (gray_raster_render): Use Smooth_Err_Ok.
+
+ * src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow
+ if banding does not help or another error code.
+
+2021-06-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth, raster] Remove synonymous error macros.
+
+ * src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/.
+ (gray_convert_glyph_inner): Updated accordingly.
+
+ * src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros.
+ (New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up,
+ Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render):
+ Updated accordingly.
+
+2021-06-22 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] s/PaintTransformed/PaintTransform/, s/transformed/transform/.
+
+ * include/freetype/ftcolor.h (FT_PaintTransformed, FT_PaintFormat,
+ FT_COLR_Paint): Do it to make it harmonize with other names such as
+ 'PaintTranslate'.
+
+ * src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Ditto.
+
+2021-06-22 Dominik Röttsches <drott@chromium.org>
+
+ Move 'COLR' API to `ftcolor.h`.
+
+ * include/freetype/freetype.h: Cut section layer managament
+ containing 'COLR' v0 and v1 API and move it to `ftcolor.h` as
+ requested by Werner on freetype-devel.
+ * include/freetype/ftcolor.h: Paste that section.
+
+2021-06-19 Werner Lemberg <david@freetype.org>
+
+ [truetype] Fix integer overflow.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312
+
+ * src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`.
+
+2021-06-19 Werner Lemberg <david@freetype.org>
+
+ [autofit] Prevent hinting if there are too many segments.
+
+ This speeds up handling of broken glyphs.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35309
+
+ * src/autofit/aflatin.c (af_latin_hints_compute_segments): Implement
+ it.
+
+2021-06-18 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely.
+
+2021-06-16 David Turner <david@freetype.org>
+
+ [autofit] Fix return value of `FT_Load_Glyph`.
+
+ * src/autofit/afglobal.c (af_face_globals_get_metrics): The issue is
+ that `style_metrics_init` sometimes returns -1 without clearing
+ `error`. While looping to `Again`, the next operation is
+ successful, but -1 is still returned by the function. The fix is to
+ set `error` to 0 appropriately.
+
+ Fixes #1063.
+
+2021-06-15 David Turner <david@freetype.org>
+
+ [meson] Add first regression test to FreeType.
+
+ * tests/README.md: New file that explains how to build and run the
+ tests with the Meson build.
+
+ * tests/scripts/download-test-fonts.sh: New bash script to download
+ test font files to the `tests/data` folder.
+
+ * meson.build, meson_options.txt: Add 'tests' option to enable
+ building and running the test programs (disabled by default).
+
+ * tests/meson.build: New file.
+
+ * tests/issue-1063/main.c: Simple regression test to exhibit issue
+ 1063.
+
+ * .gitignore: Ignore the content of the `tests/data` folder for
+ now.
+
+2021-06-12 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [type42] Fix new memory leak.
+
+ We need to inverse inheritance of FT_GlyphSlot_Internal so that we
+ have a chance to free the rendered bitmap from the parent slot.
+
+ * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts
+ of the child `ttslot' and replace it with the parent structure.
+ (T42_GlyphSlot_Done): Updated accordingly.
+
+2021-06-12 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Fix another assertion.
+
+ * src/psaux/psintrp.c (cf2_interpT2CharString)
+ <cf2_escCALLOTHERSUBR>: Convert assertion into error, since the
+ problem can happen with invalid user input.
+
+ Test case is file
+
+ fuzzing/corpora/legacy/oss-fuzz/5754332360212480-unknown-read
+
+ in the `freetype2-testing` repository.
+
+2021-06-12 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Fix assertions.
+
+ * src/psaux/pshints.c (cf2_hintmap_adjustHints): Check for overflow
+ before emitting an assertion error.
+
+ Test case is file
+
+ fuzzing/corpora/legacy/oss-fuzz/4594115297673216-integer-overflow
+
+ in the `freetype2-testing` repository.
+
+2021-06-09 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/truetype/ttinterp.c (TT_RunIns): Optimize tracing.
+
+2021-06-09 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [sdf] Fix SDF positioning.
+
+ * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to
+ `bitmap_top' and `bitmap_left'.
+
+ * sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning.
+
+2021-06-08 Werner Lemberg <wl@gnu.org>
+
+ Fix 'devel' build for 'COLR' v1.
+
+ * devel/ftoption.h: Synchronize with
+ `include/freetype/config/ftoption.h`.
+
+2021-06-08 Werner Lemberg <wl@gnu.org>
+
+ [sfnt] Sanitize cmap4 table better.
+
+ Fixes #1062.
+
+ * src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of
+ `length` gracefully.
+
+2021-06-08 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Pointer validity check when reading 'COLR' v1 layers
+
+ * src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the
+ existing sanity checks, ensure that the pointer to the layer to be
+ read is within the 'COLR' v1 table.
+
+2021-06-08 Werner Lemberg <wl@gnu.org>
+
+ * src/sdf/ftsdfcommon.c: Fix inclusion of header files.
+
+2021-06-08 Werner Lemberg <wl@gnu.org>
+
+ [sdf] Make `make multi` work.
+
+ * src/sdf/ftsdf.c: Include `ftbitmap.h`.
+
+ * src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`.
+ Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends.
+
+ * src/sdf/ftsdfcommon.c: New file.
+
+ * src/sdf/rules.mk, src/sdf/sdf.c: Updated.
+
+2021-06-08 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Use 8 bits for final SDF output instead of 16bits.
+
+ Since 8-bits is enough to represent SDF data we no longer require
+ 16-bits for this purpose. Also, we now normalize the output data
+ to use the entire 8-bit range efficiently. For example: if we use
+ 3.5 format with a spread of 1 we basically only use the starting
+ 5-bits. By normalizing we can use the entire 8-bit range.
+
+ * include/freetype/freetype.h (FT_Render_Mode): Updated description
+ for `FT_RENDER_MODE_SDF` regarding this change.
+
+ * include/freetype/ftimage.h (FT_Pixel_Mode): Removed
+ `FT_PIXEL_MODE_GRAY16` since no longer required.
+
+ * include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer
+ required.
+
+ * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit
+ bitmap instead of 16-bit buffer.
+
+ * src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert
+ 16.16 distance value to our desired format.
+
+ * src/sdf/ftsdf.c (sdf_generate_with_overlaps,
+ sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function
+ and also use 8-bit output buffer.
+
+ * src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead
+ of 16-bit buffer.
+
+2021-06-02 Ben Wagner <bungeman@chromium.org>
+ Werner Lemberg <wl@gnu.org>
+
+ [sfnt] Fix fallout from 2021-05-29 change.
+
+ * src/sfnt/ttcolr.c (find_base_glyph_record,
+ find_base_glyph_v1_record): Adjust binary search.
+
+ Needs to be updated with change to unsigned.
+
+2021-06-02 Werner Lemberg <wl@gnu.org>
+
+ * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing.
+
+ Problem reported by Alexei.
+
+2021-06-02 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Fix MSVC compiler warnings.
+
+ * src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):
+ Add cast.
+
+2021-05-29 Werner Lemberg <wl@gnu.org>
+
+ Fix compilation errors and (some) warnings for clang++.
+
+ * src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static.
+
+ * src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c
+ (ftc_snode_compare): Remove semicolon.
+
+ * src/cff/cffparse.c (cff_parser_run): Add `break` statement.
+
+ * src/cid/cidload.c (cid_hex_to_binary): Add cast.
+
+ * src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop.
+ (bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add
+ casts.
+ * src/sdf/ftsdf.c (sdf_generate_bounding_box,
+ sdf_generate_with_overlaps): Ditto.
+ * src/sdf/ftsdfcommon.h (square_root): Ditto.
+ * src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render,
+ ft_bsdf_render): Ditto.
+
+ * src/sfnt/ttcolr.c (find_base_glyph_record,
+ find_base_glyph_v1_record): Fix variable signedness.
+ (read_color_line): Add cast.
+ (read_paint): Add casts.
+ Fix signedness issue.
+ (tt_face_get_colorline_stops) Fix signedness issues.
+
+ * src/sfnt/ttpost.c (load_format_20): Add casts.
+
+ * src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS):
+ Remove final semicolons.
+
+2021-05-29 Werner Lemberg <wl@gnu.org>
+
+ [build] Allow overriding of `ANSIFLAGS` for GNU make build.
+
+ * builds/*: Implement it.
+
+2021-05-27 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [type42] Fix auto-hinting.
+
+ The autohinter could not access the base (unscaled) outline in the
+ child TrueType glyph slot. We now share the internal parts between
+ the parent and child glyph slots. Fixes #1057.
+
+ * src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts
+ of `T42_GlyphSlot' and replace it with the child TrueType structure.
+ (T42_GlyphSlot_Done): Updated accordingly.
+
+2021-05-25 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Guard and trace AFM kern data allocation.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543
+
+ * include/freetype/internal/fttrace.h: Add 'afmparse' trace
+ component.
+
+ * src/psaux/afmparse.c (FT_COMPONENT): Define.
+ (afm_parse_track_kern, afm_parse_kern_pairs): Protect against
+ allocations bombs.
+ Add tracing.
+ (afm_parse_kern_data): Don't allow multiple kern data sections.
+
+2021-05-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * meson.build (ft2_public_headers): Add missing `ftcid.h'.
+
+ Fixes #1058.
+
+2021-05-20 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [type42] Avoid some memory zeroing.
+
+ * src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro.
+ * src/type42/t42parse.c (t42_parse_sfnts): Ditto.
+
+2021-05-19 Nikolaus Waxweiler <madigens@gmail.com>
+
+ [CMake] Update dependency finders.
+
+ 1. Fixes CMake using any found HarfBuzz version lower than the minimum
+ required. This is based on HALX99's merge request at
+ https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/31
+ 2. Update FindHarfBuzz.cmake from
+ https://github.com/WebKit/WebKit/blob/1ce32454/Source/cmake/FindHarfBuzz.cmake
+ and guard post-CMake-3.1 features to keep the minimum version unchanged
+ 3. Update FindBrotliDec.cmake to stop the warnings, based on what
+ https://github.com/google/woff2/blob/a0d0ed7d/cmake/FindBrotliDec.cmake
+ is doing
+
+ * CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Implement 1 and 2.
+ * builds/cmake/FindBrotliDec.cmake: Implement 3.
+
+2021-05-19 Ben Wagner <bungeman@chromium.org>
+
+ [gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`.
+
+ While a function pointer may be cast to another function pointer
+ type, it is required to cast the function pointer back to the
+ original function pointer type before calling it. If a parameter is
+ a pointer the exact pointer type is required. Using a pointer to a
+ different underlying type is technically undefined behavior. The
+ wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took
+ `FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so
+ when gzip calls these callbacks through `alloc_func` or `free_func`
+ it invokes undefined behavior. On most platforms this works out as
+ expected, but newer undefined behavior detectors and targets like
+ wasm can detect this and will produce an error.
+
+ * src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures
+ to exactly match `alloc_func` and `free_func`, respectively.
+ Internally, cast the `void*` opaque pointer to `FT_Memory`.
+
+2021-05-18 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ Prioritize the anti-aliasing renderer module.
+
+ * modules.cfg: Reorder the renderers.
+ * include/freetype/config/ftmodule.h: Ditto.
+
+2021-05-16 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [sfnt] Additional guards on the POST table.
+
+ Fixes timeout (#1055) analyzed by Ben Wagner, reported as
+
+ https://crbug.com/1194092
+
+ * src/sfnt/ttload.c (tt_face_load_post): Check POST format.
+ * src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode
+ charmap only if the glyph names exist.
+ * src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and
+ ".null".
+
+2021-05-13 Daniel McArdle <dmcardle@chromium.org>
+
+ [psaux] Use doubling allocation strategy for CF2_ArrStack.
+
+ Fixes timeout reported as
+
+ https://crbug.com/1206181
+
+ * src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it.
+ * src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'.
+
+2021-05-12 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16.
+
+ Ten was barely enough for two slanted stems. Sixteen can actually fit
+ a bit more complicated scanlines.
+
+2021-05-11 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code.
+
+2021-05-11 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Faster bitmap sweeping.
+
+ Selecting the fill rule or checking the direct mode each time we call
+ `gray_hline' is sub-optimal. This effectively splits the direct mode
+ into a separate code path while inlining `gray_hline' and saving 5-7%
+ of rendering time.
+
+ * src/smooth/ftgrays.c (gray_hline): Eliminated in favor of...
+ (FT_FILL_RULE, FT_GRAY_SET): ... these new macros...
+ (gray_sweep): ... inlined here.
+ (gray_sweep_direct): New function that handles the direct span buffer.
+ (gray_TWorker): Remove the span buffer.
+ (gray_raster_render, gray_convert_glyph): Updated.
+
+2021-05-10 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.
+
+ It is too bad the even-odd rule is not used much.
+
+2021-05-07 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [type1] Avoid MM memory zeroing.
+
+ * src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map):
+ Tweak allocation macros.
+ * src/type1/t1objs.c (T1_Face_Done): Minor.
+
+2021-05-07 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro.
+
+2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro.
+
+2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro.
+
+2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/cid/cidload.c (cid_read_subrs): Tweak allocation macro.
+
+2021-05-06 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation.
+
+2021-05-05 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cff,psaux] Avoid memory zeroing (contd.).
+
+ * src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak
+ allocation macros.
+ * src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto.
+ * src/psaux/psstack.c (cf2_stack_init): Ditto.
+
+2021-05-04 Ben Wagner <bungeman@chromium.org>
+
+ * src/cid/cidload.c (cid_hex_to_binary): Improve return value.
+
+ Add argument to return the actual number of bytes that were decoded.
+ The actual number of bytes decoded can be quite variable depending
+ on the number of ignored 'whitespace' bytes or early termination
+ with `>`.
+ (cid_face_open): Updated to use this calculated value. This avoids
+ trusting `parser->binary_length` is always be correct and reading
+ uninitialized bits if fewer are actually decoded.
+
+ First reported as
+
+ https://crbug.com/1203240
+
+2021-05-03 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [sfnt] Streamline POST format 2.0 handing.
+
+ To reduce memory allocations, we read an entire Pascal-string buffer
+ and convert it to a C-string buffer. We also reject tables with
+ Postscript glyph names exceeding 63 bytes.
+
+ * src/sfnt/ttpost.c (load_format20): Implement it.
+ (load_post_names): Check the minimal POST table size.
+ (load_format25, tt_face_free_ps_names): Updated accordingly.
+
+2021-05-02 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [bdf,pcf] Avoid memory zeroing (contd.).
+
+ * src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment,
+ _bdf_add_property, bdf_load_font): Tweak allocation macros.
+ * src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto.
