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diff --git a/Build/source/libs/freetype2/freetype-src/ChangeLog b/Build/source/libs/freetype2/freetype-src/ChangeLog
index 42f7c34ba8c..e649d31e2a1 100644
--- a/Build/source/libs/freetype2/freetype-src/ChangeLog
+++ b/Build/source/libs/freetype2/freetype-src/ChangeLog
@@ -1,3 +1,2752 @@
+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.
@@ -875,7 +3624,7 @@
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.
@@ -5050,7 +7799,7 @@
----------------------------------------------------------------------------
-Copyright (C) 2018-2020 by
+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,