+
+2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro.
+
+2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [sfnt] Avoid some memory zeroing.
+
+ * src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face,
+ tt_name_ascii_from_{utf16,other}): Tweak allocaton macros.
+ * src/sfnt/ttload.c (tt_face_load_name): Ditto.
+
+2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros.
+
+2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro.
+
+2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [truetype] Avoid some memory zeroing.
+
+ * src/truetype/ttinterp.c (Init_Context): Tweak allocation macro.
+ * src/truetype/ttpload.c (tt_face_load_cvt): Ditto.
+
+2021-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [woff2] Avoid some memory zeroing.
+
+ * src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros.
+
+2021-04-30 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again.
+
+2021-04-27 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [lzw] Preserve decompression stack when relocating to heap.
+
+ * src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when
+ relocating to heap.
+
+2021-04-27 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check.
+
+2021-04-27 Werner Lemberg <wl@gnu.org>
+
+ * src/psmodule.c (ps_unicodes_init): Ignore empty glyph names.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637
+
+2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change.
+
+2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cff] Avoid some memory zeroing.
+
+ * src/cff/cffparse.c (cff_parser_init): Tweak memory macro.
+ * src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers,
+ cff_charset_load, cff_vstore_load): Ditto.
+
+2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [pfr] Avoid some memory zeroing.
+
+ * src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro.
+ * src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps,
+ pfr_phy_font_load): Ditto.
+
+2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro.
+
+2021-04-26 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [psaux,psnames] Avoid some memory zeroing.
+
+ * src/psaux/psstack.c (cf2_stack_init): Tweak memory macro.
+ * src/psnames/psmodule.c (ps_unicodes_init): Ditto.
+
+2021-04-25 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [base] Avoid some memory zeroing.
+
+ * src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY.
+ * src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto.
+
+2021-04-25 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [bdf,pcf] Avoid some memory zeroing.
+
+ * src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font):
+ Tweak memory macros.
+ * src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto.
+ * src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property,
+ _bdf_parse_glyphs, _bdf_parse_start): Ditto.
+ (_bdf_add_property): Do not handle zero size.
+
+2021-04-25 Issam E. Maghni <issam.e.maghni@mailbox.org>
+
+ * builds/meson/process_ftoption_h.py: Add LF at EOF.
+
+ This fixes
+
+ .../ftoption.h:1030:10: error:
+ no newline at end of file [-Werror,-Wnewline-eof]
+
+ for the generated `ftoption.h` file.
+
+2021-04-24 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/.
+ * builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/sfnt/sfdriver.c (get_win_string, get_apple_string,
+ sfnt_get_var_ps_name): Do not zero out the buffer.
+ * src/sfnt/sfobjs.c (sfnt_init_face): Ditto.
+ * src/sfnt/sfwoff.c (woff_open_font): Ditto.
+ * src/sfnt/sfwoff2.c (woff2_open_font): Ditto.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name):
+ Do not zero out the buffer.
+ * src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto.
+ * src/type1/t1load.c (parse_subrs, parse_charstrings,
+ parse_blend_axis_types): Ditto.
+ * src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto.
+ * src/type42/t42parse.c (t42_parser_init): Ditto.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cid] s/FT_ALLOC/FT_QALLOC/ and clean up.
+
+ * src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer.
+ * src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load):
+ Do not zero out the buffer.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer.
+ * src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto.
+
+2021-04-23 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer.
+ * src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto.
+ * src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto.
+
+2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cache] Optimize SBit copying.
+
+ * src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer.
+ (ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/.
+
+2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer.
+ * src/otvalid/otvmod.c (otv_load_table): Ditto.
+
+2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not
+ zero out the buffer.
+
+2021-04-22 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
+
+ * src/base/ftobjs.c (open_face_PS_from_sfnt_stream,
+ Mac_Read_sfnt_Resource): Do not zero out the buffer.
+ * src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.
+ * src/base/ftrfork.c (raccess_make_file_name,
+ raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto.
+
+2021-04-20 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cache] Restore SBit copying for unowned (BDF) bitmaps.
+
+ * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore.
+ (ftc_snode_load): Check ownership and copy unowned bitmaps.
+
+2021-04-19 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Return in 'COLR' v1 when layer pointer outside table
+
+ * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return
+ when paint pointer outside table.
+ (read_paint): Add missing return when paint pointer outside table.
+
+2021-04-18 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cache] Switch to lazy SBit setting.
+
+ * src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed.
+ (ftc_snode_load): Take the bitmap ownership instead of copying.
+
+2021-04-16 Daniel Welty <@danielwelty>
+
+ * src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch.
+
+2021-04-16 Werner Lemberg <wl@gnu.org>
+
+ * builds/unix/freetype2.m4: Fix help string formatting.
+
+ The indented `dnl` macros inserted unwanted horizontal space.
+
+ Problem reported by Ozkan Sezer <sezeroz@gmail.com>.
+
+2021-04-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Safeguard 'COLR' v1 layer extraction
+
+ * src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output
+ layer pointer to iterator if it is outside the 'COLR' table.
+ (read_paint): Do not attempt to read layers that are outside the
+ table.
+
+2021-04-02 Ben Wagner <bungeman@chromium.org>
+
+ [base] Complete `ft_glyphslot_clear`.
+
+ * src/base/ftobjs.c (ft_glyphslot_clear): This function is intended
+ to reset all the values of a glyph slot. However, it was not
+ resetting the values of the advances and `glyph_index`. Reset the
+ advances and `glyph_index` to zero.
+
+2021-04-02 Ben Wagner <bungeman@chromium.org>
+
+ [truetype] Prevent glyph program state from persisting.
+
+ `FDEF` instructions are specified as allowed only in 'prep' or
+ 'fpgm'. FreeType has attempted to prevent their use in the glyph
+ program, but they were still allowed in glyph programs if defined in
+ a function defined in 'prep' or 'fpgm' and called from the glyph
+ program.
+
+ Similarly, `IDEF` instructions are specified not to be able to
+ modify any existing instruction. FreeType has attempted to prevent
+ their use in the glyph program, but they can still be used like
+ `FDEF`.
+
+ This change stores the initial bytecode range type and disallows the
+ use of `FDEF` and `IDEF` while running the glyph program.
+
+ Most other state is copied from the `TT_Size` into the execution
+ context. However, it is possible for a glyph program to use `WS` to
+ write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to
+ write to the control value table.
+
+ Allowing any change to the global state from the glyph program is
+ problematic as the outlines of any given glyph may change based on
+ the order the glyphs are loaded or even how many times they are
+ loaded. There exist fonts that write to the storage area or the
+ control value table in the glyph program, so their use should not be
+ an error.
+
+ Possible solutions to using these in the glyph program are
+
+ * ignore the writes;
+ * value-level copy on write, discard modified values when finished;
+ * array-level copy on write, discard the copy when finished;
+ * array-level copy up-front.
+
+ Ignoring the writes may break otherwise good uses. A full copy
+ up-front was implemented, but was quite heavy as even well behaved
+ fonts required a full copy and the memory management that goes along
+ with it. Value-level copy on write could use less memory but
+ requires a great deal more record keeping and complexity. This
+ change implements array-level copy on write. If any attempt is made
+ to write to the control value table or the storage area when the
+ initial bytecode range was in a glyph program, the relevant array
+ will be copied to a designated storage area and the copy used for
+ the rest of the glyph program's execution.
+
+ * src/truetype/ttinterp.h (TT_ExecContextRec): New fields
+ `iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`,
+ `glyfStorage`, and `origStorage`.
+
+ * src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle
+ `exc->glyfCvt`.
+ (Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use
+ it.
+ (Ins_WS): Handle `exc->glyfStorage`.
+ (Ins_FDEF, Ins_IDEF): Updated.
+ (TT_RunIns): Updated.
+ (TT_Done_Context): Free 'glyf' CVT working and storage area.
+ (TT_Load_Context): Fix/add casts.
+
+ * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast.
+
+2021-03-30 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Check validity of pointer location of `read_color_line`.
+
+ * src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch
+ child table pointer early for all paint formats that compute a child
+ table pointer.
+ (read_color_line, read_paint): Updated.
+ (tt_face_get_colorline_stops): Check `colr->table`.
+
+2021-03-28 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
+
+ [docs] Update docwriter stylesheet for 1.3.1.
+
+ This change is required to support docwriter 1.3.1.
+
+ See
+
+ https://gitlab.freedesktop.org/freetype/docwriter/-/merge_requests/101
+
+ for more information.
+
+ * docs/markdown/stylesheets/extra.css:
+ (.wy-nav-content, .md-sidebar--secondary): Remove.
+
+2021-03-16 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later.
+
+2021-03-16 Ben Wagner <bungeman@google.com>
+
+ [sfnt] Fix memory leak in png loading.
+
+ Reported as
+
+ https://bugs.chromium.org/p/chromium/issues/detail?id=1182552
+
+ Memory is allocated and the pointer assigned to `rows` inside a
+ 'setjmp' scope. This memory must be freed outside the 'setjmp'
+ scope after a 'longjmp'. Since `rows` is a local and modified
+ inside the 'setjmp' scope it must be marked volatile or it will have
+ an indeterminate value after the 'longjmp'.
+
+ * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`.
+
+2021-03-16 Christopher Degawa <ccom@randomderp.com>
+
+ * CMakeLists.txt: Don't limit generation of 'pkg-config' file to UNIX.
+
+ mingw-w64 uses the 'pkg-config' files but does not set UNIX.
+
+2021-03-11 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning.
+
+2021-03-13 Werner Lemberg <wl@gnu.org>
+
+ Handle various VC++ compiler warnings.
+
+ Fixes #1039.
+
+ * src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside):
+ Initialize `sigma`.
+
+ * src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if
+ function arguments are invalid.
+ * src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast.
+
+ * src/sfnt/sfwoff2.c (woff2_decompress)
+ [!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`.
+
+ * src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`.
+
+2021-03-11 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Reduce copying during integration phase.
+
+ We now record `cover' and `area' directly into the linked list. This
+ makes rendering faster by 10% or even more at larger sizes.
+
+ * src/smooth/ftgrays.c (FT_INTEGRATE): Write directly.
+ (gray_TWorker): Add direct cell reference and remove unused fields.
+ (gray_set_cell): Consolidate the linked list management and pointers.
+ (gray_convert_glyph, gray_convert_glyph_inner): Updated.
+
+2021-03-10 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro.
+ (gray_render_line, gray_render_scanline): Use it.
+
+2021-03-09 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals.
+
+ These produce faster or more optimizable code.
+
+2021-03-08 Tim-Philipp Müller <tim@centricular.com>
+
+ [meson] Fix 'mmap' handling on Windows.
+
+ * meson.build (ft2_sources): Always use `windows/ftsystem.c` on
+ Windows unless mmap has been disabled.
+
+ https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/5#note_829289
+
+2021-03-07 Tim-Philipp Müller <tim@centricular.com>
+
+ [ci] Add basic support for Meson builds with MSVC on Windows.
+
+ This adds meson jobs for VS2017 (x86 and x86_64).
+
+ * .gitlab-ci.yml: New file.
+
+2021-03-07 Tim-Philipp Müller <tim@centricular.com>
+
+ [meson] Add subproject fallbacks for 'libpng' and 'zlib'.
+
+ * subprojects/libpng.wrap, subprojects/zlib.wrap: New files.
+
+ * meson.build: Updated.
+
+2021-03-07 Xavier Claessens <xavier.claessens@collabora.com>
+
+ [meson] Make it work with Windows.
+
+ * meson.build: Do not process `ftconfig.h` when not using
+ `ftconfig.h.in`.
+
+ Fixes #1029.
+
+2021-02-25 Werner Lemberg <wl@gnu.org>
+
+ [woff2] Fix memory leak.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28148
+
+ * src/sfnt/sfwoff2.c (woff2_open_font): Reject fonts that have
+ multiple tables with the same tag. While not explicitly forbidden
+ in the OpenType specification, it is implicitly forbidden by
+ describing a binary search algorithm for tables that only works
+ reliably if table tags are unique.
+
+2021-02-22 Werner Lemberg <wl@gnu.org>
+
+ * CMakeLists.txt: Update location of `LICENSE.TXT`.
+
+ Fixes #1035.
+
+2021-02-19 Werner Lemberg <wl@gnu.org>
+
+ * builds/unix/ax_pthread.m4: Update from 'autoconf-archive'.
+
+ A bunch of fixes were added recently to its git repository.
+
+2021-02-17 Werner Lemberg <wl@gnu.org>
+
+ [unix] Updates for autoconf 2.71.
+
+ This fixes warnings reported by autoupdate.
+
+ * builds/unix/ax_pthread.m4: Replace `as_echo` with `AS_ECHO`.
+
+ * builds/unix/configure.raw: Remove obsolete `AC_HEADER_STDC`.
+ Don't escape back quotes in messages for `AC_MSG_WARN`.
+
+2021-02-16 Werner Lemberg <wl@gnu.org>
+
+ * builds/toplevel.mk: Fix previous commit.
+
+ <top_level>: Use `TOP_DIR` in `wildcard` function.
+ (check_out_submodule, copy_submodule): Move down to come after
+ definition of `all` rule.
+ Call `mkdir` conditionally.
+
+2021-02-16 Werner Lemberg <wl@gnu.org>
+
+ * builds/toplevel.mk: Use rules for handling 'dlg'.
+
+ Suggested by Alexei.
+
+ (check_out_submodule, copy_submodule): New targets.
+ <top-level>: Replace calls to `shell` with rules.
+
+2021-02-16 Werner Lemberg <wl@gnu.org>
+
+ * builds/toplevel.mk: Avoid side effects of `shell`.
+
+ We use a dummy variable to catch its output. Otherwise the `make`
+ program is going to interpret the return value of `shell`; this can
+ cause obscure warning or error messages or even be harmful.
+
+2021-02-16 Werner Lemberg <wl@gnu.org>
+
+ Move 'dlg' submodule to `subprojects` directory.
+
+ This is for future changes with Meson, which doesn't allow a
+ different name for its `subprojects` directory. Having both a
+ `submodules` and a `subprojects` directory is confusing.
+
+ * .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR,
+ DLG_SRC_DIR): Updated.
+
+ * builds/toplevel.mk (<top-level>, do-dist),
+ builds/windows/vc2010/script.bat: Updated.
+
+ * src/tools/no-copyright: Updated.
+
+2021-02-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Update paint format values to support non-variable paints.
+
+ * freetype.h (FT_PaintFormat): Update paint format identifiers after
+ a specification change. The specification was updated to have
+ sibling formats, variable and non-variable variants for each.
+ Reflect that here.
+
+ * sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as
+ the non-variable formats no longer have them.
+
+2021-02-15 Daniel E <daniel.engberg.lists@pyret.net>
+
+ * CMakeLists.txt: Improve 'bz2' support.
+
+ Not all distributions such as FreeBSD provide a `.pc` file for
+ '(lib)bz2' so follow autotools and add it to `Libs.private` instead.
+
+2021-02-13 Werner Lemberg <wl@gnu.org>
+
+ * src/tools/update-copyright-year: Fix single-year entry handling.
+
+ The fix from 2021-01-17 didn't cover the case where the year to be
+ updated is identical to the current year.
+
+2021-02-13 Werner Lemberg <wl@gnu.org>
+
+ Add new function `FT_Get_Transform`.
+
+ See
+
+ https://github.com/harfbuzz/harfbuzz/issues/2428
+
+ for some reasons to introduce this function.
+
+ * include/freetype/freetype.h, src/base/ftobjs.c (FT_Get_Transform):
+ Implement it.
+
+2021-02-12 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ Decorate `qsort` callbacks with `cdecl`.
+
+ * include/freetype/internal/compiler-macros.h (FT_COMPARE_DEF):
+ Add new macro.
+
+ * src/base/ftrfork.c, src/bdf/bdflib.c, src/gxvalid/gxvcommn.c,
+ src/psaux/afmparse.c, src/psnames/psmodule.c, src/type1/t1afm.c,
+ src/sfnt/sfwoff.c, src/sfnt/sfwoff2.c: Update `qsort` callbacks.
+
+ Fixes #1026 when compiling FreeType with an unusual calling
+ convention while the C library function `qsort` still expects
+ `cdecl`.
+
+2021-02-10 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Implement 'COLR' v1 sweep gradients.
+
+ * freetype.h (FT_PaintSweepGradient): Add `FT_PaintSweepGradient` to
+ represent a 'COLR' v1 sweep gradient.
+ Update format.
+ (FT_PaintFormat): Update shifted paint formats.
+ Sync with spec.
+ * sfnt/ttcolr.c (read_paint): Logic to parse sweep gradients.
+ Fix struct access in radial gradient implementation.
+
+2021-02-09 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Provide optional root transform for 'COLR' v1 glyph graph.
+
+ * include/freetype/freetype.h (FT_Get_Color_Glyph_Paint):
+ Additional function argument `root_transform` to control whether
+ root transform should be returned.
+ (FT_OpaquePaint): Additional tracking field to denote whether
+ root transform is to be returned.
+ * include/freetype/internal/sfnt.h
+ (TT_Get_Color_Glyph_Paint_Func): Propagate additional argument.
+ * src/base/ftobjs.c (FT_Get_Color_Glyph_Paint): Ditto.
+ * src/sfnt/ttcolr.c (tt_face_get_colr_glyph_paint): Return root
+ transform reflecting the size and tranform configured on
+ `FT_Face`.
+ (read_paint): Initialize and track status of insert_root_transform
+ flag.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ * meson.build: s/freetype2_dep/freetype_dep/.
+
+ Many projects (e.g., fontconfig, cairo) hardcode the `freetype_dep`
+ variable name to use FreeType as subproject because that was the
+ variable name in Centricular's Meson port of FreeType. While they
+ should stop hardcoding that variable name, it does not cost us
+ anything to keep using that name to ease transition.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ [meson] Fix handling of HarfBuzz library.
+
+ * meson.build (harfbuzz_dep): Do not fall back to HarfBuzz by
+ default.
+
+ Otherwise it causes a dependency cycle:
+
+ cairo => fontconfig => freetype2 => harfbuzz => cairo
+
+ Meson will still fall back to HarfBuzz subprojects if the `harfbuzz`
+ option is set to `enabled` instead of `auto` and a
+ `subprojects/harfbuzz.wrap` file is present. In that case it is the
+ responsibility of the main project to set the proper options on each
+ subproject to break the dependency cycle.
+
+ Fixes: #1028.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ [meson] Fix dependency lookup and generate `ftconfig.h`.
+
+ - zlib: If not found on the system, meson can build it as a
+ subproject. We thus never use the (outdated) zlib support that
+ comes with FreeType. Doing so has the additional advantage that
+ the zlib code can be shared with other projects like GLib if both
+ are subprojects of an application.
+ - harfbuzz: Build as a subproject if not found on the system.
+ - 'QUESTION: What if the compiler doesn't support `-D` but uses `/D`
+ instead as on Windows?' Answer: Meson translate arguments for us.
+ - visibility: Replace self-made code with meson-specific solution.
+
+ * meson.build (ft2_defines): Rewrite logic to set and handle it.
+ (process_header_command): New variable, previously called
+ `ftoption_command`.
+ (ftoption_command, ftconfig_command): New variables.
+ (zlib_option): Removed.
+ (zlib_dep): New variable.
+ (ft2_deps): Updated.
+ (harfbuzz_dep): Updated.
+ (ftconfig_h_in, ftconfig_h): New variables.
+ (ft2_sources): Updated.
+ (ft2_lib): Updated, handle visibility.
+ (summary): Updted.
+
+ * meson_options.txt (zlib): Updated.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ * meson.build: Fix resource compilation on Windows.
+
+ This is copied from GStreamer's meson port of FreeType.
+
+ (ft2_sources): Add both debug and resource file (the latter for
+ Windows only).
+ (ft2_debug_src): Removed.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ * meson.build: s/ft2_libtool_version/ft2_pkgconfig_version/.
+
+ (freetype2_dep): Use it.
+
+ `ft2_libtool_version` would be the shared library version, not the
+ one we should use in file `freetype2.pc`.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ * meson.build: Use `meson.override_dependency`.
+
+ This is a new meson mechanism to avoid other projects to hard-code
+ the `freetype2_dep` variable name in their build definition. It
+ also ensures that meson does not mix system and subproject versions
+ of FreeType inside of the same project.
+
+ Also remove outdated TODO because `declare_dependency` was already
+ there.
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ * meson.build (bzip2_dep): Simplify.
+
+ We remove `static:false` from `find_library('bz2')`.
+
+ I don't know whether the previous code was a workaround for an old
+ meson bug, but at least with version >=0.55.0 (which FreeType uses)
+ it picks the shared library when both are available.
+
+ File `freetype2.pc` still contains the full path to file `libbz2.so`
+ instead of `-lbz2` – that we need to do this is a meson bug even
+ present in the current version (0.57.0).
+
+2021-02-09 Xavier Claessens <xavier.claessens@collabora.com>
+
+ * meson.build: Set project version.
+
+2021-02-04 Werner Lemberg <wl@gnu.org>
+
+ [base] Fix Netpbm tracing message.
+
+ * src/base/ftobjs.c (FT_Render_Glyph_Internal): Don't emit Netpbm
+ warning if there is nothing to output.
+
+2021-02-04 Werner Lemberg <wl@gnu.org>
+
+ * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.
+
+ This ensures good logging output, with all lines having a proper
+ prefix (if requested).
+
+ This is a continuation of a similar patch from 2020-12-02, which
+ missed some locations.
+
+2021-02-03 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * builds/unix/configure.raw [mmap]: Restore default path.
+
+ Fixes #1023.
+
+2021-02-03 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Fix integer overflow.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30154
+
+ * src/psaux/psblues.c (cf2_blues_capture): Use `SUB_INT32`.
+
+2021-02-02 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * builds/unix/configure.raw [mmap support]: Explicitly handle Windows.
+
+ Fixes #1024.
+
+2021-01-31 Werner Lemberg <wl@gnu.org>
+
+ * builds/unix/configure.raw [mmap support]: Correctly handle Windows.
+
+ Fixes #1024.
+
+2021-01-31 Werner Lemberg <wl@gnu.org>
+
+ * builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.
+
+2021-01-31 Werner Lemberg <wl@gnu.org>
+
+ Always provide logging API.
+
+ It's easier to have stubs if FT_DEBUG_LOGGING is undefined than to
+ modify `ftexport.sym` conditionally.
+
+ Problem reported by Alexei.
+
+ * src/base/ftdebug.c: Include `ftlogging.h`.
+ (FT_Trace_Set_Level, FT_Trace_Set_Default_Level, FT_Set_Log_Handler,
+ FT_Set_Default_Log_Handler) [!FT_DEBUG_LOGGING]: Provide stubs.
+
+2021-01-31 Werner Lemberg <wl@gnu.org>
+
+ * builds/unix/configure.raw: Fix typo.
+
+ Bug introduced in Vincent's last commit bb33f03.
+
+ Fixes issue #1021.
+
+2021-01-27 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/base/ftstroke.c (FT_Stroker_EndSubPath): Ignore tiny gaps.
+
+ Fixes bug #1020.
+
+2021-01-27 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [stroker] Minor clean-up.
+
+ * src/base/ftstroke.c (FT_Stroker_{ConicTo,CubicTo}): Reset the last
+ line length.
+ (FT_Stroker_EndSubPath): Call `ft_stroker_process_corner'.
+
+2021-01-27 Vincent Torri <vincent.torri@gmail.com>
+
+ * builds/windows/ftsystem.c: Add shared memory support on Windows.
+
+ * CMakeLists.txt (BASE_SRCS), builds/unix/configure.raw (FTSYS_SRC),
+ builds/windows/vc2010/freetype.vcxproj,
+ builds/windows/visualc/freetype.vcproj, meson.build (ft2_sources):
+ Add it (conditionally).
+
+2021-01-23 Werner Lemberg <wl@gnu.org>
+
+ Require HarfBuzz 2.0.0.
+
+ This is needed to make commit f1f9705f9 work.
+
+ * CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw
+ (harfbuzz_pkg), meson.build (harfbuzz_dep): Updated.
+
+2021-01-22 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * autogen.sh: Absorb `version.sed'.
+ * version.sed: Removed.
+
+2021-01-19 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * srd/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix return value.
+
+2021-01-15 Nikolaus Waxweiler <madigens@gmail.com>
+
+ [afshaper] Fix hb_ot_tags_from_script deprecation warning.
+
+ * autofit/afshaper.c (af_shaper_get_coverage): Copy the source code
+ of the function as suggested in
+ https://github.com/harfbuzz/harfbuzz/issues/2737 and adjust to handle
+ at most three tags.
+
+2021-01-17 Werner Lemberg <wl@gnu.org>
+
+ * src/tools/update-copyright-year: Fix single-year entry handling.
+
+2021-01-16 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * builds/unix/unixddef.mk: Remove the second DEVEL_DIR definition.
+
+2021-01-14 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Additional checks for 'colr' table presence.
+
+ * sfnt/ttcolr.c (tt_face_get_colr_glyph_paint,
+ tt_face_get_colorline_stops, tt_face_get_paint): Additional checks
+ for whether colr table is present. Prevents crashes when these
+ methods are called on non-COLR fonts.
+
+2021-01-13 Dominik Röttsches <drott@chromium.org>
+
+ Add config option to test for 'COLR' v1 support in headers.
+
+ * include/freetype/config/ftoption.h (TT_SUPPORT_COLRV1): New macro
+ so that clients can test whether the FreeType checkout that they are
+ building against supports the 'COLR' v1 API. This is intended to be
+ a temporary solution until 'COLR' v1 support is released in a
+ FreeType version and such a check can be made by using the version
+ number instead.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ [base] Fill 'COLR' v1 API templates to make them work (#59703).
+
+ * src/base/ftobjs.c (FT_Get_Color_Glyph_Paint, FT_Get_Paint_Layers,
+ FT_Get_Paint, FT_Get_Colorline_Stops): Add basic sanity checks,
+ check for existence of `FT_Face`, check arguments and delegate calls
+ for the respective 'COLR' v1 API to the SFNT driver.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Register 'COLR' v1 API in driver (#59703).
+
+ * include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_Paint_Func,
+ TT_Get_Paint_Layers_Func, TT_Get_Colorline_Stops_Func,
+ TT_Get_Paint_Func): New function pointer types.
+ (SFNT_Interface): Add them.
+ (FT_DEFINE_SFNT_INTERFACE): Updated.
+
+ * src/sfnt/sfdriver.c (PUT_COLOR_LAYERS_V1): New macro.
+ (sfnt_interface): Add new function pointers.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Add 'COLR' v1 API to retrieve color layers (#59703).
+
+ * src/sfnt/ttcolr.c (tt_face_get_paint_layers): New function to get
+ the layers of a `PaintColrLayers` table in the font, using an
+ `FT_LayerIterator` from an `FT_PaintColrLayers` object retrieved via
+ `tt_face_get_paint`.
+
+ * src/sfnt/ttcolr.h: Updated.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Add 'COLR' v1 API to iterate color stops (#59703).
+
+ * src/sfnt/ttcolr.c (tt_face_get_colorline_stops): New function to
+ return the current `FT_ColorStop` object from `FT_ColorStopIterator`.
+ Also increment the iterator.
+
+ * src/sfnt/ttcolr.h: Updated.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Add API to get actual paint from `FT_OpaquePaint` (#59703).
+
+ * src/sfnt/ttcolr.c (tt_face_get_paint): New function to resolve an
+ `FT_OpaquePaint` paint reference into an `FT_COLR_Paint` object of a
+ certain format, which contains the detailed information stored in a
+ paint of the respective format.
+ (read_paint): New function to provide the format specific parsing
+ and to populate the data members of each specific `FT_COLR_Paint`
+ subtype.
+ (read_color_line): New function to parse retrieved color line
+ information into an `FT_ColorLine` object, which has information
+ about the color line extend mode as well as an
+ `FT_ColorStopIterator` object.
+
+ * src/sfnt/ttcolr.h: Updated.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ [sfnt] Add API to retrieve 'COLR' v1 root paint (#59703).
+
+ * src/sfnt/ttcolr.c (BaseGlyphV1Record): New structure.
+ (tt_face_load_colr): Handle version 1 table header.
+ (find_base_glyph_v1_record): New auxiliary function.
+ (tt_face_get_colr_glyph_paint): New function to find the root
+ `FT_OpaquePaint` object for a given glyph ID.
+
+ * src/sfnt/ttcolr.h: Updated.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ Add new methods required for 'COLR' v1 to public API (#59703).
+
+ * include/freetype/freetype.h (FT_Get_Color_Glyph_Paint): New method
+ for retrieving the root paint object for a color glyph by specifying
+ a glyph ID.
+ (FT_Get_Paint_Layers): New method for retrieving the layers of a
+ `PaintColorGlyph`.
+ (FT_Get_ColorLine_Stops): New method for retrieving the stops of a
+ color.
+ (FT_Get_Paint): New method for resolving an `FT_OpaquePaint` into an
+ `FT_COLR_Paint` object.
+
+2020-12-16 Dominik Röttsches <drott@chromium.org>
+
+ Add types required for 'COLR' v1 to public API (#59703).
+
+ * include/freetype/freetype.h (FT_PaintFormat, FT_ColorStopIterator,
+ FT_ColorIndex, FT_ColorStop, FT_PaintExtend, FT_ColorLine,
+ FT_Affine23, FT_CompositeMode, FT_OpaquePaint, FT_PaintColrLayers,
+ FT_PaintSolid, FT_PaintLinearGradient, FT_PaintRadialGradient,
+ FT_PaintGlyph, FT_PaintColrGlyph, FT_PaintTransformed,
+ FT_PaintTranslate, FT_PaintRotate, FT_PaintSkew, FT_PaintComposite,
+ FT_COLR_Paint): Adding structs and enum to represent paint format,
+ color stop information, gradient extend information, structs to
+ reference paint offsets, and to define transforms and compositions.
+ Adding a union type to represent the union of the structs,
+ distinguished by `FT_PaintFormat`.
+
+2021-01-10 Werner Lemberg <wl@gnu.org>
+
+ * builds/*: s/BUILD_DIR/PLATFORM_DIR/.
+
+ The old variable name caused confusion.
+
+2021-01-08 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [builds] Revert `FTMODULE_H' changes.
+
+ * builds/toplevel.mk, builds/freetype.mk: Revert changes.
+
+2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [builds/windows] Fix up DLG build with VC++.
+
+ * builds/windows/vc2010/script.bat: Copy headers to include/.
+ * builds/windows/vc2010/freetype.vcxproj: Remove DLG paths.
+
+2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [builds] Relocate `FTMODULE_H'.
+
+ * builds/toplevel.mk: Place `FTMODULE_H' in include/.
+ * builds/freetype.mk: Simplify included path.
+
+2021-01-07 Werner Lemberg <wl@gnu.org>
+
+ Fix ABI incompatibility.
+
+ * include/freetype/ftimage.h (FT_Pixel_Mode): Don't insert
+ `FT_PIXEL_MODE_GRAY16' but append it.
+
+ * src/base/ftobjs.c (pixel_modes): Updated.
+
+2021-01-07 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [dlg] Move the headers to include/dlg to simplify their use.
+
+ * autogen.sh, builds/toplevel.mk: Copy headers to include/dlg.
+ * builds/freetype.mk, builds/windows/vc2010/freetype.vcxproj:
+ Simplify included path.
+ * include/freetype/internal/ftdebug.h: Simplify #include.
+ * src/dlg/rules.mk, .gitignore: Updated.
+
+2021-01-06 Werner Lemberg <wl@gnu.org>
+
+ * meson.build: Add summary.
+
+ Based on a patch from Vincent Torri <vincent.torri@gmail.com>.
+
+2021-01-06 Torsten Hilbrich <emacs.nolkaf@hilbrich.tk>
+
+ * meson.build: Fix 'png' build option (#59458).
+
+ Without this patch, 'png' is always required.
+
+2021-01-04 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [builds/windows] Add SDF to VC2010 project.
+
+ * builds/windows/vc2010/freetype.vcxproj: Updated;
+ AfterBuild conveniences.
+
+2020-12-26 Werner Lemberg <wl@gnu.org>
+
+ [sdf] Use 'counter-clockwise', not 'anti-clockwise'.
+
+ We prefer US nomenclature.
+
+ * src/sdf/ftsdf.c (SDF_Contour_Orientation):
+ s/SDF_ORIENTATION-ACW/SDF_ORIENTATION_CCW/.
+ Update all users.
+
+2020-12-26 Werner Lemberg <wl@gnu.org>
+
+ * src/base/ftobjs.c (pixel_modes): Updated.
+
+2020-12-26 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Remove custom memory tracker.
+
+ The internal FreeType memory tracker is sufficient.
+
+ * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER, SDF_MemoryUser,
+ sdf_alloc, sdf_free, SDF_ALLOC, SDF_FREE,
+ SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,
+ SDF_MEMORY_TRACKER_DONE): Removed.
+
+ s/SDF_ALLOC/FT_ALLOC/.
+ s/SDF_FREE/FT_FREE/.
+
+ Other updates.
+
+2020-12-24 Werner Lemberg <wl@gnu.org>
+
+ [sdf] Fix `make multi`.
+
+ * src/sdf/ftsdf.c: Include `ftoutln.h`.
+
+2020-12-24 Werner Lemberg <wl@gnu.org>
+
+ [sdf] Fix tracing.
+
+ * include/freetype/internal.fttrace.h: Add 'bsdf' component.
+
+ * src/sdf/ftbsdf.c, src/sdf/ftsdf.c (FT_COMPONENT): Define.
+
+2020-08-21 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add debugging function.
+
+ * src/sdf/ftsdf.c (sdf_shape_dump): New function.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add 'bsdf' renderer to 'sdf' module.
+
+ * src/sdf/ftsdfrend.c (ft_bsdf_render): New function.
+
+ (ft_bitmap_sdf_renderer_class): New structure.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add interface functions for the 'bsdf' rasterizer.
+
+ * src/sdf/ftsdf.c (bsdf_raster_new, bsdf_raster_reset,
+ bsdf_raster_set_mode, bsdf_raster_render, bsdf_raster_done): New
+ functions.
+
+ (ft_bitmap_sdf_raster): New variable.
+
+ * src/sdf/ftsdf.h: Updated.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add function to copy SDF data into output bitmap.
+
+ * src/sdf/ftbsdf.c (finalize_sdf): New function.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add '8-point sequential Euclidean distance mapping' algorithm.
+
+ * src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass,
+ edt8): New functions.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add function to copy source bitmap to distance map.
+
+ * src/sdf/ftbsdf.c (bsdf_init_distance_map): New function.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add functions to compute pixel edge distances.
+
+ * src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge):
+ New functions.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add function to find edge pixels in a grid of alpha values.
+
+ * src/sdf/ftbsdf.c (bsdf_is_edge): New function.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add essential structures for the 'bsdf' rasterizer.
+
+ * src/sdf/ftbsdf.c (ONE): New macro.
+ (BSDF_TRaster, ED, BSDF_Worker): New structures.
+ (zero_ed): New constant.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add 'sdf' module to non-gnumake build systems.
+
+ * include/freetype/config/ftmodule.h: Add both the 'sdf' and 'bsdf'
+ renderers to the list of modules.
+
+ * CMakeLists.txt (BASE_SRCS): Add 'sdf' single-object module.
+
+2020-08-20 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Added basic overlapping contour support.
+
+ * src/sdf/ftsdf.c (sdf_generate_with_overlaps): New function.
+ (sdf_raster_render): Enable it.
+
+2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add build infrastructure.
+
+ * src/sdf/module.mk, src/sdf/rules.mk: New files.
+
+ * src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration.
+
+ * include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition
+ for the 'sdf' module.
+
+ * include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace
+ definition for the `sdf' module.
+
+ * modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of
+ rasterizers.
+
+2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add interface functions for the 'sdf' rasterizer.
+
+ * src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset,
+ sdf_raster_set_mode, sdf_raster_render, sdf_raster_done): New
+ functions.
+ (ft_sdf_raster): New structure.
+
+2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add subdivision and bounding box optimization.
+
+ * src/sdf/ftsdf.c (sdf_generate_bounding_box): New function, which
+ is an optimized version of `sdf_generate`.
+ (sdf_generate_subdivision): New function.
+
+2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add function to generate SDF.
+
+ * src/sdf/ftsdf.c (sdf_generate): New function, currently disabled.
+ This is a proof-of-concept implementation: It doesn't use any
+ optimization, it simply checks all grid points against all contours.
+
+2020-08-19 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add functions to get shortest distance from any edge/contour.
+
+ * src/sdf/ftsdf.c (sdf_edge_get_min_distance): New function.
+ (sdf_contour_get_min_distance): New function, currently disabled.
+
+2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add shortest distance finding functions.
+
+ * src/sdf/ftsdf.c (get_min_distance_line, get_min_distance_conic,
+ get_min_distance_cubic): New functions. Note that
+ `get_min_distance_conic` comes with two implementations (using an
+ analytical and an iterative method, to be controlled with the
+ `USE_NEWTON_FOR_CONIC` macro).
+
+2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add function to resolve corner distances.
+
+ * src/sdf/ftsdf.c (resolve_corner): New function.
+
+2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add essential math functions.
+
+ * src/sdf/ftsdf.c (cube_root, arc_cos) [!USE_NEWTON_FOR_CONIC]: New
+ auxiliary functions.
+
+ * src/sdf/ftsdf.c (solve_quadratic_equation, solve_cubic_equation)
+ [!USE_NEWTON_FOR_CONIC]: New functions.
+
+2020-08-18 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add utility functions for contours.
+
+ * src/sdf/ftsdf.c (get_control_box, get_contour_orientation): New
+ functions.
+ (split_conic, split_cubic, split_sdf_conic, split_sdf_cubic,
+ split_sdf_shape): New functions.
+
+2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add functions to decompose `FT_Outline`.
+
+ * src/sdf/ftsdf.c (sdf_move_to, sdf_line_to, sdf_conic_to,
+ sdf_cubic_to): New auxiliary decomposition functions.
+ (sdf_compose_funcs): New structure.
+ (sdf_outline_decompose): New function.
+
+2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Structs, enums, macros, and functions for 'sdf' rasterizer.
+
+ * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER)
+ [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New macros.
+ (SDF_MemoryUser) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New
+ struct for memory usage tracing.
+ (sdf_alloc, sdf_free) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New
+ functions for memory usage tracing.
+
+ (SDF_ALLOC, SDF_FREE): New macros for memory management.
+ (SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,
+ SDF_MEMORY_TRACKER_DONE): New macros to set up memory usage tracing.
+
+ (USE_NEWTON_FOR_CONIC, MAX_NEWTON_DIVISIONS, MAX_NEWTON_STEPS,
+ CORNER_CHECK_EPSILON, CG_DIMEN): New configuration macros for
+ controlling the process of finding the shortest distance.
+
+ (MUL_26D6, VEC_26D6_DOT): New auxiliary macros.
+
+ (SDF_TRaster, SDF_Edge, SDF_Contour, SDF_Shape, SDF_Signed_Distance,
+ SDF_Params): New structs for setting up SDF data.
+ (SDF_Edge_Type, SDF_Contour_Orientation): New enums for SDF data.
+
+ (zero_vector, null_edge, null_contour, null_shape, max_sdf): Useful
+ constants.
+
+ (sdf_edge_new, sdf_edge_done, sdf_contour_new, sdf_contour_done,
+ sdf_shape_new, sdf_shape_done): New constructors and destructors.
+
+2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add raster parameters structure.
+
+ * src/sdf/ftsdf.h (SDF_Raster_Params): New structure.
+
+ * src/sdf/sdf.c: Include source files in order to make a single
+ object of the module.
+
+2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add 'sdf' renderer.
+
+ * src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface
+ functions.
+ Also add functions to set and get properties.
+
+2020-08-17 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add common elements for 'sdf' and 'bsdf' renderers.
+
+ * src/sdf/ftsdfrend.h (SDF_Rendere_Module, ft_sdf_renderer_class,
+ ft_bitmap_sdf_renderer_class): New structures.
+
+ * src/sdf/ftsdfcommon.h (DEFAULT_SPREAD, MIN_SPREAD_MAX_SPREAD,
+ USE_SQUARED_DISTANCES): New macros.
+ (FT_INT_26D6, FT_INT_16D16, FT_26D6_16D16): New macros.
+ (FT_CALL, VECTOR_LENGTH_16D16): New macros.
+ (FT_26D6_Vec, FT_16D16_Vec, FT_16D16, FT_26D6, FT_6D10, FT_CBox):
+ New typedefs.
+ (square_root): New macro.
+
+ * src/sdf/ftsdferrs.h: Add module error setup.
+
+2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [sdf] Add files for new 'sdf' module.
+
+ Here is a breakdown of what the files will contain.
+
+ * src/sdf/ftsdfrend.c, src/sdf/ftsdfrend.h: The 'sdf' and 'bsdf'
+ renderers.
+
+ * src/sdf/ftsdf.c, src/sdf/ftsdf.h: The rasterizer for the 'sdf'
+ renderer.
+ * src/sdf/ftbsdf.c, src/sdf/ftbsdf.h: The rasterizer for the 'bsdf'
+ renderer.
+
+ * src/sdf/ftsdfcommon.h: Commmon properties and functions for both
+ rasterizers.
+ * src/sdf/ftsdferrs.h: Common error defines.
+
+ * src/sdf/sdf.c: For building a single object of the entire module.
+
+2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [base] Allow renderers of different formats.
+
+ * src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the
+ glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`. The forthcoming
+ 'bsdf' renderer will require bitmaps for processing.
+
+ * src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove
+ renderer's glyph format check before adding and removing them. The
+ 'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.
+
+2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ Add data types required for the forthcoming 'sdf' module.
+
+ * include/freetype/freetype.h (FT_Render_Mode): Add new render mode
+ `FT_RENDER_MODE_SDF`, which will be used to generate SDF.
+
+ * include/freetype/ftimage.h (FT_Pixel_Mode): Add new pixel mode
+ `FT_PIXEL_MODE_GRAY16`, which will be the output of the 'sdf'
+ module.
+ (FT_RASTER_FLAG_SDF): New raster flag to be used internally by the
+ 'sdf' module.
+
+ * include/freetype/fttypes.h (FT_F6Dot10): New data type.
+
+2020-08-16 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ [base] Allow renderers of different formats.
+
+ * src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the
+ glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`. The forthcoming
+ 'bsdf' renderer will require bitmaps for processing.
+
+ * src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove
+ renderer's glyph format check before adding and removing them. The
+ 'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.
+
+2020-12-23 Werner Lemberg <wl@gnu.org>
+
+ * builds/windows/detect.mk (COPY): Make it work with `shell`.
+
+ Without this patch, we get the error
+
+ builds/toplevel.mk:127: *** missing separator. Stop.
+
+ Reported by Anuj, with a solution from Alexei.
+
+2020-12-23 Ignacio Casal Quinteiro <qignacio@amazon.com>
+
+ * meson.build (ft2_defines): Fix builds on Windows.
+
+2020-12-18 Tatsuyuki Ishi <ishitatsuyuki@gmail.com>
+
+ [autofit] Fix double division in stem darkening.
+
+ The old code used to divide the darkening amount by em_ratio twice,
+ leading to unnecessarily bold stems on certain fonts with higher
+ units per em (e.g. Inter). This patch fixes it.
+
+ The return value of af_loader_compute_darkening was also changed to
+ use 16.16 fixed point to get rid of a redundant truncation operation.
+ This should slightly improve the precision, although it's still
+ bottlenecked by the emboldening function, which uses 26.6 fixed point.
+
+ * src/autofit/afloader.[ch]
+ (af_loader_compute_darkening): Return FT_Fixed.
+ (af_loader_embolden_glyph_in_slot): Revise calculations.
+
+2020-12-17 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): New public macro.
+
+ The driver name is needed for `FT_Property_Set' and `FT_Property_Get'.
+
+2020-12-16 Chris Liddell <chris.liddell@artifex.com>
+
+ [truetype] Fix incremental metrics (#59503).
+
+ * src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph):
+ Previously, the code would populate the phantom points before
+ calling the `get_glyph_metrics` callback. For formats like PCL XL
+ format 1, class 2 downloaded fonts (where metrics are removed from
+ the TTF header), this causes problems when the hinting program uses
+ the phantom points (misplaced and distorted glyphs) due to the
+ metrics being unset (all zeros).
+ (tt_get_metrics_incr_overrides): Renamed to...
+ (tt_get_metrics_incremental): ... this. Updated caller
+
+ * include/freetype/ftincrem.h: Update the documentation to make it
+ clearer that `get_glyph_metrics` is to retrieve metrics from a
+ non-standard source, but *not* for the purpose of imposing custom
+ metrics.
+
+2020-12-14 Werner Lemberg <wl@gnu.org>
+
+ [type42] Pacify static analysis tools (#59682).
+
+ * src/type42/t42objs.c (T42_Size_Init, T42_GlyphSlot_Init): Avoid
+ warnings about uninitialized variables.
+
+2020-12-07 Werner Lemberg <wl@gnu.org>
+
+ * builds/unix/configure.raw: Don't set `FT_DEBUG_LOGGING`.
+
+ All debug options are handled exclusively in `ftoption.h`.
+
+2020-12-07 Werner Lemberg <wl@gnu.org>
+
+ * src/*: More fixes for using a '\n' in `FT_TRACE` and `FT_ERROR`.
+
+2020-12-07 Werner Lemberg <wl@gnu.org>
+
+ */*: s/FT_LOGGING/FT_DEBUG_LOGGING/.
+
+2020-12-05 Werner Lemberg <wl@gnu.org>
+
+ * builds/toplevel.mk (do-dist): Remove `submodules` directory.
+
+2020-12-02 Werner Lemberg <wl@gnu.org>
+
+ * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.
+
+ This ensures good logging output, with all lines having a proper
+ prefix (if requested).
+
+2020-12-02 Werner Lemberg <wl@gnu.org>
+
+ [base] Don't close 'stderr' after logging.
+
+ * src/base/ftdebug.c, builds/windows/ftdebug.c (ft_logging_deinit):
+ Fix it.
+
+2020-12-02 Werner Lemberg <wl@gnu.org>
+
+ * submodules/dlg: Updated to commit 9f0c8b22.
+
+2020-12-02 Werner Lemberg <wl@gnu.org>
+
+ * src/bdf/bdflib.c: Fix `-Wformat` warning.
+
+2020-12-02 Werner Lemberg <wl@gnu.org>
+
+ Improve setup for 'dlg' library.
+
+ * autogen.sh (copy_submodule_file), builds/toplevel.mk: Redirect
+ stderr to `/dev/null`.
+
+ * builds/toplevel.mk: Move code block to handle 'dlg' stuff into
+ `check_platform` conditional.
+ Also fix wildcard expressions for guarding `git submodule` commands.
+ Also make file copying work with non-Unix platforms (untested).
+
+2020-12-01 Werner Lemberg <wl@gnu.org>
+
+ [build] Use gcc (and clang) in C99 mode.
+
+ Other compilers are unchanged.
+
+ * builds/compiler/gcc-dev.mk, builds/compiler/gcc.mk (ANSIFLAGS):
+ s/-ansi/-std=c99/.
+
+ * builds/freetype.mk (FT_CFLAGS): Remove `-std=c99`.
+
+ * builds/unix/configure.raw: Handle C99.
+ Remove no longer needed test for gcc 4.6 and earlier.
+
+2020-12-01 Werner Lemberg <wl@gnu.org>
+
+ [dlg] Fix compiler warnings.
+
+ * src/dlg/dlgwrap.c: Duplicate some feature test macros from
+ `dlg.c`, which must come first before loading standard headers. For
+ example, `freetype.h` loads `stdio.h` if compiled in debug mode.
+
+2020-12-01 Werner Lemberg <wl@gnu.org>
+
+ * src/type42/t42parse.c: Fix `-Wformat` warnings.
+
+2020-12-01 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [builds/unix] Check for 'pthread' library.
+
+ * builds/unix/ax_pthread.m4: New file, taken from 'autoconf-archive'
+ git repository.
+
+ * builds/unix/configure.raw: Check for 'pthread'; also check whether
+ it works.
+
+2020-12-01 Werner Lemberg <wl@gnu.org>
+
+ [base] Implement vertical alignment of log printing.
+
+ Based on a patch by Priyesh.
+
+ * include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):
+ New macro.
+
+ * src/base/ftdebug.c, builds/windows/ftdebug.c (ft_log_handler):
+ Print logs after a fixed width to handle different lengths of
+ `FT_COMPONENT` entries.
+ Use `ft_strrchr` to check for final newline character.
+
+2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ Update logging related documentation.
+
+ * docs/DEBUG: Updates related to `FT_LOGGING`.
+
+ * README.git: Updates related to logging.
+
+2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ * src/*: Fix `-Wformat` warnings.
+
+2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [builds/windows] Changes to build 'dlg' with FreeType on Windows.
+
+ We only support Visual C++ 2010 and newer.
+
+ * builds/windows/vc2010/script.bat: New windows batch file to copy
+ necessary 'dlg' files from `submodules/dlg` to `src/dlg`. This file
+ is used as a pre-built event in Visual C++.
+
+ * builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.
+
+ * builds/windows/vc2010/freetype.vcxproj.filters: Add
+ `src/dlgwrap.c`.
+
+ * builds/windows/vc2010/freetype.vcxproj
+ (AdditionalIncludeDirectories): Add include files of dlg for 'Debug'
+ and 'Debug Static' configurations on both 'x64' and 'win32'
+ platforms.
+ (PreprocessorDefinitions): Add `FT_LOGGING` for 'Debug' and 'Debug
+ Static' configurations on both 'x64' and 'win32' platforms.
+ Add `DLG_STATIC' for 'Debug' configuration on 'x64' and 'win32'
+ platforms.
+ (DisableLanguageExtensions): We need to disable the `/Za` option
+ when building 'dlg' with FreeType as 'dlg' strictly follows the C99
+ standard. Visual C++ produces behaves unexpectedly when
+ compiling a C99 file with `/Za` option enabled.
+
+2020-11-30 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [base] Add public API to change log handling function.
+
+ * include/freetype/ftlogging.h (FT_Custom_Log_Handler): New function
+ typedef to store the custom callback logging function.
+ (FT_Set_Log_Handler, FT_Set_Default_Log_Handler): New functions to
+ set and reset custom log handler.
+
+ * include/freetype/internal/ftdebug.h (custom_output_handler): New
+ variable to support a custom callback logging function.
+ (FT_Logging_Callback): A new function typedef to print log using
+ custom callback logging function, which is set using
+ `FT_Set_Log_Handler`.
+ (FT_Log): Use it.
+
+ * src/base/ftdebug.c (FT_Set_Log_Handler,
+ FT_Set_Default_Log_Handler, FT_Logging_Callback): Add function
+ definitions.
+
+2020-11-28 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [base] Add public API to change the levels of tracing components.
+
+ * include/freetype/ftlogging.h: New header file.
+
+ * include/freetype/internal/ftdebug.h [FT_LOGGING]: Include
+ `ftlogging.h`.
+
+ * src/base/ftdebug.c (ft_custom_trace_level): New variable.
+ (ft_debug_init): Update to support change of levels of tracing
+ components of FreeType at run-time.
+ (FT_Trace_Set_Level): New function to change the levels of tracing
+ components at run-time.
+ (FT_Trace_Set_Default_Level): New function to reset the levels of
+ tracing components back to default.
+
+2020-11-28 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [base] Updates to print timestamp and name of `FT_COMPONENT` in logs.
+
+ * include/freetype/internal/ftdebug.h (FT_LOGGING_TAG,
+ FT_LOGGING_TAG_): New macros to resolve the value of `FT_COMPONENT'
+ into a string.
+ (ft_add_tag, ft_remove_tag): New functions to add and remove dlg tags.
+
+ * src/base/ftdebug.c: Add new variables to control the logging of
+ timestamp and name of `FT_COMPONENT` along with actual logs.
+ (ft_add_tag, ft_remove_tag): Add function definitions.
+ (ft_log_handler): Updates to print timestamp and name of
+ `FT_COMPONENT`.
+ (ft_debug_init) [FT_LOGGING]: Users can now control the logging of
+ timestamp and name of `FT_COMPONENT` by adding tags in the
+ `FT2_DEBUG` environment variable.
+
+2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [base] Add functions and variables to print logs to a file.
+
+ * include/freetype/internal/ftdebug.h: Added dlg's header files.
+ (FT_LOG): New macro to redirect trace logs to dlg's API's whenever
+ `FT_LOGGING' is defined.
+ (ft_logging_init, ft_logging_deinit): New functions to handle
+ initialization and uninitialization of logging related variables.
+ (ft_log_handler): New function to handle logs of FreeType.
+
+ * src/base/ftdebug.c: Add necessary logging related variables.
+ (ft_logging_init, ft_logging_deinit, ft_log_handler): Add function
+ definitions.
+
+ * src/base/ftinit.c (FT_Init_FreeType) [FT_LOGGING]: Call
+ `ft_logging_init`.
+ (FT_Done_FreeType) [FT_LOGGING]: Call `ft_logging_deinit`.
+
+ * src/base/ftobjs.c (FT_New_Library): Call `ft_debug_init` only if
+ `FT_LOGGING` is not defined.
+
+2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ [builds] Necessary changes to make 'dlg' compile.
+
+ * autogen.sh (copy_submodule_files): New script to copy all the
+ necessary source and include files from `submodules/dlg` to
+ `src/dlg`.
+
+ * src/dlg/dlgwrap.c: New wrapper file for `src/dlg.c`. It enables
+ the build of 'dlg' if the `FT_LOGGING` macro is defined.
+
+ * src/dlg/rules.mk: New sub-Makefile.
+
+ * builds/freetype.mk (DLG_DIR): New variable to include the
+ header files of the 'dlg' library.
+ (INCLUDES): Add `DLG_DIR`.
+ (FT_CFLAGS): Add `-std=c99' flag.
+ Include `src/dlg/rules.mk` file to build 'dlg' library.
+ (OBJ_S, OBJ_M): Add `DLG_OBJS_M` and `DLG_OBJS_S`.
+
+ * builds/toplevel.mk: For builds directly from the git repository
+ we need to copy files from `submodule/dlg` to `src/dlg`.
+
+ * include/freetype/config/ftoption.h, devel/ftoption.h (FT_LOGGING):
+ New macro to enable or disable the logging facility in FreeType.
+
+2020-11-27 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ * .gitmodules: Add 'dlg' library's git repository as submodule.
+
+2020-12-01 Werner Lemberg <wl@gnu.org>
+
+ * src/tools/chktrcmp.py (trace_use_pat): Update to current use.
+
+2020-11-20 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [cff,cid,type1] Demote old engine for lack of CFF2.
+
+ * src/cff/cffobjs.c (cff_driver_init): Always default to Adobe engine.
+ * src/cid/cidobjs.c (cid_driver_init): Ditto.
+ * src/type1/t1objs.c (T1_Driver_Init): Ditto.
+
+2020-11-09 Werner Lemberg <wl@gnu.org>
+
+ * src/type42/t42parse.c (t42_parse_sfnts): More tracing messages.
+
+2020-11-04 Werner Lemberg <wl@gnu.org>
+
+ * meson.build: Fix .pc file generation.
+
+ For backwards compatibility we need the libtool version, not the .so
+ number.
+
+ Reported by Nikolaus.
+
+2020-10-28 Werner Lemberg <wl@gnu.org>
+
+ [truetype] Minor update to forthcoming OpenType 1.8.4 standard.
+
+ * src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Limit
+ size of `regionCount`.
+
+2020-10-26 Werner Lemberg <wl@gnu.org>
+
+ * meson.build: Fix 'harfbuzz' and 'brotli' build options (#59347).
+
+ Without this patch, 'harfbuzz' and 'brotli' are always required.
+
+ Patch submitted anonymously in Savannah bug report.
+
+2020-10-23 Ben Wagner <bungeman@google.com>
+
+ * src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak (#59322).
+
+ The issue is that `rows` is allocated but will not be freed in the
+ event that the call to `png_read_image` fails and calls `longjmp`.
+
+2020-10-20 Werner Lemberg <wl@gnu.org>
+
+ * Version 2.10.4 released.
+ ==========================
+
+
+ Tag sources with `VER-2-10-4'.
+
+ * docs/VERSION.TXT: Add entry for version 2.10.4.
+ * docs/CHANGES: Updated.
+
+ * README, src/base/ftver.rc, builds/windows/vc2010/index.html,
+ builds/windows/visualc/index.html,
+ builds/windows/visualce/index.html,
+ builds/wince/vc2005-ce/index.html,
+ builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
+ s/2.10.3/2.10.4/, s/2103/2104/.
+
+ * include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
+
+ * builds/unix/configure.raw (version_info): Set to 23:4:17.
+ * CMakeLists.txt (VERSION_PATCH): Set to 4.
+
+2020-10-19 Werner Lemberg <wl@gnu.org>
+
+ [sfnt] Fix heap buffer overflow (#59308).
+
+ This is CVE-2020-15999.
+
+ * src/sfnt/pngshim.c (Load_SBit_Png): Test bitmap size earlier.
+
+2020-10-17 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/tt{colr,cpal}.c: Fix signedness warnings from VC++.
+
+2020-10-17 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/sfnt/sfwoff2.c (Read255UShort): Tweak types to please VC++.
+
+2020-10-10 Werner Lemberg <wl@gnu.org>
+
+ * Version 2.10.3 released.
+ ==========================
+
+
+ Tag sources with `VER-2-10-3'.
+
+ * docs/VERSION.TXT: Add entry for version 2.10.3.
+
+ * README, src/base/ftver.rc, builds/windows/vc2010/index.html,
+ builds/windows/visualc/index.html,
+ builds/windows/visualce/index.html,
+ builds/wince/vc2005-ce/index.html,
+ builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
+ s/2.10.2/2.10.3/, s/2102/2103/.
+
+ * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
+
+ * builds/unix/configure.raw (version_info): Set to 23:3:17.
+ * CMakeLists.txt (VERSION_PATCH): Set to 3.
+
+2020-09-25 Werner Lemberg <wl@gnu.org>
+
+ [autofit] Synchronize with ttfautohint.
+
+ This corresponds to the following commits in the ttfautohint git
+ repository:
+
+ bb6842bd3bd437b7b4a7921b0376c860f5e73d18 Typo, formatting.
+ d5c91ddb1cb310257a3dfe9a8e20e1fc51335faa Add Medefaidrin script.
+
+ * src/autofit/afblue.dat: Add blue zone data for Medefaidrin.
+ * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
+
+ * src/autofit/afscript.h: Add Medefaidrin standard characters.
+
+ * src/autofit/afranges.c, src/autofit/afstyles.h: Add Medefaidrin
+ data.
+
+2020-09-25 Werner Lemberg <wl@gnu.org>
+
+ Move `scripts/make_distribution_archives.py` to `src/tools`.
+
+ * scr/tools/scripts/make_distribution_archives.py: (_TOP_DIR,
+ _SCRIPT_DIR): Updated to new location.
+ (main): s/shutils.copyfile/shutils.copy/ to preserve file
+ permissions.
+ (main): Prefix source file paths with `git_dir` while copying files
+ to allow calls of the script from other places than the top-level
+ directory.
+
+2020-09-24 Werner Lemberg <wl@gnu.org>
+
+ * src/cff/cffgload.c (cff_slot_load): Scale `vertBearingY`.
+
+ Towards the end of the the function there is a call to
+ `FT_Outline_Get_CBox` that retrieves the glyph bbox in scaled units.
+ That sets `horiBearing{X,Y}` and `vertBearingX` but `vertBearingY`
+ is left alone, and is not scaled.
+
+ Patch from Eric Muller <emuller@amazon.com>.
+
+2020-09-24 Werner Lemberg <wl@gnu.org>
+
+ * src/base/ftobjs.c (FT_Load_Glyph): Trace glyph metrics.
+
+2020-09-22 Werner Lemberg <wl@gnu.org>
+
+ [meson] Move auxiliary scripts to `builds/meson`.
+
+ Suggested by Alexei.
+
+ * scripts/*.py: Move meson scripts to...
+ * builds/meson/*.py: ... this new location.
+
+ * meson.build: Updated.
+
+2020-09-21 David Turner <david@freetype.org>
+
+ Add python script for building tarballs.
+
+ * scripts/make_distribution_archives.py: New file.
+
+ This standalone Python script should be equivalent to running `make
+ dist` with the Make-based build system, with the following minor
+ differences:
+
+ - Since `make distclean` doesn't always clean up `objs/` properly,
+ `make dist` archives may contain some stale binaries like
+ `objs/.libs/libfreetype.so.6` or others.
+
+ - `config.guess` and `config.sub` are not updated unless option
+ `--gnu-config-dir=DIR` is used to specify the location of these
+ files.
+
+ - Some bits of the auto-generated reference documentation may
+ appear in slightly different order, probably due to issues related
+ to mkdocs and docwriter.
+
+ As an example, the call
+
+ scripts/make_distribution_archives.py /tmp/freetype2-dist
+
+ creates the following files under `/tmp/freetype2-dist`:
+
+ freetype-<version>.tar.gz
+ freetype-<version>.tar.xz
+ ft<winversion>.zip
+
+2020-09-21 Werner Lemberg <wl@gnu.org>
+
+ * scripts/extract_freetype_version.py: Fix regex typos.
+
+2020-09-21 David Turner <david@freetype.org>
+
+ Add Meson build project file.
+
+ Example usage:
+
+ # Configure Meson build in directory `build-meson` to generate
+ # release binaries comparable to to the ones from the
+ # autotools/make build system.
+ meson setup build-meson \
+ --prefix=/usr/local \
+ --buildtype=debugoptimized \
+ --strip \
+ -Db_ndebug=true
+
+ # After configuring the Meson build with the above command,
+ # compile and install to `/usr/local/`; this includes a pkg-config
+ # file.
+ ninja -C build-meson install
+
+ # Alternatively, compile and install to `/tmp/aa/usr/local/...`
+ # for packaging.
+ DESTDIR=/tmp/aa ninja -C build-meson install
+
+ # Generate documentation under `build-meson/docs`.
+ ninja -C build-meson docs
+
+ Library size comparison for stripped `libfreetype.so` generated by
+ all three build systems:
+
+ - Default build (autotools + libtool): 712 KiB
+ - CMake build (RelWithDebInfo): 712 KiB
+ - Meson build: 712 KiB
+
+
+ * meson.build: New top-level Meson build file for the library.
+
+ * meson_options.txt: New file. It holds user-selectable options for
+ the build, which can be printed with `meson configure`, and selected
+ at `meson setup` or `meson --reconfigure` time with
+ `-D<option>=<value>`.
+
+ * scripts/parse_modules_cfg.py: A script invoked by `meson.build` to
+ parse `modules.cfg` and extract important information out of it
+ (i.e., the list of modules).
+
+ * scripts/process_ftoption_h.py: New script invoked by `meson.build`
+ to process the original `ftoption.h` file. It enables or disables
+ configuration macro variables based on the available dependencies.
+ This is similar to what other build systems are using (i.e., Meson's
+ `configure_file()` command is not used here).
+
+ * scripts/extract_freetype_version.py: New script invoked by
+ `meson.build` to extract the FreeType version number from
+ `<freetype/freetype.h>`.
+
+ * scripts/extract_libtool_version.py: New script invoked by
+ `meson.build` to extract the libtool `revision_info` data from
+ `builds/unix/configure.raw`, and to generate the corresponding
+ shared library suffix.
+
+ * scripts/generate_reference_docs.py: New script invoked by
+ `meson.build` to generate the FreeType 2 reference documentation
+ (using the `docwriter` and `mkdocs` packages, which must be already
+ installed).
+
+2020-09-11 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Improve the second pass (#58373).
+
+ Besides dropout control the second horizontal sweep is supposed to
+ clean up straight horizontal edges that are mishandled by the first
+ vertical sweep when a line passes through pixel centers. This line
+ would present as perfectly aligned span edges in the second sweep.
+
+ * src/raster/ftraster.c (Horizontal_Sweep_Span): Replace the old
+ implementation with a better one focusing on aligned span edges only.
+
+2020-09-08 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Tune SMART macro (#58352).
+
+ Windows seems to perform smart dropout control at 26.6 precision.
+ To mimick Windows independent of increased precision, we need to tweak
+ the macro so that some close calls break down rather than up.
+
+ * src/raster/ftraster.c (SMART): Tweak the macro.
+
+2020-09-08 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [raster] Introduce SMART macro.
+
+ * src/raster/ftraster.c (SMART): New macro for smart dropout rounding.
+ (Verstical_Sweep_Drop, Horizontal_Sweep_Drop): Use it.
+
+2020-09-03 Boris Dalstein <dalboris@gmail.com>
+
+ [build] Make CMake install basic version information.
+
+ * CMakeLists.txt: Do it.
+
+2020-09-02 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [truetype] Reduce Infinality footprint (cont'd).
+
+ * src/truetype/ttinterp.c (Ins_DELTAP): Shrink variable scope.
+ (Ins_SHPIX, Ins_MIRP): Revise if-logic.
+
+2020-09-02 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [truetype] Reduce Infinality footprint.
+
+ * src/truetype/ttinterp.c (Ins_SHPIX, Ins_MSIRP, Ins_MIAP, Ins_MDRP,
+ Ins_MIRP): Shrink variable scopes and consolidate ifdefs.
+
+2020-09-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [truetype] Refactor compensation color.
+
+ * src/truetype/ttinterp.h (TT_Round_Func): Change the last argument.
+ * src/truetype/ttinterp.c (Ins_ROUND, Ins_NROUND, Ins_MDAP, Ins_MIAP,
+ Ins_MDRP, Ins_MIRP): Move compensation retrieval from here...
+ (Round_*): ... to here.
+ * src/truetype/ttobjs.c (tt_size_init_bytecode): Reserve zero
+ compensation at color index 3.
+
+2020-08-28 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Don't set target in direct mode.
+
+ * src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Remove assignment.
+ (ft_smooth_raster_lcd) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Ditto.
+
+2020-08-25 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Limit width.
+
+ Segmentation fault reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24729
+
+2020-08-22 Werner Lemberg <wl@gnu.org>
+
+ * src/truetype/ttgload.c (TT_Get_VMetrics): Add tracing message.
+
+2020-08-05 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [truetype] Retain OVERLAP_SIMPLE and OVERLAP_COMPOUND.
+
+ For glyphs with OVERLAP_SIMPLE or OVERLAP_COMPOUND, set
+ FT_OUTLINE_OVERLAP to render them with direct oversampling, which
+ mitigates artifacts (see 3bb512bc9f62).
+
+ * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Redefine to rhyme
+ with OVERLAP_SIMPLE.
+ * src/base/ftgloadr.c (FT_GlyphLoader_Rewind): Reset outline flags.
+ * src/truetype/ttgload.c
+ (TT_Load_Simple_Glyph): Retain OVERLAP_SIMPLE.
+ (load_truetype_glyph): Retain OVERLAP_COMPOUND.
+
+2020-08-04 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * src/truetype/ttgload.c (TT_Load_Glyph): More tracing.
+
+2020-07-28 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ Hide internal functions with SunPro.
+
+ * include/freetype/internal/compiler-macros.h
+ (FT_INTERNAL_FUNCTION_ATTRIBUTE) <__SUNPRO_C>: Define as __hidden.
+
+2020-07-28 Anuj Verma <anujv@iitbhilai.ac.in>
+
+ Fix static compilation with Visual C.
+
+ * include/freetype/internal/compiler-macros.h
+ (FT_INTERNAL_FUNCTION_ATTRIBUTE) <_WIN32>: Define as empty.
+
+2020-07-28 Priyesh Kumar <priyeshkkumar@gmail.com>
+
+ Fix `-Wformat' compiler warnings.
+
+ * src/*: Fix format specifiers.
+
+ * builds/unix/ftsystem.c (FT_Stream_Open): Ditto.
+
+2020-07-25 Werner Lemberg <wl@gnu.org>
+
+ Fix `-Wformat' compiler warnings.
+
+ Problem reported by Priyesh kumar <priyeshkkumar@gmail.com>
+
+ * src/base/ftoutln.c (FT_Outline_Decompose): Fix number of arguments
+ to tracing macro.
+
+ * src/bdf/bdfdrivr.c (bdf_cmap_char_next, bdf_get_bdf_property):
+ Ditto.
+
+ * src/cache/ftcbasic.c (ftc_basic_family_get_count): Ditto.
+ Reformulate message.
+
+ * src/pcf/pcfdrivr.c (pcf_get_bdf_property): Ditto.
+
+ * src/sfnt/sfwoff2.c (woff2_open_font): Ditto.
+ Trace table offset, too.
+
+ * src/truetype/ttgxvar.c (ft_var_apply_tuple): Ditto.
+
+2020-07-23 Werner Lemberg <wl@gnu.org>
+
+ * src/sfnt/sfwoff2.c (woff2_decompress): Fix compiler warning.
+
+ Reported by Hin-Tak.
+
+2020-07-12 Werner Lemberg <wl@gnu.org>
+
+ * builds/unix/configure.raw: Fix inclusion of `ftoption.h'.
+
+2020-07-07 Werner Lemberg <wl@gnu.org>
+
+ Fix clang warnings.
+
+ * include/freetype/internal/autohint.h
+ (FT_DECLARE_AUTOHINTER_INTERFACE): New macro.
+ * src/autofit/afmodule.h: Use it to declare
+ `af_autofitter_interface'.
+
+ * include/freetype/internal/ftobjs.h (FT_DECLARE_GLYPH): New macro.
+ * src/base/ftbase.h: Use it to declare `ft_bitmap_glyph_class' and
+ `ft_outline_glyph_class'.
+
+ * src/base/ftglyph.c: Include `ftbase.h'.
+
+ * src/cff/cffparse.c (cff_parser_run): Fix type of `t2_size'.
+
+ * src/pcf/pcfdrivr.c (pcf_cmap_char_next): Fix type of `result'.
+
+ * src/psaux/psauxmod.c (psaux_module_class): Use `FT_DEFINE_MODULE'.
+ * src/psaux/psauxmod.h: Declare `afm_parser_funcs',
+ `t1_cmap_classes', `cff_decoder_funcs', and `psaux_module_class'.
+
+ * src/pshinter/pshmod.c: Include `pshmod.h'.
+
+ * src/sfnt/sfwoff2.c (ROUND4, WRITE_SHORT): Fix implicit sign
+ conversion.
+ (compute_ULong_sum): Fix return type.
+ Fix implicit sign conversion.
+ (store_points): Fix type of `last_flag', `repeat_count', and `flag'.
+ Use casts to avoid warnings.
+ (reconstruct_glyf): Fix implicit sign conversion.
+ Use cast to avoid warning.
+ (get_x_mins): Fix implicit sign conversion.
+ * src/sfnt/ttcmap.c: Undef `TTCMAPCITEM'.
+ * src/sfnt/ttcmap.h: Define `TTCMAPCITEM' and include `ttcmapc.h' to
+ declare cmap classes.
+
+ * src/smooth/ftsmooth.c (ft_smooth_overlap_spans): Use cast.
+
+ * src/truetype/ttinterp.c (Ins_MIAP): Fix typo.
+
+2020-07-07 David Turner <david@freetype.org>
+
+ [build] Really fix multi and C++ builds.
+
+ The following builds were still failing due to previous changes:
+
+ make multi
+ make multi CC="c++"
+ make CC="c++"
+
+ This patch fixes the issues, which were missing includes to get the
+ right macro definitions in multi-build mode.
+
+ Also, `FT_UNUSED' is actually used by third-party code, so move it
+ back to `public-macros.h' to avoid breaking it.
+
+ * include/freetype/config/public-macros.h (FT_EXPORT): Remove
+ special definition for C++.
+ (FT_UNUSED): Define here instead of...
+ * include/freetype/config/compiler-macros.h: ... here.
+ (FT_FUNCTION_DECLARATION): Remove special definition for C++.
+ (FT_LOCAL_ARRAY_DEF): Fix definition.
+
+ * src/cache/ftccback.h, src/lzw/ftzopen.h, src/gxvalid/gxvmort.h,
+ src/gxvalid/gxvmorx.h: Add `FT_BEGIN_HEADER' and `FT_END_HEADER'.
+
+2020-07-06 David Turner <david@freetype.org>
+
+ [build] Fix multi and C++ builds.
+
+ The following builds were failing due to previous changes:
+
+ make multi
+ make multi CC="c++"
+
+ * include/freetype/config/ftconfig.h: Remove `FT_END_HEADER'.
+
+ * include/freetype/config/ftheader.h (FT_BEGIN_HEADER,
+ FT_END_HEADER): Protect against redefinition.
+
+ * src/cache/ftccache.h, src/cache/ftcmru.h, src/pcf/pcfutil.h,
+ src/psaux/pserror.h, src/psaux/psft.h, src/psaux/psstack.h,
+ src/sfnt/woff2tags.h: Include `compiler-macros.h'.
+
+ * src/sfnt/woff2tags.c: Include `woff2tags.h'.
+
+2020-07-06 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Improve `t1_decoder_parse_metrics' (#58646).
+
+ * src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy
+ corresponding code from old engine's `t1_decoder_parse_charstrings'
+ function to handle `op_callsubr' and `op_return'.
+
+2020-07-05 David Turner <david@freetype.org>
+
+ [build] Improve visibility support of library function names.
+
+ * include/freetype/config/public-macros.h
+ (FT_PUBLIC_FUNCTION_ATTRIBUTE): New macro to tag functions as
+ public (and thus exportable).
+ (FT_EXPORT): Use it.
+
+ * include/freetype/config/compiler-macros.h
+ (FT_INTERNAL_FUNCTION_ATTRIBUTE): New macro to tag functions as
+ internal to the library (and thus hidden). Note that on ELF
+ systems, all internal functions have hidden visibility, which avoids
+ the need to enforce this when invoking the compiler (e.g., with an
+ option like `-fvisibility=hidden').
+
+ (FT_FUNCTION_DECLARATION, FT_FUNCTION_DEFINITION): New base macros
+ to deal with C and C++ linkage issues at the same time.
+
+ (FT_LOCAL, FT_LOCAL_DEF, FT_LOCAL_ARRAY, FT_LOCAL_ARRAY_DEF,
+ FT_BASE, FT_BASE_DEF, FT_EXPORT_VAR, FT_BASE_CALLBACK,
+ FT_BASE_CALLBACK_DEF): Redefined using new macros.
+
+2020-07-05 David Turner <david@freetype.org>
+
+ [build] Split off more stuff from `ftconfig.h'.
+
+ * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
+ include/freetype/config/ftconfig.h: Split off macro definitions
+ required by the FreeType API headers to...
+ * include/freetype/config/public-macros.h: ...this new file.
+
+ * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
+ include/freetype/config/ftconfig.h: Split off macro definitions used
+ by the library but not to be exposed to clients to...
+ * include/freetype/config/compiler-macros.h: ...this new file.
+
+ * include/freetype/internal/*.h, src/raster/ftraster.h: Include
+ `compiler-macros.h' where needed.
+
+2020-07-05 David Turner <david@freetype.org>
+
+ [build] Move mac support code to `mac-support.h'.
+
+ * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
+ include/freetype/config/ftconfig.h: Split off mac-specific stuff
+ to...
+ * include/freetype/config/mac-support.h: ...this new file.
+
+ * CMakeLists.txt, builds/unix/configure.raw: Remove `/undef ->
+ #undef' string replacement; the affected code is no longer part of
+ the `ftconfig.h' template.
+
+2020-07-05 David Turner <david@freetype.org>
+
+ [build] Put integer type definitions into `integer-types.h'.
+
+ Refactor some of the `ftconfig.h' headers and template to move the
+ definition of the FreeType integer types (e.g., `FT_Int16') to a
+ common header file `freetype/config/integer-types.h'.
+
+ * builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,
+ include/freetype/config/ftconfig.h: Split off integer type
+ definition stuff to...
+ * include/freetype/config/integer-types.h: ...this new file.
+
+ * builds/unix/ftconfig.h.in: Control the definition of
+ `FT_SIZEOF_INT' and `FT_SIZEOF_LONG' with macro
+ `FT_USE_AUTOCONF_SIZEOF_TYPES'. If these are not defined, auto
+ detection happens in `integer-types.h' as usual based on `INTXX_MAX'
+ values. Otherwise the autoconf-detected values are used.
+
+ * builds/unix/configure.raw (CPPFLAGS): Don't include path to
+ `config' directory. Instead, ...
+ (FT_CONFIG_STANDARD_LIBRARY_H): Use complete path.
+
+2020-07-05 David Turner <david@freetype.org>
+
+ [build] Rename `build/unix/ftconfig.in' to `ftconfig.h.in'.
+
+ Since we are no longer limited to 8.3 file names, it is simpler to
+ follow the usual conventions for template files.
+
+ * builds/unix/ftconfig.in: Renamed to...
+ * builds/unix/ftconfig.h.in: ...this.
+
+ * CMakeLists.txt, builds/unix/configure.raw: Updated.
+
+2020-07-03 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Introduce direct oversampling for overlaps.
+
+ This implements oversampling to mitigate artifacts in pixels partially
+ covered by overlapping contours. It turns out that the 4x4
+ oversampling is sufficient but, at least, quadruples the rendering
+ time. The outline has to set FT_OUTLINE_OVERLAP to use this method.
+
+ * include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): New flag.
+ * src/smooth/ftsmooth.c (ft_smooth_render): Check it to...
+ (ft_smooth_raster_overlap): ... inflate outline and set up direct
+ rendering for oversampling with...
+ (ft_smooth_overlap_spans): ... new span function that integrates them.
+
+2020-07-03 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Use direct rendering mode in Harmony.
+
+ Instead of rendering 3 bitmaps side by side and reshuffling, we use
+ direct rendering to deliver the bitmaps on each third byte.
+
+ * src/smooth/ftsmooth.c (ft_smooth_raster_lcd)
+ [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Set up direct mode with...
+ (ft_smooth_lcd_spans): ... new span function.
+
+2020-07-03 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Separate LCD paths from gray rendering.
+
+ This makes `ft_smooth_render' a lot smaller and easier to follow. It
+ also cleanly separates Harmony and ClearType-style LCD rendering
+ algorithms. Now I only wish to move LCD filtering and geometry from
+ FT_Library to FT_Renderer.
+
+ * src/smooth/ftsmooth.c (ft_smooth_render): Move LCD code from here...
+ (ft_smooth_raster_lcd, ft_smooth_raster_lcdv): ... to here.
+ [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Reorganize #ifdef's.
+
+2020-06-20 Sebastian Rasmussen <sebras@gmail.com>
+
+ [cff] Fix handling of `style_name == NULL' (#58630).
+
+ * src/cff/cffobjs.c (cff_face_init): If a call to `cff_strcpy' fails
+ by returning NULL in `cff_face_init', `remove_style' is still
+ called. This means that the NULL pointer is dereferenced, causing a
+ crash.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [cff] Fix another two memory leaks (#58629).
+
+ * src/cff/cffobjs.c (cff_size_init): If a call to `funcs->create'
+ fails to allocate one of the `internal->subfont' variables, make
+ sure to free `internal->topfont' and any successfully allocated
+ subfonts.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [psaux] Fix memory leak (#58626).
+
+ * src/psaux/psstack.c (cf2_stack_init): If `cf2_stack_init' fails to
+ allocate the stack, return error early.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [base] Fix memory leak (#58624).
+
+ * src/base/ftobjs.c (FT_New_Size): Avoid trying to free
+ `size->internal' unless `size' has been allocated. This mistake
+ appeared in the fix for issue #58611.
+
+2020-06-19 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [base] Rework d1180b5f9598 until further notice.
+
+ * src/base/ftoutln.c (FT_Outline_Get_Orientation): Reject large
+ outlines.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [cff, cid] Fix segfaults in case of error (#58621).
+
+ * src/cff/cffobjs.c (cff_slot_done), src/cid/cidobjs.c
+ (cid_slot_done): If `ft_glyphslot_init' fails to allocate
+ `internal', then the class' `done_slot' callback (called by
+ `ft_glyphslot_done') must not dereference the pointer to `internal'.
+
+2020-06-19 Werner Lemberg <wl@gnu.org>
+
+ [base] Fix UBSAN error.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23166
+
+ * src/base/ftoutln.c (FT_Outline_Get_Orientation): Avoid values
+ larger than 32 bits.
+
+2020-06-19 Werner Lemberg <wl@gnu.org>
+
+ [woff2] Fix segfault.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23402
+
+ * src/sfnt/sfwoff2.c (get_x_mins): Check whether `loca' table
+ exists.
+
+2020-06-19 Stephen McDowell <svenevs.dev@gmail.com>
+
+ [sfnt] Support Intel compilers.
+
+ * src/sfnt/pngshim.c (premultiply_data): Intel compilers do not
+ currently support `__builtin_shuffle'.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [base] Fix memory leak (#58611).
+
+ * src/base/ftobjs.c (FT_New_Size): When the call to `clazz->init_size'
+ fails, make sure to free `size->internal'.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [cff] Fix memory leak (#58610).
+
+ * src/cff/cffobjs.c (cff_size_init): When the call to
+ `funcs->create' fails, make sure to free `internal'.
+
+2020-06-19 Werner Lemberg <wl@gnu.org>
+
+ * src/cff/cffload.c (cff_index_get_pointers): Rename `t' to `tbl'.
+
+2020-06-19 Sebastian Rasmussen <sebras@gmail.com>
+
+ [cff] Free table upon error allocating other data (#58609).
+
+ * src/cff/cffload.c (cff_index_get_pointers): When new_bytes fails
+ to allocate, make sure to free the table. Do the same for both
+ allocations if there is a later error.
+
+2020-06-13 Werner Lemberg <wl@gnu.org>
+
+ Remove redundant inclusion of `ft2build.h'.
+
+ * */*: Remove `#include <ft2build.h>' where possible.
+
+ * include/freetype/freetype.h: Remove cpp error about missing
+ inclusion of `ft2build.h'.
+
+2020-06-08 David Turner <david@freetype.org>
+
+ Make macros for header file names optional.
+
+ We no longer have to take care of the 8.3 file name limit; this
+ allows us (a) to introduce longer, meaningful file names, and (b) to
+ avoid macro names in `#include' lines altogether since some
+ compilers (most notably Visual C++) doesn't support this properly.
+
+ */*: Replace
+
+ #include FOO_H
+
+ with
+
+ #include <freetype/foo.h>
+
+ or something similar. Also update the documentation.
+
+2020-06-02 Werner Lemberg <wl@gnu.org>
+
+ * src/sfnt/ttcmap.c (tt_face_build_cmaps): Trace number of cmaps.
+
+2020-05-18 David Turner <david@freetype.org>
+
+ Remove obsolete HAVE_STDINT_H probing macro.
+
+ This macro was updated by the unix configure script and the
+ `CMakeLists.txt' one, but is never used in the source tree (nor is
+ <stdint.h> included anywhere).
+
+ * CMakeLists.txt, builds/unix/ftconfig.in: Don't handle
+ `HAVE_STDINT_H'.
+
+2020-05-18 David Turner <david@freetype.org>
+
+ Remove Jamfile files from the tree.
+
+ These have not been used in a very, very long time, so better remove
+ them. A corresponding patch will be submitted to the
+ `freetype2-demos' repository.
+
+ * src/Jamfile, src/*/Jamfile, Jamrules: Delete.
+
+2020-05-12 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Turn on LCD filtering during FreeType initialization.
+
+ * src/smooth/ftsmooth.c (ft_smooth_init): Enable LCD filtering.
+
+ * include/freetype/ftlcdfil.h: Document it, remove patent warnings.
+ * include/freetype/freetype.h (FT_Render_Mode): Updated.
+ * include/freetype/config/ftoption.h, devel/ftoption.h
+ [FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Do not mention patents.
+
+2020-05-11 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [smooth] Stop using dedicated LCD modules and classes.
+
+ The LCD modules were never truly independent. They mostly served as
+ a way to disable patented LCD rendering, which is no longer necessary.
+ The `smooth' module now handles LCD modes as well.
+
+ * src/smooth/ftsmooth.c (ft_smooth_lcd_renderer_class.
+ ft_smooth_lcdv_renderer_class): Deleted.
+ (ft_render_smooth): Reworked from `ft_render_smooth_generic'.
+ * src/smooth/ftsmooth.h: Remove dedicated LCD classes.
+ * src/smooth/module.mk: Remove dedicated LCD modules.
+ * include/freetype/config/ftmodule.h: Ditto.
+ * builds/amiga/include/config/ftmodule.h: Ditto.
+ * include/freetype/ftmodapi.h: Do not mention LCD modules.
+
+2020-05-09 Werner Lemberg <wl@gnu.org>
+
+ * Version 2.10.2 released.
+ ==========================
+
+
+ Tag sources with `VER-2-10-2'.
+
+ * docs/VERSION.TXT: Add entry for version 2.10.2.
+
+ * README, Jamfile (RefDoc), src/base/ftver.rc,
+ builds/windows/vc2010/index.html, builds/windows/visualc/index.html,
+ builds/windows/visualce/index.html,
+ builds/wince/vc2005-ce/index.html,
+ builds/wince/vc2008-ce/index.html, docs/freetype-config.1:
+ s/2.10.1/2.10.2/, s/2101/2102/.
+
+ * include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
+
+ * builds/unix/configure.raw (version_info): Set to 23:2:17.
+ * CMakeLists.txt (VERSION_PATCH): Set to 2.
+
+ * docs/CHANGES: Updated.
+
+2020-05-08 Jakub Alba <jalba@vewd.com>
+
+ * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#58319).
+
+ The font that exceeds the old limit is Icono Regular, version
+ 1.00000.
+
+2020-05-03 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * builds/freetype.mk: Refactor for readability.
+
+2020-05-02 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [builds] Clean up Windows CE project files.
+
+ Remove version from filenames that caused a lot of polution in the
+ release process. Use VERSIONINFO resource instead.
+
+ * builds/wince/vc2005-ce/freetype.vcproj,
+ builds/wince/vc2008-ce/freetype.vcproj,
+ builds/windows/visualce/freetype.vcproj,
+ builds/windows/visualce/freetype.dsp: s/2101//g, but add `ftver.rc'.
+ * builds/wince/vc2008-ce/index.html,
+ builds/wince/vc2005-ce/index.html,
+ builds/windows/visualce/index.html: s/2101//g.
+
+2020-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * devel/ft2build.h: Override FT_CONFIG_MODULES_H here as well.
+
+2020-05-01 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [builds/unix] Consolidate marco overrides (for the demos to see them).
+
+ * builds/unix/unix-cc.in (FT_CONFIG_MODULES_H, FT_CONFIG_OPTIONS_H):
+ Override them here...
+ * builds/freetype.mk: ... instead of here.
+
+2020-04-08 Werner Lemberg <wl@gnu.org>
+
+ Allow setting `CC' in Unix build (#58051).
+
+ * builds/unix/unix-cc.in (CC): Use `override'. The command line
+ value of `CC' (if any) is stored already in `CCraw'.
+
+2020-04-04 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
+
+ [woff2] Return if single stream operation fails.
+
+ * src/sfnt/sfwoff2.c (get_x_mins): Do it.
+
+ * src/sfnt/woff2tags.c: Remove unused include.
+
+2020-03-22 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
+
+ [docs] Fix building docs if `srcdir' != `builddir'.
+
+ `docs/reference/*' was moved one directory up in commit 237fed6.
+
+ * builds/unix/unix-def.in (PIP): Remove variable.
+
+ * configure: Create `docs' directory and copy assets from
+ `docs/markdown'.
+
+ * docs/README: Output directory is `reference'.
+
+2020-03-21 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
+
+ [docwriter] Drop support for Python < 3.5.
+
+ Python versions < 3.5 have reached end-of-life and as such, no
+ security or bug fixes will be provided for those versions. See
+
+ https://devguide.python.org/#status-of-python-branches
+
+ for more information.
+
+ * Jamfile (RefDoc): Add `site' parameter.
+
+ * builds/detect.mk (std_setup): Update Python version requirement.
+
+ * builds/freetype.mk (refdoc-venv): Use pip as `python -m pip'.
+
+ * builds/unix/ax_compare_version.m4,
+ builds/unix/ax_prog_python_version.m4: Macros to detect Python
+ version. New files.
+
+ * builds/unix/configure.raw: Check for Python >= 3.5 and remove
+ check for `pip'.
+
+ * docs/CHANGES, docs/INSTALL.GNU, docs/README: Updated.
+
+2020-03-02 Moazin Khatti <moazinkhatri@gmail.com>
+
+ [gzip] Support `gzip' encoded header conditionally.
+
+ In order to support `gzip' encoded header the call to
+ `inflateInit2' was modified in commit 6a92b1fadde26477a9179.
+ However, this code breaks with the outdated internal version
+ of zlib. This is a temporary fix to conditionally support
+ `gzip' encoded header whenever a system installation of zlib
+ is being used.
+
+ Problem report in
+
+ https://lists.nongnu.org/archive/html/freetype-devel/2020-02/msg00023.html
+
+ * src/gzip/ftgzip.c (FT_Gzip_Uncompress): Change the the call to
+ `inflateInit2' depending on whether the system installation is
+ being used or the internal copy.
+
+2020-02-29 Ben Wagner <bungeman@google.com>
+
+ [truetype] Fix state of `FT_Face' for buggy `gvar' tables (#57923).
+
+ By resetting the blend as implemented with this commit fonts with
+ invalid `gvar' tables may keep calling into `ft_var_load_gvar' from
+ `tt_set_mm_blend' and failing, but the font was invalid anyway and
+ we want to keep seeing the failure in `tt_set_mm_blend'.
+
+ * src/truetype/ttgxvar.c (ft_var_load_gvar): Calculate length of
+ offset array once.
+ Allocate arrays after `FT_FRAME_ENTER' (extra check before
+ allocating and avoid needing to free array later if error entering
+ frame).
+ Always call `FT_FRAME_EXIT'.
+ Consistently set counts immediately after array initialized.
+ Reset the blend (particularly `blend->glyphoffsets') on failure.
+
+2020-03-01 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
+
+ [docs] Update docwriter stylesheet.
+
+ This change is required to support docwriter 1.2.1.
+
+ See
+
+ https://github.com/freetype/docwriter/issues/36
+
+ for more information.
+
+ * docs/markdown/stylesheets/extra.css:
+ (.md-typeset code) -> (.md-typeset pre>code)
+ (pre) -> (pre>code)
+ (p, .md-typeset p, h4): Remove commented styles.
+ (table.index): Remove unused styles.
+
+2020-02-28 Ben Wagner <bungeman@google.com>
+
+ [truetype] Add better checks for loading `gvar' table (#57905).
+
+ * src/truetype/ttgxvar.c (ft_var_load_gvar): Delay settings of any
+ `blend->xxxcount' values until the corresponding data has been
+ checked.
+ Also do some sanitizing to avoid a too early exit.
+
+ (TT_Vary_Apply_Glyph_Deltas): Improve tracing message.
+
+2020-02-27 Werner Lemberg <wl@gnu.org>
+
+ Make `FT_HAS_*' and `FT_IS_*' really return true (#57906).
+
+ * include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Implement it.
+
+2020-02-25 Dominik Röttsches <drott@chromium.org>
+
+ Fix for CFF space glyph regression (#57541).
+
+ * src/psaux/psft.c (cf2_decoder_parse_substrings): Replace early-out
+ with FT_OFFSET.
+
+2020-02-22 Werner Lemberg <wl@gnu.org>
+
+ [woff2] Fix font table access.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20778
+
+ * src/sfnt/sfwoff2.c (get_x_mins): Explicitly check for presence of
+ `head' table, which might not have been processed yet.
+
+2020-02-21 Werner Lemberg <wl@gnu.org>
+
+ [psaux] Make `t1_decoder_parse_metrics' handle `op_div' (#57519).
+
+ * src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy
+ corresponding code from old engine's `t1_decoder_parse_charstrings'
+ function.
+
+2020-02-19 Nikolaus Waxweiler <nikolaus.waxweiler@daltonmaag.com>
+
+ [autofit] Add support for Hanifi Rohingya script.
+
+ * src/autofit/afblue.dat: Add blue zone data for Hanifi Rohingya.
+ * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
+
+ * src/autofit/afscript.h: Add Hanifi Rohingya standard character.
+
+ * src/autofit/afranges.c, src/autofit/afstyles.h: Add Hanifi
+ Rohingya data.
+
+2020-02-19 Werner Lemberg <wl@gnu.org>
+
+ Require HarfBuzz 1.8.
+
+ * builds/unix/configure.raw, CMakeLists.txt: Request HarfBuzz 1.8.0
+ or newer.
+
+ We are going to add auto-hinter support for Hanifi Rohingya, which
+ was introduced in Unicode 11.0.
+
+2020-02-12 Werner Lemberg <wl@gnu.org>
+
+ * src/sfnt/ttcmap.c (tt_face_build_cmaps): Ignore version (#57708).
+
+2020-02-04 Werner Lemberg <wl@gnu.org>
+
+ * src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#57732).
+
+ The font that exceeds the old limit is Constantine, version 1.001.
+
+2020-01-04 Werner Lemberg <wl@gnu.org>
+
+ [base] Fix `FREETYPE_PROPERTIES=type1:hinting-engine=adobe`.
+
+ * src/base/ftpsprop.c (ps_property_set) [hinting-engine]: Avoid an
+ incorrect return value that caused a warning. The function did the
+ right thing, though.
+
+2020-01-03 Werner Lemberg <wl@gnu.org>
+
+ [woff2] Fix memory leaks and a runtime warning.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19773
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18101
+
+ * src/sfnt/sfwoff2.c (compute_ULong_sum): Add missing cast.
+ (reconstruct_hmtx): Add missing deallocation calls.
+
+2020-01-02 Dominik Röttsches <drott@chromium.org>
+
+ [truetype] Fix UBSan warning on offset to nullptr (#57501).
+
+ * src/truetype/ttinterp.c (Ins_CALL): Fail if `exc->FDefs' is null.
+
+2019-12-31 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
+
+ [woff2] Allow bitmap-only fonts (#57394).
+
+ * src/sfnt/sfwoff2.c (reconstruct_font): Fix test for `glyf' and
+ `loca' tables.
+
+2019-12-21 Hugh McMaster <hugh.mcmaster@outlook.com>
+
+ [docs] (2/2) Fix generation of API documentation (#56745).
+
+ Creating the API Reference in the (new) `reference' sub-directory is
+ consistent with other documentation sub-topics, such as `design',
+ `glyphs' and `tutorial'.
+
+ This patch fixes broken hyperlinks in the documentation pointing to
+ and from the API Reference. It also allows web assets to load from
+ their relative paths.
+
+ * builds/freetype.mk (DOC_DIR): Adjust.
+ (refdoc, refdoc-venv): Add `--site' argument.
+
+ * builds/toplevel.mk (do-dist): Updated.
+
+2019-12-21 Hugh McMaster <hugh.mcmaster@outlook.com>
+
+ [docs] (1/2) Move static web assets (#56745).
+
+ * docs/reference/*: Move ...
+ * docs: ... one directory up.
+
+2019-12-21 Dominik Röttsches <drott@chromium.org>
+
+ Fix more UBSan warnings on adding offset to nullptr (#57432).
+
+ * src/truetype/ttinterp.c (Ins_LOOPCALL), src/psaux/psft.c
+ (cf2_initLocalRegionBuffer): Use `FT_OFFSET'.
+
+2019-12-16 Werner Lemberg <wl@gnu.org>
+
+ [truetype] Fix UBSan warnings on adding offsets to nullptr.
+
+ Reported as
+
+ https://bugs.chromium.org/p/chromium/issues/detail?id=1032152
+
+ * src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Use `FT_OFFSET'.
+
+2019-12-14 Werner Lemberg <wl@gnu.org>
+
+ [truetype] Fix integer overflow.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19305
+
+ * src/truetype/ttinterp.c (Ins_MIRP): Use `ADD_LONG'.
+
+2019-12-13 Werner Lemberg <wl@gnu.org>
+
+ Another bunch of UBSan warnings on adding offsets to nullptr.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19427
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19433
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19441
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19451
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19452
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19457
+
+ * src/autofit/aflatin.c (af_latin_hints_compute_segments,
+ af_latin_hints_compute_edges): Use `FT_OFFSET'.
+
+ * src/base/ftstream.c (FT_Stream_EnterFrame): Use `FT_OFFSET'.
+
+ * src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Exit early
+ if there is no charstring.
+
+ * src/psaux/psobjs.c (t1_decrypt): Use `FT_OFFSET'.
+
+ * src/smooth/ftsmooth.c (ft_smooth_render_generic): Exit early for
+ zero bitmap dimensions.
+
+2019-12-09 Dominik Röttsches <drott@chromium.org>
+
+ Fix more UBSan warnings on adding offset to nullptr (#57384).
+
+ * src/smooth/ftsmooth.c (ft_smooth_render_generic),
+ src/psaux/psobjs.c (ps_table_add): Use `FT_OFFSET'.
+
+2019-12-05 Werner Lemberg <wl@gnu.org>
+
+ * src/truetype/ttinterp.c (TT_RunIns): Use `FT_OFFSET'.
+
+ Reported as
+
+ https://bugs.chromium.org/p/chromium/issues/detail?id=1030614
+
+2019-12-03 Werner Lemberg <wl@gnu.org>
+
+ More nullptr offset UBSan warnings (#57331, #57347).
+
+ * src/autofit/afcjk.c (af_cjk_hints_compute_segments),
+ src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c
+ (Ins_UNKNOWN): Use `FT_OFFSET'.
+
+2019-11-29 Dominik Röttsches <drott@chromium.org>
+
+ Avoid more nullptr offset UBSan warnings (#57316).
+
+ * src/base/ftoutln.c (FT_Outline_Transform): Bail on empty points.
+ * src/cff/cffload.c (cff_subfont_load): Use `FT_OFFSET'.
+ * src/psaux/psft.c (cf2_decoder_parse_substrings): Early out if
+ `charstring_base' or `charstring_len' are null.
+ * src/sfnt/ttload.c (tt_face_load_name): Use `FT_OFFSET'.
+
+2019-11-23 John Stracke <jstracke@Google.com>
+
+ [base] Really fix #57194.
+
+ Apply accidentally missed second part of patch.
+
+ * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Call
+ `FT_GlyphLoader_CreateExtra'.
+
+2019-11-23 Werner Lemberg <wl@gnu.org>
+
+ [truetype] Avoid sanitizer warning (#57289).
+
+ * src/truetype/ttpload.c (tt_face_get_device_metrics): Use
+ `FT_OFFSET'.
+
+2019-11-23 Armin Hasitzka <prince.cherusker@gmail.com>
+
+ [truetype] Fix integer overflow (#57287).
+
+ * src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.
+
+2019-11-23 Ben Wagner <bungeman@google.com>
+
+ [sfnt] Avoid sanitizer warning (#57286).
+
+ * src/sfnt/ttcmap.c (tt_face_build_cmaps): Avoid possible `NULL +
+ offset' computation.
+ Tag `table' as `const'.
+
+2019-11-23 John Stracke <jstracke@Google.com>
+ Werner Lemberg <wl@gnu.org>
+
+ [base] Fix `NULL + offset' sanitizer warnings (#57194).
+
+ * src/base/ftgloadr.c (FT_GlyphLoader_Adjust_Points,
+ FT_GlyphLoader_Adjust_Subglyphs): Use `FT_OFFSET'.
+ (FT_GlyphLoader_CreateExtra): Add short cut if some values are zero.
+
+2019-11-23 Werner Lemberg <wl@gnu.org>
+
+ * include/freetype/internal/ftmemory.h (FT_OFFSET): New macro.
+
+ Use this for `base + offset' pointer calculations where `base' can
+ be NULL (triggering a sanitizer warning even if the resulting
+ pointer gets never dereferenced since it is undefined behaviour
+ in C).
+
+ Suggested by Ben Wagner.
+
+2019-11-23 Ben Wagner <bungeman@google.com>
+
+ [sfnt] Ensure OTTO fonts have tables (#57285).
+
+ * src/sfnt/ttload.c (tt_face_load_font_dir): Add test.
+
+2019-11-23 Behdad Esfahbod <behdad@behdad.org>
+
+ Minor fixes for recent compilers.
+
+ * src/gzip/infutil.h (inflate_mask): Add `const'.
+
+ * src/autofit/aflatin2.c: Include `ft2build.h'.
+
+2019-11-07 Nikolaus Waxweiler <madigens@gmail.com>
+
+ * CMakeLists.txt: Minor additions to the notes, compile
+ builds/unix/ftsystem.c instead of src/base/ftsystem.c on UNIX.
+
+ The latter change is based on the code proposed by rim in #55235.
+
+2019-10-25 Werner Lemberg <wl@gnu.org>
+
+ * src/sfnt/sfwoff2.c (woff2_open_font): Check `num_fonts' for TTCs.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18494
+
+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 colored 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) 2018-2021 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: