2022-03-31  Werner Lemberg  <wl@gnu.org>

	* Version 2.12.0 released.
	==========================

	Tag sources with `VER-2-12-0'.

	* docs/VERSION.TXT: Add entry for version 2.12.0.
	* docs/CHANGES, docs/release: 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/2.11.1/2.12.0/, s/2111/2120/.

	* include/freetype/freetype.h (FREETYPE_MINOR): Set to 12.
	(FREETYPE_PATCH): Set to 0.

	* builds/unix/configure.raw (version_info): Set to 24:2:18.
	* CMakeLists.txt (VERSION_MINOR): Set to 12.
	(VERSION_PATCH): Set to 0.

	* builds/toplevel.mk (do-dist): Generate `ChangeLog` entries for all commits
	since version 2.11.0 (when we stopped creating this file manually).

2022-03-31  Werner Lemberg  <wl@gnu.org>

	Fix clang++ warnings.

	* src/base/ftglyph.c (ft_svg_glyph_prepare), src/base/ftobj.c
	(ft_glyphslot_init), src/cache/ftccmap.c (ftc_cmap_node_new),
	src/cache/ftcimage.c (FTC_INode_New), src/lzw/ftlzw.c (FT_Stream_OpenLZW),
	src/psaux/psobjs.c (ps_parser_load_field), src/pshinter/pshglob.c
	(psh_globals_new), src/sfnt/ttsvg.c (tt_face_load_svg_doc): Initialize
	variables used for allocation.

	* src/sdf/ftsdf.c (split_sdf_conic, split_sdf_cubic): Change type of
	`max_splits` to FT_UInt.
	(sdf_generate_bounding_box): Add cast.

2022-03-30  Werner Lemberg  <wl@gnu.org>

	Whitespace.

2022-03-30  Werner Lemberg  <wl@gnu.org>

	[builds] Fix creation of `freetype2.pc` for static-only builds.

	We have to help `pkg-config` since it can't recognize that there is no
	shared library installed.

	Note that meson already does exactly the same.

	* builds/unix/configure.raw (REQUIRES_PRIVATE, LIBS_PRIVATE): Rename to...
	(PKGCONFIG_REQUIRES_PRIVATE, PKGCONFIG_LIBS_PRIVATE): This.  Adjust them
	depending on `$enable_shared`.
	(PKGCONFIG_REQUIRES, PKGCONFIG_LIBS): New variables.

	* builds/unix/freetype2.in, builds/unix/unix-def.in: Use new and updated
	variables.

2022-03-25  Werner Lemberg  <wl@gnu.org>

	Add `FT_FACE_FLAG_SBIX_OVERLAY` and `FT_HAS_SBIX_OVERLAY`.

	* include/freetype/freetype.h (FT_FACE_FLAG_SBIX_OVERLAY,
	FT_HAS_SBIX_OVERLAY): New macro.

	* src/sfnt/ttsbit.c (tt_face_load_sbit): Handle `FT_FACE_FLAG_SBIX_OVERLAY`.
	Remove obsolete tracing message.

2022-03-25  Werner Lemberg  <wl@gnu.org>

	Add `FT_PARAM_TAG_IGNORE_SBIX`.

	This is another bit to handle 'sbix' tables as described in the OpenType
	specification.

	* include/freetype/ftparams.h (FT_PARAM_TAG_IGNORE_SBIX): New macro.

	* src/sfnt/sfobjc.c (is_apple_sbix): Rename to...
	(has_sbix): ... this.
	Check for more sbit tables.
	Handle `FT_PARAM_TAG_IGNORE_SBIX` to eventually control `has_sbix`.
	Only call sbit table loader if an sbit table is present.

2022-03-25  Werner Lemberg  <wl@gnu.org>

	[truetype] Fix 'sbix' table handling.

	* src/sfnt/ttsbit.c (tt_face_load_sbix_image): Correct calculation of
	'metrics->horiBearingY'.
	Set vertical metrics.

	* src/sfnt/sfobjs.c (sfnt_load_face): Adjust setting of `FT_FACE_FLAG_SBIX`.
	Handle metrics of fonts with 'sbix' table.

	* src/truetype/ttgload.c (TT_Load_Glyph): For 'sbix' embedded bitmaps, apply
	bbox offset and bearing values of the corresponding glyph in the 'glyf'
	table if it exists and has a contour.

	* src/truetype/ttobjs.c (tt_face_init): Handle font with 'sbix' table.

	Fixes issue #998.

2022-03-25  Werner Lemberg  <wl@gnu.org>

	Add `FT_FACE_FLAG_SBIX` and `FT_HAS_SBIX`.

	Fonts with 'sbix' tables need special handling by the application.

	* include/freetype/freetype.h (FT_FACE_FLAG_SBIX, FT_HAS_SBIX): New macros.

	* src/sfnt/sfobjs.c (sfnt_load_face): Set `FT_FACE_FLAG_SBIX` if 'sbix'
	table is present.

2022-03-25  Werner Lemberg  <wl@gnu.org>

	* include/freetype/freetype.h (FT_LOAD_SBITS_ONLY): Tag macro as public.

2022-03-24  Carlo Bramini  <carlo.bramix@libero.it>

	[builds/windows] Fix WCE support.

	* builds/windows/ftsystem.c [_WIN32_WCE]: Include <malloc.h> needed by
	_alloca.

2022-03-24  Steve Lhomme  <robux4@ycbcr.xyz>

	[build/windows] Improve UWP support.

	* builds/windows/ftsystem.c [UWP]: Wrap CreateFile2 into CreateFileA.

2022-03-21  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/ttkern.c (tt_face_get_kerning): Exit early if no table.

	Fixes #1141.

2022-03-20  Ben Wagner  <bungeman@chromium.org>

	[woff2] Support overlap flag for simple glyphs.

	In the woff2 spec it has been proposed to allow the OVERLAP_SIMPLE flag
	to be retained through the woff2 format [0].

	[0] https://www.w3.org/TR/WOFF2/#glyf_table_format

	* src/sfnt/sfwoff2.h (GLYF_OVERLAP_SIMPLE): add glyf flag.

	* src/sfnt/sfwoff2.c (reconstruct_glyf): parse optionFlags and
	overlapSimpleBitmap[]. (store_points): set OVERLAP_SIMPLE on first point's
	flag if the overlap bit is set.

2022-03-19  Werner Lemberg  <wl@gnu.org>

	[cff] Synchronize `cff_slot_load` with `TT_Load_Glyph`.

	* src/cff/cffgload.c (IS_DEFAULT_INSTANCE): New macro.
	(cff_slot_load): Use it.

2022-03-19  Werner Lemberg  <wl@gnu.org>

	* src/base/ftobjs.c (FT_Request_Size): Guard `face->size`.

	Fixes #1140.

2022-03-19  Werner Lemberg  <wl@gnu.org>

	* src/base/ftobjs.c (ft_open_face_internal): Thinko.

2022-03-19  Ben Wagner  <bungeman@chromium.org>

	[doc] FT_OUTLINE_OVERLAP was introduced in 2.10.3.

	* include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Document when added.

2022-03-19  Werner Lemberg  <wl@gnu.org>

	* src/base/ftobjs.c (ft_open_face_internal): Properly guard `face_index`.

	We must ensure that the cast to `FT_Int` doesn't change the sign.

	Fixes #1139.

2022-03-17  Werner Lemberg  <wl@gnu.org>

	[sfnt] Avoid invalid face index.

	Fixes #1138.

	* src/sfnt/sfobjs.c (sfnt_init_face), src/sfnt/sfwoff2.c (woff2_open_font):
	Check `face_index` before decrementing.

2022-03-07  Werner Lemberg  <wl@gnu.org>

	Documentation, whitespace.

2022-03-05  Anuj Verma  <anuj@womp.xyz>

	[sdf] Fix corner checks and improve performance.

	* src/sdf/ftsdf.c (sdf_generate_bounding_box): Always check for a corner if
	two distances (for different curves) are very close.

	(sdf_conic_to): Check whether the conic curve can be treated as a line
	(which happens if the control point coincides with any end point).

2022-03-05  Anuj Verma  <anuj@womp.xyz>

	[sdf] Implement deviation-based splitting for Bezier curves.

	* src/sdf/ftsdf.c (split_sdf_cubic, split_sdf_shape): Add checks to figure
	out the deviation of Bezier curves and stop splitting if the curve is flat
	enough.

	* src/sdf/ftsdfcommon.h (ONE_PIXEL): New macro.

2022-03-05  Anuj Verma  <anuj@womp.xyz>

	* include/freetype/freetype.h: Improve SDF documentation.

2022-03-03  Ben Wagner  <bungeman@chromium.org>

	[sfnt] Fix bounds check in SVG.

	The `SVG_DOCUMENT_LIST_MINIMUM_SIZE` macro is non trivial and not
	protected by parentheses. As a result, the expression
	`table_size - SVG_DOCUMENT_LIST_MINIMUM_SIZE` expands to
	`table_size - 2U + SVG_DOCUMENT_RECORD_SIZE` instead of the expected
	`table_size - (2U + SVG_DOCUMENT_RECORD_SIZE)`. This causes an incorrect
	bounds check which may lead to reading past the end of the `SVG ` table.

	* src/sfnt/ttsvg.c (tt_face_load_svg): wrap macro definitions in
	parentheses.

	Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45179

2022-02-23  Ben Wagner  <bungeman@chromium.org>

	[psaux] Full bounds check for OtherSubr 19.

	It is possible for OtherSubr 19 to be invoked when `decoder->buildchar` is
	NULL (so that `decoder->len_buildchar` is 0), the `blend` is non-NULL with
	`blend->num_designs` set to 2, and the user supplied `idx` to be large (for
	example 0xFFFFFFFE).  Since these are all `FT_UInt32` the existing bounds
	check overflows in a well defined manner, allowing for an invalid call to
	`memcpy`.

	In addition, it is possible to call OtherSubr 19 with
	`decoder->len_buildchar`, `blend->num_designs`, and `idx` all zero (implying
	that `blend->weight_vector` and `decoder->buildchar` are NULL).  This passes
	the bounds check (it is logically always fine to copy nothing starting at
	index zero) but may invoke undefined behavior in `ft_memcpy` if it is backed
	by `memcpy`.  Calling `memcpy` with either the `src` or `dst` NULL is
	undefined behavior (even if `count` is zero).

	* src/psaux/psintrp.c (cf2_interpT2CharString): Correctly check that
	`blend->num_designs` can be copied to `decoder->buildchar[idx]`.
	Also avoid passing NULL to `ft_memcpy`.

	Bug: https://crbug.com/1299259

2022-02-21  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cmake] Drop the support of CMake 2.x.

	* CMakeLists.txt: Require CMake 3.0 (released on 2014) or newer.

	The issue #1059 reports the difficulty to support both of
	CMake 2.x and newer one by single CMakeLists.txt without
	the inflation of cmake_policy() workarounds.

	For better maintainability, the support of CMake 2.x is
	dropped.

2022-02-19  Werner Lemberg  <wl@gnu.org>

	* src/bdf/README: Updated.

2022-02-19  Werner Lemberg  <wl@gnu.org>

	* builds/mac/ftmac.c, src/base/ftmac.c: s|FT_MAC_H|<freetype/ftmac.h>|.

2022-02-19  Werner Lemberg  <wl@gnu.org>

	src/sfnt/ttkern.c (tt_face_load_kern): Micro-optimize.

	A kerning table can be handled by binary search if it has equal entries.

	Fixes #1132.

2022-02-17  Steve Lhomme  <robux4@ycbcr.xyz>
	    Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Add support for legacy UWP builds.

	* builds/windows/ftsystem.c: Add neccessary macro substitutions to
	enable strict UWP builds.

	See !141.

2022-02-16  Werner Lemberg  <wl@gnu.org>

	ftmm.h: Minor documentation improvement.

2022-02-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Tune PSH_STRONG_THRESHOLD_MAXIMUM value.

	Before the change, the hinting engine frequently confused horizontal
	stem and serif hints making some stems too thin and some serifs too
	thick. The value was tuned using serif fonts from the URW+ base 35
	collection.

	* src/pshinter/pshalgo.c [PSH_STRONG_THRESHOLD_MAXIMUM]: s/30/12/.

2022-02-12  Werner Lemberg  <wl@gnu.org>

	t1tables.h: Documentation improvements.

2022-02-12  Werner Lemberg  <wl@gnu.org>

	t1tables.h: Whitespace.

2022-02-11  Werner Lemberg  <wl@gnu.org>

	[type42] Fix `FT_Get_PS_Font_Private` for this format.

	Since Type42 fonts don't have a 'Private' dictionary, the return value
	should be `FT_Err_Invalid_Argument`.

	* src/type42/t42drivr.c (t42_ps_get_font_private): Removed.
	(t42_service_ps_info): Updated.

2022-02-09  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Clear reused mask.
	
	In PS hinter, memory allocations persist until the module is done.
	Therefore, we have to clear reused masks.
	
	* src/pshinter/pshrec.c (ps_mask_table_alloc): Clear reused mask.

2022-02-09  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Use unsigned indices.
	
	This reduces casting and eliminates some checks.
	
	* src/pshinter/pshrec.c (ps_mask_test_bit, ps_mask_table_merge,
	ps_dimension_add_t1stem, ps_hints_t1stem3): Updated.
	(ps_dimension_add_counter): Updated, unnecessary checks removed.

2022-02-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Fix mask merging.

	We forgot to update the number of bits when merging a larger mask
	into a smaller one.  This fix might have rendering effects.

	* src/pshinter/pshrec.c (ps_mask_table_merge): Inherit the number
	of bits from a larger mask. There is no need to zero unused bits,
	already zeroed during allocation.
	(ps_mask_clear_bit): Removed.
	(ps_mask_ensure): Minor.

2022-02-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Revise the hint table handling.
	
	* src/pshinter/pshrec.c (ps_hint_table_ensure): Remove redundant size
	check; avoid array zeroing because it is fully initialized when used.
	(ps_hint_table_alloc): Fix off-by-one comparison and remove another
	zeroing of the array elements.

2022-02-06  Werner Lemberg  <wl@gnu.org>

	Various minor doc fixes.

2022-02-06  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Add SVG to to project files.

	* builds/windows/vc2010/freetype.vcxproj: Updated.
	* builds/windows/vc2010/freetype.vcxproj.filters: Updated.
	* builds/windows/visualc/freetype.vcproj: Updated.

2022-02-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/winfonts/winfnt.c (fnt_face_get_dll_font): Trace font resources.

2022-02-02  Eric Jing  <@CPUcontrol>

	[cmake] Fix build on MacOS.

	* CMakeLists.txt (CMAKE_OSX_ARCHITECTURES): Update value to fix the building
	of a framework on MacOS.

	* builds/mac/freetype-Info.plist (CFBundleExecutable): Make identifier
	lowercase only.

	Fixes #1127.

2022-02-02  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[psaux] Revise `PS_Table` handling.

	The old impleemntation was not using `FT_REALLOC`, buing too careful
	with the offset rebasing.  It shoudl be safe to rely on the base
	movements.

	* src/psaux/psobjs.c (reallocate_t1_table, shift_elements): Combine
	into...
	(ps_table_realloc): ... this function based on `FT_REALLOC`.
	(ps_table_done): Simplified.
	(ps_table_add): Updated.

2022-02-02  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cache/ftcmru.c (FTC_MruList_New): Explain zeroing.

2022-01-31  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Partially revert 9870b6c07e2c.
	
	Fix crashes reported by Werner.
	
	* src/cache/ftcmru.c (FTC_MruList_New): Use `FT_ALLOC` again.

2022-01-31  Werner Lemberg  <wl@gnu.org>

	freetype.h: Minor documentation improvement.

2022-01-31  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Fix fallouts from edd4fedc5427.

	Reported by Werner.

	* src/cache/ftcimage.c (FTC_INode_New): Always initialize FT_Glyph.
	* src/cache/ftcsbits.c (FTC_SNode_New): Always initialize FT_SBit.

2022-01-31  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Clean-up - do not doubt FT_FREE.

	* src/base/ftobjs.c (memory_stream_close): Do not reassign zero
	after `FT_FREE`.
	* src/sfnt/sfwoff.c (sfnt_stream_close): Ditto.
	* src/sfnt/sfwoff2.c (stream_close): Ditto.
	* src/psaux/psobjs.c (ps_parser_load_field): Ditto.
	* src/truetype/ttgxvar.c (ft_var_load_avar, tt_set_mm_blend,
	tt_set_mm_blend): Ditto.

2022-01-30  Werner Lemberg  <wl@gnu.org>

	* CMakeLists.txt: Include 'FindPkgConfig' module.

	Older cmake versions don't provide `pkg_check_modules` by default.

	Fixes #1126.

2022-01-30  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/psaux/psobjs.c (ps_parser_load_field): Reduce `string` scope.

2022-01-29  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[cmake] Check the availability of `bzip2.pc'.

	(CMakeLists.txt): Check the availability of `bzip2.pc'.

	* If `bzip2.pc' is available, Requires.private should include
	bzip2, but Libs.private should not include -lbz2.

	* If `bzip2.pc' is unavailable, Requires.private cannot include
	bzip2, but Libs.private should include -lbz2.

	Fix #897.

2022-01-28  Werner Lemberg  <wl@gnu.org>

	* unix/configure.raw: We need 'librsvg' version 2.46.0 or newer.

	Older versions don't have function `rsvg_handle_get_intrinsic_dimensions`.

2022-01-28  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Minor clean-ups.

	* src/base/ftrfork.c (raccess_make_file_name): Do not set error.
	* src/sfnt/sfdriver.c (get_win_string, get_apple_string): Ditto.
	* src/cff/cffobjs.c (cff_strcpy): Do not confuse about error.
	* src/psaux/psobjs.c (ps_table_done): Ditto.
	* src/truetype/ttgxvar.c (ft_var_readpacked*, ft_var_load_avar): Ditto.

2022-01-27  Ben Wagner  <bungeman@chromium.org>

	Document `FT_Outline_Decompose` degenerate segments.

	`FT_Outline_Decompose` does not filter out and can return degenerate
	segments in an outline. This can be surprising when attemping to
	stroke such an outline. Clarify the existing documentation on this
	matter to cover all forms of degeneracy (without specifying exactly
	how they will be reported), why they might arise, and better explain in
	what cases they may be an issue.

	* include/freetype/ftoutlin.h (FT_Outline_Decompose): update
	documentation.

	Fixes #952.

2022-01-27  Anuj Verma  <anujv@posteo.net>

	Fix sdf computation while `USE_SQUARED_DISTANCES`.

	Function `map_fixed_to_sdf` expects spread to be absolute
	and not squared.

	* src/sdf/ftbsdf.c (finalize_sdf): Pass absolute spread
	while `map_fixed_to_sdf`.

	* src/sdf/ftsdf.c (sdf_generate_bounding_box): Ditto.

2022-01-27  Tapish Ojha  <tapishojha2000@gmail.com>

	[sfnt] Improve sRGB constants.

	* src/base/ftbitmap.c (ft_gray_for_premultiplied_srgb_bgra): Use slightly
	more precise values.

	Fixes #1018.

2022-01-27  Werner Lemberg  <wl@gnu.org>

	docs/release: Updated.

2022-01-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/pfr/pfrload.c (pfr_phy_font_load): Use FT_QNEW_ARRAY.

2022-01-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/sdf/ftsdf.c (sdf_*_new): Use standard macro.

2022-01-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pcf] Delay encoding allocation and avoid its zeroing.

	* src/pcf/pcfread.c (pcf_get_encodings): Refactor and use FT_QNEW_ARRAY.

2022-01-25  Werner Lemberg  <wl@gnu.org>

	Aarg, typo.

2022-01-25  Werner Lemberg  <wl@gnu.org>

	freetype.h: More updates to `FT_LOAD_COLOR` description.

2022-01-25  Werner Lemberg  <wl@gnu.org>

	* builds/unix/configure.raw (FT_DEMO_CFLAGS): Pass `-DHAVE-LIBRSVG`.

	This helps in decoupling library support from `pkg-config` for other
	platforms.

2022-01-25  Werner Lemberg  <wl@gnu.org>

	Update documentation for `FT_LOAD_COLOR`.

2022-01-24  Ben Wagner  <bungeman@chromium.org>

	[pshinter] Ensure all point flags are initialized.

	Only off curve point flags were fully initialized.

	* src/pshinter/pshalgo.c (psh_glyph_init): always initialize flags.

	Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43930

2022-01-24  Werner Lemberg  <wl@gnu.org>

	.mailmap: Typo.

2022-01-23  Werner Lemberg  <wl@gnu.org>

	* src/svg/ftsvg.c (ft_svg_property_set): Disallow NULL pointers.

2022-01-23  Werner Lemberg  <wl@gnu.org>

	.mailmap: Updated.

2022-01-23  Werner Lemberg  <wl@gnu.org>

	More documentation on handling OT-SVG.

2022-01-23  Werner Lemberg  <wl@gnu.org>

	* src/svg/ftsvg.c: Rename `svg_hooks` to `svg-hooks` for consistency.

2022-01-22  Werner Lemberg  <wl@gnu.org>

	[sfnt] Reject malformed SVG tables.

	* src/sfnt/ttsvg.c (SVG_TABLE_HEADER_SIZE, SVG_DOCUMENT_RECORD_SIZE,
	SVG_DOCUMENT_LIST_MINIMUM_SIZE, SVG_MINIMUM_SIZE): New macros.
	(tt_face_load_svg): Check offsets.
	Check table and record sizes.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43918

2022-01-22  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/psaux/psobjs.c (ps_table_new): Revert to zeroing.

2022-01-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[psaux, type1, type42] Avoid annecessary zeroing.

	* src/psaux/psobjs.c (ps_table_new): Use FT_QNEW_ARRAY.
	* src/type1/t1load.c (parse_encoding): Ditto.
	* src/type42/t42parse.c (t42_parse_encoding): Ditto.

2022-01-20  Werner Lemberg  <wl@gnu.org>

	[builds/unix] Handle 'librsvg' for demo programs.

	* builds/unix/configure.raw: Check for 'librsvg'.
	(LIB_CLOCK_GETTIME): Don't call `AC_SUBST` on this but on...
	(FT_DEMO_CFLAGS, FT_DEMO_LDFLAGS): ... these two new variables.

	* builds/unix/unix-cc.in (LIB_CLOCK_GETTIME): Replaced by...
	(FT_DEMO_CFLAGS, FT_DEMO_LDFLAGS): ... these two new variables.

2022-01-20  Moazin Khatti  <moazinkhatri@gmail.com>

	Add 'svg' module for OT-SVG rendering.

	* CMakeLists.txt (BASE_SRCS): Add svg module file.
	* meson.build (ft2_public_headers): Add `otsvg.h`.

	* modules.cfg (RASTER_MODULES): Add `svg` module.

	* builds/meson/parse_modules_cfg.py: Add svg module.

	* include/freetype/config/ftmodule.h: Add `ft_svg_renderer_class`.
	* include/freetype/fterrdef.h: Add `Invalid_SVG_Document` and
	`Missing_SVG_Hooks` error codes.
	* include/freetype/internal/fttrace.h: Add tracing for `otsvg`.
	* include/freetype/internal/svginterface.h: New file.  It adds an interface
	to enable the presetting hook from the `base` module.
	* include/freetype/otsvg.h (SVG_Lib_Init_Func, SVG_Lib_Free_Func,
	SVG_Lib_Render_Func, SVG_Lib_Preset_Slot_Func): New hooks for SVG rendering.
	(SVG_RendererHooks): New structure to access them.

	* src/base/ftobjs.c: Include `svginterface.h`.
	(ft_glyphslot_preset_bitmap): Add code for presetting the slot for SVG
	glyphs.
	(ft_add_renderer): Updated.

	* src/svg/*: New files.

2022-01-20  Moazin Khatti  <moazinkhatri@gmail.com>

	Add `FT_Glyph` support for OT-SVG glyphs.

	* include/freetype/ftglyph.h (FT_SvgGlyphRec, FT_SvgGlyph): New structure.

	* src/base/ftglyph.c: Include `otsvg.h`.
	(ft_svg_glyph_init, ft_svg_glyph_done, ft_svg_glyph_copy,
	ft_svg_glyph_transform, ft_svg_glyph_prepare): New function.
	(ft_svg_glyph_class): New class.
	(FT_New_Glyph, FT_Glyph_To_Bitmap): Updated to handle OT-SVG glyphs.
	* src/base/ftglyph.h: Updated.

2022-01-20  Moazin Khatti  <moazinkhatri@gmail.com>

	[truetype, cff] Add code to load SVG document.

	* src/cff/cffgload.c (cff_slot_load): Add code to load SVG doc.
	* src/truetype/ttgload.c (TT_Load_Glyph): Add code to load SVG doc.

2022-01-20  Moazin Khatti  <moazinkhatri@gmail.com>

	Add code to load OT-SVG glyph documents.

	* include/freetype/config/ftheader.h (FT_OTSVG_H): New macro.
	* include/freetype/freetype.h (FT_FACE_FLAG_SVG, FT_HAS_SVG): New macros.
	(FT_LOAD_SVG_ONLY): New internal macro.
	* include/freetype/ftimage.h (FT_Glyph_Format): New enumeration value
	`FT_GLYPH_FORMAT_SVG`.
	* include/freetype/internal/ftobjs.h (FT_GLYPH_OWN_GZIP_SVG): New macro.
	* include/freetype/internal/fttrace.h: Add `ttsvg` for `ttsvg.c`.
	* include/freetype/internal/sfnt.h(load_svg, free_svg, load_svg_doc): New
	functions.
	* include/freetype/internal/tttypes.h (TT_FaceRec): Add `svg` for
	the SVG table.
	* include/freetype/otsvg.h (FT_SVG_DocumentRec): New structure to hold the
	SVG document and other necessary information of an OT-SVG glyph in a glyph
	slot.
	* include/freetype/tttags.h (TTAG_SVG): New macro.

	* src/base/ftobjs.c: Include `otsvg.h`.
	(ft_glyphslot_init): Allocate `FT_SVG_DocumentRec` in `slot->other`
	if the SVG table exists.
	(ft_glyphslot_clear): Free it upon clean-up if it is a GZIP compressed
	glyph.
	(ft_glyphslot_done): Free the document data if it is a GZIP compressed
	glyph.
	(FT_Load_Glyph): Don't auto-hint SVG documents.

	* src/cache/ftcbasic.c (ftc_basic_family_load_glyph): Add support for
	FT_GLYPH_FORMAT_SVG.

	* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttsvg.c`.
	* src/sfnt/sfdriver.c: Include `ttsvg.h`.
	(sfnt_interface): Add `tt_face_load_svg`, `tt_face_free_svg` and
	`tt_face_load_svg_doc`.
	* src/sfnt/sfnt.c: Include `ttsvg.c`.
	* src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Add code to load and
	free data of the the SVG table.
	* src/sfnt/ttsvg.c: New file, implementing `tt_face_load_svg`,
	`tt_face_free_svg` and `tt_face_load_svg_doc`.
	* src/sfnt/ttsvg.h: Declarations of the SVG functions in
	`ttsvg.c`.

2022-01-20  Moazin Khatti  <moazinkhatri@gmail.com>

	Add flag `FT_CONFIG_OPTION_SVG`.

	This flag is going to be used to conditionally compile support for OT-SVG
	glyphs.  FreeType will do the parsing and rely on external hooks for
	rendering of OT-SVG glyphs.

	* devel/ftoption.h, include/freetype/config/ftoption.h
	(FT_CONFIG_OPTION_SVG): New flag.

2022-01-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Avoid unnecessary zeroing.
	
	* src/pshinter/pshalgo.c (psh_hint_table_init,psh_glyph_init,
	psh_glyph_interpolate_normal_points): Use FT_QNEW_ARRAY.

2022-01-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* include/freetype/freetype.h: Clarify `FT_Size` life cycle.

2022-01-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[base] Undefined scale means no scale.

	It might be surprising that FreeType does not have default ppem and
	the size has to be set explicitly or face undefined behavior with
	undefined variables and errors. This offers an alternative to
	missing or zero scale by simply setting FT_LOAD_NO_SCALE.  Defined
	behavior is bettr than undefined one.

	This is alternative to !132 and discussed in
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43708

	* src/base/ftobjs.c (FT_Load_Glyph): Deal with zero scale.
	* include/freetype/freetype.h: Document it.

2022-01-18  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/autofit/afglobal.c (af_face_globals_new): Reduce zeroing.

	Everything in AF_FaceGlobals is initialized except metrics.  Those
	are zeroed here and initialized on demand later.

2022-01-16  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[bdf,type1] Avoid unnecessary hash zeroing.

	* src/bdf/bdflib.c (_bdf_parse_start): Use `FT_QALLOC`.
	* src/type1/t1load.c (parse_subrs): Use `FT_QNEW`.

2022-01-16  Ozkan Sezer  <sezeroz@gmail.com>

	Add Watcom C/C++ calling.

	In the unlikely case the source is built with OpenWatcom's -ec?
	switches to enforce a calling convention, the qsort() compare
	function must still be set to __watcall.

	* include/freetype/internal/compiler-macros.h (FT_COMPARE_DEF):
	Updated.

2022-01-15  Ben Wagner  <bungeman@chromium.org>

	[pshinter] Avoid accessing uninitialized zone.

	The `normal_top.count` may be 0, implying no `normal_top.zones` exist.
	The code must not access these (non-existent) `normal_top.zones`.

	* src/pshinter/pshalgo.c (ps_hints_apply): Do not assume that
	`normal_top.zones[0]` is initialized. Test `normal_top.count`
	before using `normal_top.zones[0]`. Do not rescale if there are no
	`zones`.

	Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43675

2022-01-15  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Avoid unnecessary zeroing.

	* src/cache/ftccmap.c (ftc_cmap_node_new): Use `FT_QNEW`.
	* src/cache/ftcimage.c (FTC_INode_New): Ditto.
	* src/cache/ftcsbits.c (FTC_SNode_New): Ditto.

2022-01-15  Ozkan Sezer  <sezeroz@gmail.com>

	Add Watcom C/C++ support.

	* include/freetype/config/integer-types.h: Make sure `long long` is
	used then available.
	* include/freetype/internal/ftcalc.h (FT_MSB): Add Watcom C/C++ pragma.

2022-01-15  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/sdf/ftbsdf.c (ED): s/near/prox/.

	This works around the Watcom C definition of `near` as restricted
	__near.

2022-01-15  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* include/freetype/internal/compiler-macros.h [FT_COMPARE_DEF]: Tighten.

	This works around Watcom C library using __watcall.

2022-01-14  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/pshinter/pshglob.c (psh_globals_new): Avoid zeroing.

	This large allocation is followed by careful initialization. Whatever
	is missed should be initialized manually.

2022-01-14  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/base/fthash.c (hash_insert): Avoid unnecessary zeroing.

2022-01-14  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/bdf/bdflib.c (_bdf_parse_glyphs): Remove redundant assignment.

2022-01-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/lzw/ftlzw.c (FT_Stream_OpenLZW): Avoid unnecessary zeroing.

2022-01-13  Ben Wagner  <bungeman@chromium.org>

	[bzip2] Reset bzip stream on any error.

	According to the bzip documentation it is undefined what will happen if
	`BZ2_bzDecompress` is called on a `bz_stream` it has previously returned an
	error against.  If `BZ2_bzDecompress` returns anything other than `BZ_OK`
	the only valid next action is `BZ2_bzDecompressEnd`.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43564

	* src/bzip2/ftbzip2.c (FT_BZip2FileRec_): Add `reset` to track the need to
	reset the stream.
	(ft_bzip2_file_init): Initialize `reset` to 0.
	(ft_bzip2_file_reset): Set `reset` to 0 after resetting.
	(ft_bzip2_file_fill_output): Set `reset` to 1 when `BZ2_bzDecompress`
	returns anything other than `BZ_OK`.

2022-01-12  Werner Lemberg  <wl@gnu.org>

	.gitlab-ci.yml: Minor comment cleanups.

2022-01-12  Azamat H. Hackimov  <azamat.hackimov@gmail.com>

	.gitlab-ci.yml: Add steps to `before_script` to ensure recent CA.

	Fetch current list of valid CAs from Windows Update and manually import them
	to trusted datastore.  This action is required to make downloads work from
	sites that need recent Let's Encrypt ISRG Root X1 certificate.

2022-01-11  Ben Wagner  <bungeman@chromium.org>

	Revert "[bzip2] Avoid use of uninitialized memory."

	This reverts commit d276bcb7f0c02c20d3585b2e5626702df6d140a6.

	The original commit did avoid the use of uninitialized memory. However,
	it appears that the original commit is no longer required. The
	underlying issue was resolved by a change in freetype2-testing "Build
	bzip2 correctly." [0]. Prior to [0] bzip2 was built without msan, so
	bzip2 writes were not tracked or considered initialized. Clearing
	`buffer` in the original commit allowed msan to see the `buffer` content
	initialized once in FreeType code, but msan saw no writes into buffer
	from bzip2.  With bzip2 now built with msan, the bzip2 writes are
	properly instrumented and msan sees the bzip2 writes into the buffer. As
	a result the original commit can be safely reverted to allow for better
	detection of other uninitialized data scenarios.

	* src/bzip2/ftbzip2.c (FT_Stream_OpenBzip2): Revert to using `FT_QNEW`.

	[0] https://github.com/freetype/freetype2-testing/commit/3c052a837a3c960709227a0d6ddd256e87b88853

2022-01-11  Ben Wagner  <bungeman@chromium.org>

	[type42] Track how much type42 ttf data is available.

	Currently `T42_Open_Face` eagerly allocates 12 bytes for the ttf header
	data which it expects `t42_parse_sfnts` to fill out from /sfnts data.
	However, there is no guarantee that `t42_parse_sfnts` will actually be
	called while parsing the type42 data as the /sfnts array may be missing
	or very short. This is also confusing behavior as it means
	`T42_Open_Face` is tightly coupled to the implementation of the very
	distant `t42_parse_sfnts` code which requires at least 12 bytes to
	already be reserved in `face->ttf_data`.

	`t42_parse_sfnts` itself eagerly updates `face->ttf_size` to track how
	much space is reserved for ttf data instead of traking how much data has
	actually been written into `face->ttf_data`. It will also act strangely
	in the presense of multiple /sfnts arrays.

	* src/type42/t42objs.c (T42_Open_Face): ensure `ttf_data` is initialized
	to NULL. Free `ttf_data` on error.

	* src/type42/t42parse.c (t42_parse_sfnts): delay setting `ttf_size` and
	set it to the actual number of bytes read. Ensure `ttf_data` is freed
	if there are multiple /sfnts arrays or there are any errors.

2022-01-11  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Fix limit checks for `COLR` v1 ClipBoxes

	* src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Fix off-by-one in
	limit checks.

2022-01-11  Werner Lemberg  <wl@gnu.org>

	Update all copyright notices.

2022-01-11  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/ttcolr.c (read_paint): Fix undefined left-shift operation.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43151

2022-01-11  Werner Lemberg  <wl@gnu.org>

	* src/type42/t42objs.c (T42_Open_Face): Avoid use of uninitialized memory.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43508

2022-01-11  Werner Lemberg  <wl@gnu.org>

	.gitlab-ci.yml: Fix typo in previous commit.

2022-01-11  Werner Lemberg  <wl@gnu.org>

	.gitlab-ci.yml: Update Windows image.

	The old image produced errors like

	```
	Downloading zlib patch from
	  https://wrapdb.mesonbuild.com/v2/zlib_1.2.11-5/get_patch
	A fallback URL could be specified using patch_fallback_url key in the wrap file
	WrapDB connection failed to
	  https://wrapdb.mesonbuild.com/v2/zlib_1.2.11-5/get_patch
	with error
	  <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify
	   failed: certificate has expired (_ssl.c:1122)>
	```

2022-01-11  Werner Lemberg  <wl@gnu.org>

	* subprojects/zlib.wrap: Update from upstream.

2022-01-10  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Add limit checks.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40716

2022-01-10  Werner Lemberg  <wl@gnu.org>

	[zlib] Don't typedef `ptrdiff_t`.

	While using zlib in 'solo' mode (via the `Z_SOLO` macro), we actually
	include some standard header files, making the typedef fail on systems where
	the native `ptrdiff_t` type differs.

	Fixes #1124.

	* src/zlib/zutil.h: Comment out definition; it doesn't work on Windows.

	* src/zlib/patches/freetype-zlib.diff: Updated.

2022-01-10  Werner Lemberg  <wl@gnu.org>

	[zlib] Some organizational changes.

	We now first apply zlib's `zlib2ansi` script, then FreeType's patch file.

	* src/gzip/README.freetype: Updated.

	* patches/0001-zlib-Fix-zlib-sources-to-compile-for-FreeType.patch: Renamed
	to...
	* patches/freetype-zlib.diff: This.
	Clean up description, then regenerate it as follows:

	  - Copy unmodified files from `zlib` repository.
	  - Run `zlib2ansi` script.
	  - Run `git diff -R > patches/freetype-zlib.diff.new`.
	  - Insert patch description of old diff file, then replace old diff with
	    new diff file.

2022-01-09  David Turner  <david@freetype.org>

	[gzip] Update sources to zlib 1.2.11

	This can be tested by building with the Unix development build

	  make setup devel
	  make

	or by building the freetype-demos programs with

	  meson setup build -Dfreetype2:zlib=internal
	  meson compile -C out

	and trying to run `ftview` with a `.pcf.gz` font file.

	* src/gzip/ftgzip.c, src/gzip/rules.mk: Update for new zlib sources.  Also
	remove the temporary fix introduced in commit 6a431038 to work around the
	fact that the internal sources were too old.

	* src/gzip/README.freetype: New file describing the origin of the sources
	and how they were modified.

	* src/gzip/patches/*: Patch files applied to original sources.

	* src/gzip/*: Updated zlib sources with the patch file(s) from
	`src/gzip/patches/` applied, followed by a conversion with zlib's
	`zlib2ansi` script.

2022-01-09  David Turner  <david@freetype.org>

	[meson] Change Zlib configuration option.

	* meson_options.txt, meson.build: Change the format of the 'zlib' meson
	build configuration option to be a combo with the following choices:

	  - none: Do not support gzip-compressed streams at all.

	  - internal: Support gzip-compressed streams using the copy of the gzip
	    sources under `src/gzip/`; this should only be used during development
	    to ensure these work properly.

	  - external: Support gzip-compressed streams using the 'zlib' Meson
	    subproject, linked as a static library.

	  - system: Support gzip-compressed streams using a system-installed version
	    of zlib.

	  - auto: Support gzip-compressed streams using a system-installed version
	    of zlib, if available, or using the 'zlib' subproject otherwise.  This
	    is the default.

	  - disabled: Backward-compatible alias for 'none'.

	  - enabled: Backward-compatible alias for 'auto'.

2022-01-09  Werner Lemberg  <wl@gnu.org>

	[bzip2] Avoid use of uninitialized memory.

	* src/bzip2/ftbzip2.c (FT_Stream_OpenBzip2): Don't use `FT_QNEW` but
	`FT_NEW` for setting up `zip` to avoid uninitialized memory access while
	handling malformed PCF fonts later on.

	Fixes

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42800

2022-01-09  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[sfnt] Fix off-by-one error.

	The 0-base index is equal to the number of previosly parsed entries.
	It is an error to adjust it by one to get the number truncated by
	a stream error.  This is probably inconsequential because valid
	entries are correctly accounted for.

	* src/sfnt/ttload.c (check_table_dir): Do not adjust the truncated
	number of tables.

2022-01-08  Werner Lemberg  <wl@gnu.org>

	[sfnt, type42] Correct previous commit.

	Really fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42773.

	* src/sfnt/ttload.c (check_table_dir): Revert change.

	* src/type42/t42.parse.c (t42_parse_sfnts): Don't use `FT_QREALLOC` but
	`FT_REALLOC` for setting up `ttf_data` to avoid uninitialized memory access
	while handling malformed TrueType fonts later on.

2022-01-07  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/ttload.c (check_table_dir): Initialize `table`.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42773

2022-01-07  Werner Lemberg  <wl@gnu.org>

	[sfnt] Avoid 'runtime error: applying zero offset to null pointer'.

	* src/sfnt/ttsbit.c (tt_sbit_decoder_load_byte_aligned): Exit early if
	`line` is NULL.

2022-01-07  Werner Lemberg  <wl@gnu.org>

	[autofit, pshinter] Use `FT_OFFSET`.

	This avoids

	```
	runtime error: applying zero offset to null pointer
	```

	warnings of clang's undefined behaviour sanitizer.

	* src/autofit/afcjk.c (af_cjk_hints_link_segments,
	af_cjk_hints_compute_edges, af_cjk_hints_compute_blue_edges,
	af_cjk_hint_edges, af_cjk_align_edge_points): Do it.

	* src/autofit/afhints.c (af_glyph_hints_align_edge_points,
	af_glyph_hints_align_strong_points): Ditto.

	* src/autofit/aflatin.c (af_latin_metrics_init_widths,
	af_latin_hints_link_segments, af_latin_hints_compute_edges,
	af_latin_hints_compute_blue_edges, af_latin_hint_edges): Ditto.

	* src/pshinter/pshalgo.c (psh_hint_table_init): Ditto.

2022-01-06  Ben Wagner  <bungeman@chromium.org>

	[truetype] Reset localpoints when varying cvt.

	When iterating over the cvt tuples and reading in the points it is necessary
	to set all of `localpoints`, `points`, and `point_count` in all cases.  The
	existing code did not reset `localpoints` to `NULL` when there were no
	private point numbers.  If the previous tuple did have private point numbers
	and set `localpoints` to `ALL_POINTS` this would not be cleared and the
	wrong branch would be taken later, leading to possible heap buffer overflow.

	* src/truetype/ttgxvar.c (tt_face_vary_cvt): Reset `localpoints` to `NULL`
	when it isn't valid.

	Fixes: https://crbug.com/1284742

2022-01-02  Werner Lemberg  <wl@gnu.org>

	* builds/unix/configure.raw: Restore `SYSTEM_ZLIB` variable.

	This was accidentally removed with commit 93ebcbd0 almost eight years ago.

2021-12-27  Alexander Borsuk  <me@alex.bio>

	Fix warnings for CMake Unity builds.

	* src/cache/ftcbasic.c (FT_COMPONENT): Undefine macro before redefinition.
	* src/smooth/ftgrays.c (TRUNC, FRACT): Ditto.

2021-12-18  Alexander Borsuk  <alexander.borsuk@qnective.com>

	Clang-Tidy warning fixes.

	* src/base/ftobjs.c (FT_Get_Paint): Operator has equivalent nested operands.
	* src/bdf/bdflib.c (_bdf_add_property): Value stored to `fp` is never read.
	* src/sdf/ftbsdf.c (bsdf_init_distance_map): Value stored to `pixel` is
	never read.
	* src/sdf/ftsdf.c (split_sdf_shape): Value stored to `error` is never read.

2021-12-17  Eli Schwartz  <eschwartz@archlinux.org>

	* meson.build: Optimize lookup for `python3` program.

	The python module's `find_installation` method is intended to provide
	routines for compiling and installing python modules into the
	`site-packages` directory.  It does a couple of slow things, including run
	an introspection command to scrape sysconfig info from the detected
	interpreter, which are not needed for the sole use case of invoking the
	found installation as an executable.

	Furthermore, when invoked without the name or path of a python binary, it is
	hardcoded to always look for `python3` corresponding to the interpreter
	meson itself uses to run.  So using `find_installation` did not even allow
	detecting `python2` as a fallback.

	Instead, switch to a simple `find_program` lookup that finishes as soon as
	the program is found.

2021-12-17  Eli Schwartz  <eschwartz@archlinux.org>

	* builds/meson/*.py: Fix name of python executable for auxiliary scripts.

	The previous change to check the return code of `run_command` invocations
	caused the CI to fail.  Although most scripts used `python_exe` as the
	program command, the script to determine the project version did not.

	But, all scripts used `python` as the shebang, and this is not available on
	all systems.  Particularly Debian does not provide a `python` command,
	though `python3` does exist.  This meant that formerly the version number
	was lacking, and now the build simply fails.

	Instead, rely on `python3` since it is guaranteed to exist when running
	meson, and `python2` is end of life anyway.

2021-12-17  Eli Schwartz  <eschwartz@archlinux.org>

	* meson.build: Check the return value of `run_command`.

	By default, errors are not checked and a command that is somehow broken will
	just capture incorrect output (likely an empty string).  Current development
	versions of meson now raise a warning for this implicit behavior, and advise
	explicitly setting the `check:` keyword argumend to determine whether a
	failing return code should be considered an error.

	Since none of the commands in this project are expected to fail, mark them
	as required to succeed.

2021-12-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Upstream the hdmx binary search.

	* src/truetype/ttobjs.h (TT_SizeRec): Add `widthp` for the hdmx
	widths.
	* src/truetype/ttobjs.c (tt_size_reset): Initialize `widthp` even
	though it might never be used by the interpreter.
	* src/truetype/ttgload.c (tt_loader_init): Avoid repeated searches
	in the hdmx table.

2021-12-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Reset the IUP-called flags for each subglyph.

	This fixes fall-out from 7809007a5b88b15, where the composite
	accents were no longer hinted.

	* src/truetype/ttgload.c (ttloader_init): Move the IUP-called flag
	initialization from here...
	* src/truetype/ttinterp.c (TT_Run_Context): ... to here.

2021-12-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Binary search through the `hdmx` records.

	The `hdmx` table is supposed to be sorted by ppem size, which
	enables binary search.  We also drop the check for the sufficient
	length of the record because it is now enforced when the table
	is loaded.

	* include/freetype/internal/tttypes.h (TT_FaceRec): Store the `hdmx`
	record pointers sorted by ppem instead of ppem's themselves.
	* src/truetype/ttpload.c (tt_face_load_hdmx): Prudently sort records.
	(tt_face_get_device_metrics): Implement binary search to retrieve
	advances.

2021-12-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Honor FT_LOAD_ADVANCE_ONLY if `hdmx` is usable.

	This simply shortcuts the glyph loading if FT_LOAD_ADVANCE_ONLY
	is specified by FT_Get_Advances and the `hdmx` data are located.
	Particularly, the classic v35 interpreter or "verified" ClearType
	fonts might see 100x speed up in retrieving the hdmx cache.

	* src/truetype/ttgload.c (TT_Load_Glyph): Insert the shortcut.

2021-12-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Initialize the loader with `hdmx` data.

	The `hdmx` matching can be done before the glyph is loaded.

	* include/freetype/internal/tttypes.h (TT_LoaderRec): Add a field.
	* src/truetype/ttgload.c (compute_glyph_metrics): Relocate the `hdmx`
	code from here...
	(tt_loader_init): ... to here, before the glyph is loaded.

2021-12-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Relocate subpixel flag setting.

	`TT_RunIns` is too busy to deal with subpixel flags. It is better
	to set them in `tt_loader_init`, which is executed before each
	glyph program.

	* src/truetype/ttinterp.c (TT_RunIns): Move the flag setting from
	here...
	* src/truetype/ttgload.c (tt_loader_init): ... to here.

2021-12-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Limit INSTCTRL appication within specs.

	* src/truetype/ttinterp.c (Ins_INSTCTRL): Limit its global effects
	to the CVT program and local effects to the glyph program.

	This also fixes an Infinality buglet. The `ignore_x_mode` should be
	locally unset by the glyph program.

2021-12-09  Ben Wagner  <bungeman@chromium.org>

	[bdf] Fix use of uninitialized value.

	In _bdf_readstream if the data contained no newline then the buffer
	would continue to grow and uninitialized data read until either the
	uninitialized data contained a newline or the buffer reached its
	maxiumum size. The assumption was that the line was always too long and
	the buffer had been filled, however this case can also happen when there
	is not enough data to fill the buffer.

	Correct this by properly setting the cursor to the end of the available
	data, which may be different from the end of the buffer. This may still
	result in one extra allocation, but only on malformed fonts.

	* src/bdf/bdflib.c (_bfd_readstream): Correctly update cursor. Remove
	unread set of `avail`.

	Bug: https://lists.nongnu.org/archive/html/freetype-devel/2021-12/msg00001.html

2021-12-07  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Reduce Infinality footprint again.

	* src/truetype/ttgload.c (compute_glyph_metrics): Streamline and
	prioritize the Infinality checks to use `hdmx`.

2021-12-07  Cameron Cawley  <ccawley2011@gmail.com>

	[builds/windows] Guard some non-ancient API.

	We can support Windows 98 and NT 4.0 in principle...

	* builds/windows/ftdebug.c, builds/windows/ftsystem.c: Check for the
	ancient SDK using _WIN32_WINDOWS, _WIN32_WCE, or _WIN32_WINNT.

2021-12-07  Cameron Cawley  <ccawley2011@gmail.com>

	* builds/windows/visualc/freetype.vcproj: Add missing file.

2021-12-02  Werner Lemberg  <wl@gnu.org>

	* Version 2.11.1 released.
	==========================

	Tag sources with `VER-2-11-1'.

	* docs/VERSION.TXT: Add entry for version 2.11.1.
	* docs/CHANGES, docs/release: 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/2.11.0/2.11.1/, s/2110/2111/.

	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.

	* builds/unix/configure.raw (version_info): Set to 24:1:18.
	* CMakeLists.txt (VERSION_PATCH): Set to 1.

	* builds/toplevel.mk (version_tag, CHANGELOG_SCRIPT): New variables.
	(do-dist): Generate `ChangeLog` file with all commits since last release.

2021-11-30  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Improve debugging.

	* builds/windows/ftdebug.c (FT_Message, FT_Panic): Buffer output
	and call `OutputDebugStringA` only if `IsDebuggerPresent`.
	[_WIN32_WCE] (OutputDebugStringA): Implement the missing API.

2021-11-29  Seigo Nonaka  <nona@google.com>

	* src/base/ftobjs.c (FT_Request_Metrics): Fix build warning on Android.

	Use casts since `FT_USHORT_MAX` is unsigned short in bionic (libc used in
	Android).

2021-11-28  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* builds/windows/vc2010/freetype.vcxproj (DlgCopy): Minor tweak.

2021-11-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/truetype/ttpload.c (tt_face_load_hdmx): Added comments.

2021-11-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Quietly reject out-of-spec `hdmx` tables.

	The `hdmx` table is optional and can be safely rejected without
	an error if it does not follow specifications. The record size
	must be equal to the number of glyphs + 2 + 32-bit padding.

	* src/truetype/ttpload.c (tt_face_load_hdmx): Thoroughly check
	the record size and improve tracing.

2021-11-23  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Partly revert 5b626281.

	Fixes #1118.

	* src/truetype/ttpload.c (tt_face_load_hdmx): Do not assume that
	`record_size` is rounded even though the records are padded.

2021-11-23  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* builds/windows/vc2010/freetype.vcxproj (DlgCopy): Use transforms.

2021-11-22  Werner Lemberg  <wl@gnu.org>

	Update `CHANGES` files, other minor whitespace and documentation issues.

2021-11-21  Werner Lemberg  <wl@gnu.org>

	formats.txt: Add info about WOFF and WOFF2.

2021-11-21  Werner Lemberg  <wl@gnu.org>

	meson.build: Initialize `common_ldflags`.

2021-11-21  Lukas Oberhuber  <@lukaso>

	* meson.build: Fix compatibility version on MacOS.

	Fixes #1117.

2021-11-21  Werner Lemberg  <wl@gnu.org>

	* src/truetype/ttinterp.c (Ins_MD): Avoid `FT_ABS`.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38562

2021-11-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* include/freetype/fttypes.h (FT_MAKE_TAG): Remove the same casting.

2021-11-20  Werner Lemberg  <wl@gnu.org>

	[gxvalid] Fix minor compilation warning.

	* src/gxvalid/gxvmort5.c (gxv_mort_subtable_type5_subtable_setup): Declare
	as static.

2021-11-20  Werner Lemberg  <wl@gnu.org>

	[smooth] Fix stand-alone compilation.

	* src/smooth/ftgrays.c (FT_Trace_Enable, FT_Trace_Disable)[STANDALONE_]:
	Define.

2021-11-20  Werner Lemberg  <wl@gnu.org>

	Avoid undefined left-shifts.

	We really have to use double casts to avoid issues with C's and C++'s
	signedness propagation rules in implicit casts.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41178
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=41182

	* include/freetype/config/public-macros.h (FT_STATIC_CAST,
	FT_REINTERPRET_CAST): Modify macro to take two arguments.
	Update all callers.
	(FT_STATIC_BYTE_CAST): New macro.

	* include/freetype/freetype.h (FT_ENC_TAG): Use `FT_STATIC_BYTE_CAST`.
	* include/freetype/ftimage.h (FT_IMAGE_TAG): Ditto.
	* include/freetype/fttypes.h (FT_MAKE_TAG): Ditto.
	Use `FT_Tag` for casting.

	* src/ftraster/ftmisc.h (FT_MAKE_TAG): Removed, no longer needed.
	(FT_STATIC_BYTE_CAST): New macro.

	* src/smooth/ftgrays.c (FT_STATIC_CAST): Replace with...
	(FT_STATIC_BYTE_CAST): ... this.

2021-11-18  Werner Lemberg  <wl@gnu.org>

	Provide C++ versions for public macros with casts.

	Many FreeType clients use C++.  However `g++ -Wold-style-cast` warns for
	macros with C-style casts even for system header files; this also affects
	directories included with `-isystem`.  While this could be seen as a problem
	with g++, the problem is more a philosophical one: Over the time, C and C++
	diverged more and more, and some features of C are no longer the 'right'
	solution in C++.

	* include/freetype/config/public-macros.h (FT_STATIC_CAST,
	FT_REINTERPRET_CAST): New macros.

	* include/freetype/freetype.h (FT_ENC_TAG, FT_LOAD_TARGET_,
	FT_LOAD_TARGET_MODE): Use `FT_STATIC_CAST`.
	Correctly handle negative 'signed char' input.
	* include/freetype/ftimage.h (FT_IMAGE_TAG): Ditto.
	* include/freetype/fttypes.h (FT_MAKE_TAG, FT_BOOL): Ditto.
	* include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): Use
	`FT_REINTERPRET_CAST`.

	* src/smooth/ftgrays.c (FT_STATIC_CAST)[STANDALONE_]: New macro.
	[!STANDALONE]: Include `FT_CONFIG_CONFIG_H`.

	Fixes #1116.

2021-11-16  Werner Lemberg  <wl@gnu.org>

	Fix clang++ warnings.

	* src/*: Initialize some variables to NULL.

2021-11-16  Werner Lemberg  <wl@gnu.org>

	[truetype] Updates for the forthcoming OpenType 1.9 standard (2/2).

	* src/truetype/ttgxvar.c (ft_var_load_item_variation_store):
	s/shortDeltaCount/wordDeltaCount/ (as done in the specification, too).
	Recognize new format and reject it for now.

2021-11-16  Werner Lemberg  <wl@gnu.org>

	[truetype] Updates for the forthcoming OpenType 1.9 standard (1/2).

	This is in preparation for implementing `DeltaSetIndexMap` format 1, which
	is used by `COLR` v1 tables, and which allows 32bit indices.

	  https://docs.microsoft.com/en-us/typography/opentype/otspec190/delta/otvarcommonformats_delta.html

	* src/truetype/ttgxvar.h (GX_DeltaSetIdxMapRec): Change type of `mapCount`
	to `FT_ULong`.

	* src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping): Add argument
	for passing the table size; update caller.
	Implement new format.

2021-11-14  Werner Lemberg  <wl@gnu.org>

	Fix clang warnings.

	* src/gxvalid/gxvcmmn.h (GXV_SET_ERR_IF_PARANOID): Use 'do' block.
	* src/gxvalid/gxvmod.c (GXV_TABLE_LOAD, GXV_TABLE_VALIDATE): Ditto.

	* src/smooth/ftgrays.c (gray_convert_glyph): Add cast.

	* src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Remove cast.
	* src/type1/t1load.c (read_binay_data): Use `FT_ULong` for `size` parameter.
	(parse_subrs, parse_charstrings, parse_dict): Ditto; also add some casts.

2021-11-13  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Avoid undefined shifts in `COLR` v1 paint parsing

	* src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Tighten shift
	behavior by using multiplication, mostly using macros from ftcalc.h.

	Fixes: https://bugs.chromium.org/p/chromium/issues/detail?id=1269168

2021-11-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Improve `DlgCopy` target.

	Fixes #1113.

	* builds/windows/vc2010/freetype.vcxproj: Run `DlgCopy` conditionally
	and decouple it from `Build`.

2021-11-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Explicitly define `FT_MSB` for Clang.

	* include/freetype/internal/ftcalc.h [__clang__] (FT_MSB): Updated.

2021-11-10  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/truetype/ttgxvar.c (ft_var_to_normalized): Edge optimization.

2021-11-10  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Additional `FT_MSB` macro definitions.

	Better macros for Windoes CE and ARM in general, based on !109
	from metarutaiga.

	* include/freetype/internal/ftcalc.h [_MSC_VER] (FT_MSB): Updated.

2021-11-09  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[build/windows] Remove logging from default debug configurations.

	DLG is rather costly for performance and should be used judiciously.
	This removes it from the default configurations but gives an example
	how to enable it using the `UserDefines` property.

	* builds/windows/vc2010/freetype.vcxproj: Hide FT_DEBUG_LOGGING.

2021-11-08  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/sfobjs.c (sfnt_open_font): Fix typo.

2021-11-08  Werner Lemberg  <wl@gnu.org>

	* src/gxvalid.*, src/otvalid.*: Fix `-Wformat` warnings.

2021-11-08  Werner Lemberg  <wl@gnu.org>

	[pshinter] Fix C++ compilation.

	* src/pshinter/pshalgo.c (psh_compute_dir): Fix type of `result`.
	(psh_hint_table_find_strong_points): Add cast.

2021-11-08  Werner Lemberg  <wl@gnu.org>

	[sfnt] Reduce footprint if WOFF and WOFF2 support is not needed.

	Based on a patch from metarutaiga (MR !106).  The gist of this commit is
	that it doesn't make sense to support WOFF without compression (which would
	be only possible in WOFF 1.0 anyway).

	* src/sfnt/sfobjs.c (sfnt_open_font): Guard WOFF code with
	`FT_CONFIG_OPTION_USE_ZLIB` block.
	Guard WOFF2 code with `FT_CONFIG_OPTION_USE_BROTLI` block.

	* src/sfnt/sfwoff.c, src/sfnt/sfwoff.h: Guard files with
	`FT_CONFIG_OPTION_USE_ZLIB` blocks, not parts of the code.

	* src/sfnt/sfwoff2.c, src/sfnt/sfwoff2.h, src/sfnt/woff2tags.c,
	src/sfnt/woff2tags.h: Guard files with `FT_CONFIG_OPTION_USE_BROTLI` blocks,
	not parts of the code.

	Fixes #1111.

2021-11-08  Werner Lemberg  <wl@gnu.org>

	[truetype] Make trickyness checks depend on TT_USE_BYTECODE_INTERPRETER.

	Based on a patch from metarutaiga (MR !106).

	* src/truetype/ttobjs.c (tt_skip_pdffont_random_tag,
	tt_check_trickyness_family, tt_synth_sfnt_checksum, tt_get_sfnt_checksum,
	tt_check_trickyness_sfnt_ids, tt_check_trickyness): Put functions into a
	`TT_USE_BYTECODE_INTERPRETER` block.
	(tt_face_init): Put trickyness checks into a `TT_USE_BYTECODE_INTERPRETER`
	block.

	Fixes #1111.

2021-11-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/sfnt/ttload.c (tt_face_load_gasp): Fix a type mismatch warning.

2021-11-07  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[dlg] Define DLG_STATIC explicitly.

	DLG_STATIC is intended to disable Windows DLL linking attributes.
	It does not hurt to define it explicitly when we wrap DLG code.
	This fixes tons of LNK4286 and C4273 warnings from MSVC if we
	forget to define DLG_STATIC as a compiler option.

	* builds/windows/vc2010/freetype.vcxproj: Remove DLG_STATIC option.
	* src/dlg/dlgwrap.c [FT_DEBUG_LOGGING]: Define DLG_STATIC.
	* include/freetype/internal/ftdebug.h [FT_DEBUG_LOGGING]: Ditto.

2021-11-07  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[dlg] Lighten up the inclusions.

	The DLG wrapper needs to know if FT_DEBUG_LOGGING is defined in
	`ftoption.h`. It does not need entire FreeType.

	* src/dlg/dlgwrap.c: Include FT_CONFIG_OPTIONS_H directly.

2021-11-07  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Avoid some memory zeroing in variations.

	* src/truetype/ttgxvar.c (ft_var_readpackeddeltas, ft_var_load_avar,
	ft_var_load_item_variation_store, ft_var_load_gvar): Use FT_QNEW_ARRAY
	if memory immediately initialized or discarded otherwise.

2021-11-05  Jany Belluz  <jany.belluz@daltonmaag.com>

	[truetype] Fix handling of packed deltas in Variation Fonts.

	* src/truetype/ttgxvar (ft_var_readpackeddeltas): Don't expect the number of
	bytes used to encode the deltas to be higher than the number of encoded
	values.  The specification allows a very compact encoding; for example, a
	list of 200 zeros can be encoded with just a couple of bytes.

	We now count the consumed bytes to make sure to not read more than expected.

2021-11-04  Jany Belluz  <jany.belluz@daltonmaag.com>

	[truetype] Fix CVAR handling of tuples for all points.

	* src/truetype/ttgxvar (tt_face_vary_cvt): Function
	`ft_var_readpackedpoints`, when it returns `ALL_POINTS`, also sets
	`point_count` to value 0.  However, the CVAR code was incorrectly expecting
	that `point_count` would be set to match the length of the CVT table.

2021-11-04  Jany Belluz  <jany.belluz@daltonmaag.com>

	* src/truetype/ttgxvar.c: Fix typos in macros that guard CVAR code.

2021-11-04  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* docs/INSTALL: Mention Meson and MSBuild more prominently.

2021-11-03  Gabor Kertesz  <gabor.kertesz@linaro.org>

	[libpng] Update Meson wrap for win-arm64

	1.6.37-5 released patches for win-arm64 to successfully build
	libpng with Meson:
	https://github.com/mesonbuild/wrapdb/pull/205
	https://github.com/mesonbuild/wrapdb/pull/216

	Updated by the following command:
	meson wrap update libpng

	Tested on win-arm64 and x64.

2021-11-03  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Clarify `COLR` v1 FT_Paint* format representations

	* include/freetype/ftcolor.h (FT_PaintLinearGradient,
	FT_PaintRadialGradient, FT_PaintSweepGradient, FT_PaintTransform,
	FT_PaintTranslate, FT_PaintScale, FT_PaintRotate, FT_PaintSkew): Clarify
	16.16 fixed point representation of struct fields.
	* src/sfnt/ttcolr.c (read_paint): Shift coordinates for
	FT_PaintLinearGradient, FT_PaintRadialGradient, FT_PaintSweepGradient
	accordingly.

	Fixes: https://gitlab.freedesktop.org/freetype/freetype/-/issues/1110

2021-11-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Let MSBuild handle DLG copy.

	* builds/windows/vc2010/freetype.vcxproj: Specify DlgCopy target.
	* builds/windows/vc2010/script.bat: Deleted.

2021-10-29  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/truetype/ttgload.c (load_truetype_glyph): Fix MSVC warning C4312.

2021-10-29  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Separate MSVC linker and librarian.

	MSVC uses LIB for static and LINK for dynamic libraries. They are
	related but the former has much smaller set of options.

	* builds/windows/vc2010/freetype.vcxproj: Updated.

2021-10-29  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Revise MSVC linking optimizations.

	* builds/windows/vc2010/freetype.vcxproj: Optimize DLL linking only.
	* builds/windows/visualc/freetype.dsp: Ditto.
	* builds/windows/visualc/freetype.vcproj: Ditto.

2021-10-28  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[woff] Optimize table tagging.

	* include/freetype/internal/wofftypes.h (WOFF_TableRec): Use
	32-bit tag.
	* src/sfnt/sfwoff.c (woff_open_font): Use 32-bit tag.

2021-10-28  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[woff2] Optimize table tagging.

	Fixes #1107.

	* include/freetype/internal/wofftypes.h (WOFF2_TableRec): Use
	32-bit tag.
	* src/sfnt/sfwoff2.c (compare_tags, find_table, woff2_open_font):
	Use 32-bit tag.
	* src/sfnt/woff2tags.[ch] (woff2_known_tags): Use static storage and
	return 32-bit tag.

2021-10-26  Werner Lemberg  <wl@gnu.org>

	Formatting.

2021-10-26  Ben Wagner  <bungeman@chromium.org>

	[mm] Tolerate missing Blend dictionary entries

	In a Multiple Master font, the Blend dictionary must contain valid
	Private, FontInfo, and FontBBox. The current code will error if any of
	these are present and invalid, but will not error and will provide
	uninitialized data if the Blend dictionary exists but does not contain
	one of these entries. This change reverts to the older behavior of
	treating any missing entries as containing all zero data and not
	returning an error.

	In the future it may be best to keep track of when these are actually
	initialized and error if they are not.

	* src/type1/t1load.c (t1_allocate_blend): Zero initiailize.

2021-10-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Add MSVC linker optimazations.

	We continue to build static libraries with statically linked C run-
	time and add options to optimize references.

	* builds/windows/vc2010/freetype.vcxproj: Sort entries, add options.

2021-10-23  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* builds/windows/vc2010/freetype.vcxproj: Use MachineARM64.

2021-10-22  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Prioritize x64.

	* builds/windows/vc2010/freetype.sln: Sort entries.

2021-10-22  Gabor Kertesz  <gabor.kertesz@linaro.org>

	[builds/windows] Add ARM64 platform.

	* builds/windows/vc2010/freetype.sln: Updated
	* builds/windows/vc2010/freetype.vcxproj: Updated.
	* builds/windows/vc2010/freetype.vcxproj.filters: Minor fix.

2021-10-21  Ben Wagner  <bungeman@chromium.org>

	[mm] Delay setting blend weight and design position.

	Previously the `blend->weight_vector`, `blend->default_weight_vector`,
	and `blend->design_pos` were set early to allocated but uninitialized
	memory under the assumption that the memory would eventually be
	initialized. However, it is possible that some of the required
	keywords may not actually be present, leaving the memory uninitialized.
	This is different from a present but invalid table, which would produce
	an error.

	Reported as
	  https://bugs.chromium.org/p/chromium/issues/detail?id=1261762

	* src/type1/t1load.c (t1_allocate_blend): Remove early allocation and
	initialization.
	(parse_blend_design_positions, parse_weight_vector): Parse into local
	and assign to blend if valid.
	(T1_Open_Face): Check that if a blend exists that it has the weight
	vector and design positions.

2021-10-21  Ben Wagner  <bungeman@chromium.org>

	[cff] Commit vstore data and regions on allocation.

	The vstore->regionCount and vstore->dataCount were read directly
	from the data. However, vstore->varRegionList and vstore->varData
	would still contain uninitialized entries with uninitialized
	pointers in the event of an error, leading to issues when attempting
	to clean up.

	Reportd as
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40104

	* src/cff/cffload.c (cff_vstore_load): Read the region and data counts
	into locals and update the vstore counts immediately after each entry
	becomes free-able.

2021-10-20  Ben Wagner  <bungeman@chromium.org>

	[sfnt] Delay setting gasp ranges and count until computed.

	Previously, the gasp.numRanges was set and gasp.gaspRanges was
	allocated and assigned before a possible early exit if the frame could
	not be entered. It is also possible that the gaspRanges allocation
	could fail but the numRanges still be set to non-zero. In such cases
	an error would be returned, but the face would have a gasp in an
	inconsistent state which may still be accessed.

	Reported as
	  https://bugs.chromium.org/p/chromium/issues/detail?id=1261450

	* src/sfnt/ttload.c (tt_face_load_gasp): Delay setting gasp.numRanges
	and gasp.gaspRanges until after the ranges are initialized.

2021-10-20  Ben Wagner  <bungeman@chromium.org>

	[sfnt] Delay setting names and langTags until computed.

	Previously, the table->names and table->langTags fields were created
	pointing to uninitialized memory and an early exit could happen if the
	frame could not be entered. The caller would then be unable to properly
	dispose of the memory as the string fields had not been initialized.

	Reported as
	  https://bugs.chromium.org/p/chromium/issues/detail?id=1261343

	* src/sfnt/ttload.c (tt_face_load_name): delay setting table->langTags
	and table->names until after the memory they will point to is fully
	initialized.

2021-10-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* tests/issue-1063/main.c: s/PATH_MAX/FILENAME_MAX/.

	Closes !97 for Windows by using a standard macro.

2021-10-19  Werner Lemberg  <wl@gnu.org>

	[bdf, cid, pfr, winfonts] Improve rejection of other font formats.

	This is mainly for better diagnostics of malformed fonts.

	* src/bdf/bdflib.c (_bfd_readstream): Stop font format testing if the first
	input line is too long or doesn't end with `\r` or `\n`.

	* src/cid/cidparse.c (cid_parser_new): Don't handle too short input as an
	error but as an unknown format.

	* src/pfr/pfrobjs.c (pfr_face_init): Ditto.

	* src/winfonts/winfnt.c (fnt_font_load, fnt_face_get_dll_font): Ditto.

2021-10-19  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pcf] Zero out the allocated properties.

	Fallout reported as
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40033

	* src/pcf/pcfread.c (pcf_get_properties): Use FT_NEW_ARRAY and zero
	out `properties` in case of failure.

2021-10-18  Werner Lemberg  <wl@gnu.org>

	configure: Use string comparison for directory inodes.

	Inode values might be larger than integers supported by the shell.

	Fixes #1105.

2021-10-17  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/sfnt/ttload.c (tt_face_load_name): NULL-initialize langTag.

	Another attempt to fix fallout reported as
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40024

2021-10-17  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[bdf] Fix up user properties.

	Fallout reported as
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40027

	* src/bdf/bdflib.c (_bdf_add_property): Cosmetic NULL.
	(bdf_create_property): Limit allocations to customary signed
	FT_Long and NULL-initialize unused storage.
	(bdf_free_font): Do not free unused storage.

2021-10-17  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/sfnt/ttload.c (tt_face_load_name): Accounting fix.

	Fallout reported as
	  https://crbug.com/40024

2021-10-16  Ben Wagner  <bungeman@chromium.org>

	Fix typos in memory macros.

	FT_QNEW_ARRAY and FT_QRENEW_ARRAY were using the non-Q
	FT_MEM_NEW_ARRAY and FT_MEM_RENEW_ARRAY. Change these to use the Q
	versions. Also fix the one issue discovered in tt_face_load_name
	where table->names is created with FT_QNEW_ARRAY but the extra
	string member is not initialized to NULL.

	* include/freetype/internal/ftmemory.h (FT_Q(RE)NEW_ARRAY):
	Use FT_MEM_Q(RE)NEW_ARRAY as needed.

	* src/sfnt/ttload.c (tt_face_load_name): Initialize `entry->string`.

2021-10-15  Ben Wagner  <bungeman@chromium.org>

	[truetype] Reload context after re-executing `prep`.

	When a different hinting mode from the current is selected, the `prep` table
	must be re-executed with the new mode.  After this happens the context must
	be re-loaded in preparation for the glyph program to be run.

	Fixes #1104.

	* truetype/ttgload.c (tt_loader_init): Add call to `TT_Load_Context`.

2021-10-15  Werner Lemberg  <wl@gnu.org>

	[truetype] Minor documentation improvements.

2021-10-14  Anurag Thakur  <anuthadev@gmail.com>

	Add clang build to linux CI

2021-10-12  Anurag Thakur  <anuthadev@gmail.com>

	CI: Add macOS CI, including a clang build

2021-10-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cid/cidload.c (parse_fd_array): Protect against trancation.

2021-10-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[type1] Revert to signed size for binary data.

	Recently introduced and reported as
	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39838

	* src/type1/t1load.c (read_binary_data): Reject negative size.
	(parse_subrs, parse_charstrings): Use customary signed size.

2021-10-11  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[psaux] Signedness revisions.

	Unsigned indexes are easier to check.

	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Updated.
	* src/psaux/psintrp.c (cf2_interpT2CharString): Ditto.
	* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Ditto.
	* src/type1/t1load.c (read_binary_data): Ditto.

2021-10-11  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cid] Signedness revisions.

	Unsigned checks are simpler.

	* include/freetype/t1tables.h (CID_FaceInfoRec): Change to unsignd
	`num_dicts`.
	* src/cid/cidparse.h (CID_Parser): Change to unsigned `num_dict`.

	* src/cid/cidgload.c (cid_load_glyph): Updated.
	* src/cid/cidload.c (cid_load_keyword, parse_fd_array,
	parse_expansion_factor, parse_font_name, cid_read_subrs,
	cid_face_open): Updated.
	* src/cid/cidobjs.c (cid_face_done): Updated.
	* src/cid/cidparse.c (cid_parser_new): Updated.

2021-10-09  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cid/cidload.c (cid_face_open): Streamline CIDCount check.

2021-10-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cid/cidload.c (cid_face_open): Streamline SubrCount check.

2021-10-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cid/cidgload.c (cid_load_glyph): Fortify incremental loading.

2021-10-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Signedness revisions.

	This eliminates explicit casting by switching to unsigned fields.
	The revisions mostly impact the handling of CID fonts.

	* include/freetype/fttypes.h (FT_Data): Change to unsigned `length`.
	* include/freetype/t1tables.h (CID_FaceDictRec): Ditto for `sd_bytes`.
	(CID_FaceInfoRec): Ditto for `gd_bytes` and `gd_bytes`.
	* include/freetype/internal/tttypes.h (TT_LoaderRec): Ditto for
	`byte_len`.

	* src/cid/cidgload.c (cid_load_glyph): Updated.
	* src/cid/cidload.h (cid_get_offset): Update argument.
	* src/cid/cidload.c (cid_get_offset, cid_read_subrs, cid_face_open):
	Updated.
	* src/cff/cffgload.c (cff_get_glyph_data, cff_free_glyph_data):
	Updated.
	* src/psaux/psft.c (cf2_getT1SeacComponent): Updated.
	* src/truetype/ttgload.c (TT_Process_Composite_Glyph,
	load_truetype_glyph): Updated.

2021-10-07  Jan Alexander Steffens (heftig)  <jan.steffens@gmail.com>

	meson.build (gen_docs): Use `current_source_dir` instead of `source_root`.

	These two are not equal when FreeType is used as a subproject, such as in
	`freetype-demos`.  In that case, `source_root` points at the root project,
	causing the docs build to fail.

2021-10-05  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/smooth/ftgrays.c (FT_DIV_MOD): Limit the ARM workaround.

2021-10-05  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/unix, builds/vms] Standardize `mmap` failure.

	* builds/unix/ftsystem.c (FT_Stream_Open): Check for MAP_FAILED.
	* builds/vms/ftsystem.c (FT_Stream_Open): Ditto.

	This should cover https://savannah.nongnu.org/patch/?5909 as well.

2021-10-05  Hugh McMaster  <hugh.mcmaster@outlook.com>

	autogen.sh: Only copy submodules if building from a git branch.

	`autogen.sh` fails if building from a standard source tarball.  Firstly, git
	expects to be called in a git repository, then `copy_submodule_files`
	blindly attempts to copy files.

	Debian, Ubuntu, Linux Mint, and other derivatives all run `autogen.sh`
	before compiling to regenerate build files.

	This patch ensures that various git commands are only called and 'dlg' files
	are only copied if `autogen.sh` is called from a git repository.

2021-10-05  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* include/freetype/internal/ftgloadr.h: Add missing header.

	Noticed by Jouk Jansen.

2021-10-05  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Additional clean-ups.

	* src/pshinter/pshalgo.h (psh_hint_table_find_strong_points): Streamline code.
	* src/pshinter/pshalgo.h (PSH_Glyph): Remove unused fields.

2021-10-04  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] More convenient direction definition.

	It is easier to check directions using flags than integer values.

	* src/pshinter/pshalgo.h (PSH_Dir): Redefine directions.
	(PSH_PointRec): Use them as an enum type.

	* src/pshinter/pshalgo.c (psh_compute_dir): Modify return type.
	(psh_glyph_init, psh_hint_table_find_strong_points,
	psh_glyph_find_blue_points): Update users.

2021-10-04  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[pshinter] Remove unnecessary check.

	* src/pshinter/pshalgo.c (psh_hint_table_find_strong_points): Do not
	check if direction is defined before checking how.

2021-10-02  AnuthaDev  <anuthadev@gmail.com>

	CI: Hardcode meson version to fix build failure on windows

2021-10-01  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Additional `FT_MSB` macro definitions.

	* include/freetype/internal/ftcalc.h [__DECC,_CRAYC]: Use builtins
	and intrinsics.

2021-10-01  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/autofit/afhints.c (af_glyph_hints_reload): Decrease casting.

2021-09-30  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/tools/apinames.c: Facilitate OpenVMS linker options.

2021-09-29  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/winfonts/winfnt.c (FNT_Face_Init): Correct reallocation.

2021-09-25  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/unix] Do not use autoconf SIZEOF.

	* builds/unix/ftconfig.h.in [FT_USE_AUTOCONF_SIZEOF_TYPES]: Removed.
	* builds/unix/configure.raw: Remove AC_CHECK_SIZEOF and update.

	After this commit, autoconf builds will fully rely on <limits.h>
	rather than falling back on it if AC_CHECK_SIZEOF failed for some
	reason.  There is a risk that misconfigured cross-compilation might
	have wrong headers.  Note that Meson and CMake builds always relied on
	<limits.h> for sizes and availability of integer types.

2021-09-25  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Propagate sign when reading OFF3.

	Signed 24-bit values are extremely rare.  FreeType only reads them in
	PFR fonts with bitmap strikes conditionally. They have not been seen
	in the known fonts.  That is why this bug could never be discovered.
	`FT_FRAME_OFF3` propagates sign correctly.

	* include/freetype/internal/ftstream.h (FT_PEEK_OFF3, FT_PEEK_OFF3_LE):
	Propagate sign into 32-bit value.
	(FT_GET_OFF3, FT_READ_OFF3): Needed fixing but removed as unused.

2021-09-25  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[bdf] Simplify comment collection or lack thereof.

	BDF comments are neither actually collected nor retrieved. There is
	no need to be fancy with delimiters.

	* src/bdf/bdflib.c (_add_bdf_comment): Delimit comments with zeros...
	(bdf_load_font): ...and do not null-terminate comments additionally.
	(_bdf_parse_glyphs): Check if comments are kept, which they are not.
	(_bdf_parse_start): Minor clean up.

2021-09-24  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Use NULL for pointers only.

	* src/bdf/bdflib.c (*): Code changes.
	* include/freetype/freetype.h: Comments only.
	* src/cff/cffload.c, src/cff/cffobjs.c: Ditto.
	* src/winfonts/winfnt.c: Ditto.

2021-09-23  Werner Lemberg  <wl@gnu.org>

	Minor documentation fixes and improvements.

2021-09-23  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Reference `fopen` in the docs.

2021-09-23  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[bdf, pcf] Minor optimization.

	* src/pcf/pcfread.c (pcf_load_font): Do not call `FT_MulDiv` for a
	small job.
	* src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto.
	* src/bdf/bdflib.c (_bdf_parse_glyphs): Fix a comment.

2021-09-22  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[base] Initialize stream memory earlier.

	With Windows memory management tracking heap, it is important to use
	it during the stream opening fallback. In Unix, the argument is
	unused, but it is better to set it correctly.

	* src/base/ftobjs.c (FT_Stream_New): Set memory before calling
	`FT_Stream_Open`.
	* builds/windows/ftsystem.c, builds/unix/ftsystem.c (FT_Stream_Open,
	ft_close_stream_by_free): Call `ft_alloc` and `ft_free` with proper
	memory argumment.

2021-09-22  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Revert back to `CreateFileA` only.

	Calling `CreateFileW` without making sure that the patname is really
	`wchar_t` is a bad idea and can lead to unpredictable overreads. For
	Windows CE, we impelemnt the missing API.

	Fixes #1098 and !76 again.

	* builds/windows/ftsystem.c (FT_Stream_Open): Call `CreateFileA`.
	[_WIN32_WCE] (CreateFileA, FileSizeEx): Implement missing interfaces.

2021-09-21  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/bdf/bdflib.c (_bdf_parse_{start,glyphs}): Use appropriate scanner.

2021-09-21  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Minor.

2021-09-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cff/cffdrivr.c (cff_ps_get_font_{info,extra}): Use FT_QNEW.

2021-09-18  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Minor clean-ups.

	* src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Remove parantheses.
	* src/cache/ftccache.c (FTC_Cache_Lookup): Ditto.
	(FTC_Cache_RemoveFaceID): Remove unnecessary variable.

2021-09-17  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Try both wide and narrow `CreateFile`

	Windows handles wchar_t* UTF-16 and char* ANSI (presently UTF-8)
	filenames using alternative -A and -W API. We'll try them both
	when opening a file. This means that you should not worry about
	about conversions.

	Fixes #1098 and !76.

	* builds/windows/ftsystem.c (FT_Stream_Open): Call alternative
	`CreateFile` in the case of failure.

2021-09-17  Edwin Steiner  <edwin.steiner@gmail.com>

	[cff] Explicitly set StandardEncoding or ExpertEncoding offsets.

	Fixes #1097.

	* src/cff/cffload.c (cff_encoding_load): Set special offset values.

2021-09-16  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Miscellaneous clean-ups.

	* src/cache/ftccache.c (ftc_get_top_node_for_hash, FTC_Cache_Clear):
	Remove barely used variables.
	(ftc_cache_add): Adjust casting.
	* src/cache/ftccmap.c (FTC_CMapCache_Lookup): Remove casting.
	* src/cache/ftcsbits.c (ftc_snode_load): Remove casting.

2021-09-16  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cff/cffload.c (cff_fd_select_get): Remove casting.

2021-09-16  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/pcf/pcfread.c (pcf_read_TOC): Remove casting.

2021-09-15  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Minor type adjustments.

	* src/cff/cffobjs.c (cff_face_init): Reduce casting.
	* src/truetype/ttobjs.c (tt_size_ready_bytecode): Ditto.
	* src/type1/t1load.c (T1_Set_MM_Design): Ditto.

2021-09-15  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Replace boolean allocation macros with MEM ones.

	* src/base/ftbitmap.c (FT_Bitmap_Copy): Use MEM-macro.
	* src/base/ftobjs.c (ft_glyphslot_alloc_bitmap): Ditto.
	* src/bzip2/ftbzip2.c (ft_bzip2_alloc): Ditto.
	* src/cache/ftccache.c (ftc_cache_init): Ditto
	* src/gzip/ftgzip.c (ft_gzip_alloc): Ditto.
	* src/psnames/psmodule.c (ps_unicodes_init): Ditto.
	* src/sfnt/sfobjs.c (sfnt_load_face): Ditto.
	* src/sfnt/ttload.c (tt_face_load_name): Ditto.

2021-09-15  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Revert to some zeroing.

	* src/cache/ftccache.c (ftc_cache_init, ftc_cache_resize): Zero
	`buckets` again to fix some crashes.

2021-09-14  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/pshinter/pshrec.c (ps_mask_table_merge_all): Tweak loops.

	Fixes fallout from 731d0b685685 reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38685

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cff, pshinter] Clean up unsigned counters.

	Loops with unsigned decrement can be reliably stopped when the counter
	wraps around after reaching zero.

	* src/cff/cffload.c (cff_charset_compute_cids): Use unsigned counter.
	* src/pshinter/pshalgo.c (psh_hint_table_activate_mask): Ditto.
	* src/pshinter/pshrec.c (ps_mask_table_merge): Ditto.

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[bdf, psnames, sfnt] Avoid some memory zeroing.

	* src/bdf/bdfdrivr.c (BDF_Face_Init): Use Q-macro.
	* src/sfnt/sfobjs.c (sfnt_load_face): Ditto.
	* src/psnames/psmodule.c (src/psnames/psmodule.c): Remove zero.

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/base/ftobjs.c (FT_CMap_New): Revert to zeroing.

	Fixes fallout from c1fa7aa2bc96, reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38641

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Clean up `exec` initialization.

	* src/truetype/ttinterp.c (Init_Context): Absorbed into...
	(TT_New_Context): ... this function.

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Avoid some memory zeroing.

	* src/truetype/ttgload.c (load_truetype_glyph): Use Q-macro.
	* src/truetype/ttinterp.c (Update_Max): Ditto.
	* src/truetype/ttpload.c (src/truetype/ttpload.c): Ditto.

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[base] Avoid some memory zeroing.

	* src/base/ftobjs.c (FT_New_Size, FT_CMap_New, FT_CMap_Done,
	ft_open_face_internal, ft_open_face_internal): Use Q-macros.

2021-09-13  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache, psaux] Remove zeros.

	* src/cache/ftcmru.c (FTC_MruList_New): Remove initialization.
	* src/psaux/psstack.c (cf2_stack_init): Ditto.

2021-09-12  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[cache] Avoid some memory zeroing.

	* src/cache/ftcmru.c (FTC_MruList_New): Use Q-macro.
	* src/cache/ftcmanag.c (FTC_Manager_RegisterCache): Ditto.
	* src/cache/ftccache.c (ftc_cache_init, ftc_cache_resize): Ditto.

2021-09-11  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cache/ftcmanag.c (FTC_Manager_New): Add missing zero.

	Fixes fall out from a7b199d081e7.

2021-09-10  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Tweak `hdmx` checking.

	Fixes #1096.

	* src/truetype/ttpload.c (tt_face_load_hdmx): Account for padding.

2021-09-10  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[truetype] Tweak `loca` clamping.

	Fixes #1095.

	* src/truetype/ttpload.c (tt_face_load_loca): Fix up clamping.
	* include/freetype/internal/tttypes.h (TT_Face): Correct docs.

2021-09-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Fortify memory debugging (cont'd).

	* src/base/ftdbgmem.c (FT_DumpMemory): Check for active debugger.
	(ft_mem_table_destroy): Move `FT_DumpMemory` call from here...
	(ft_mem_debug_done): ... to here.

2021-09-08  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Fortify memory debugging.

	These changes are neccessary to properly recover `memory->user` that
	holds the Windows heap handle now.

	* src/base/ftdbgmem.c (ft_mem_debug_init): Handle all table allocations,
	initializations, and sizing instead of...
	(ft_mem_table_new): ... this function removed.
	(ft_mem_debug_done): Better check for the active debugger and free the
	debugger table here instead of...
	(ft_mem_table_destroy): ... here.

2021-09-08  Werner Lemberg  <wl@gnu.org>

	src/tools/ftrandom/ftrandom.c (_XOPEN_SOURCE): Set to 600.

	This allows C99 compilation on Solaris.

	Problem reported by Mojca Miklavec.

2021-09-07  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Use native memory allocation API.

	* builds/windows/ftsystem.c (ft_alloc, ft_realloc, ft_free):
	Wrap HeapAlloc, HeapReAlloc, and HeapFree.
	(FT_New_Memory): Set the heap handle.

2021-09-07  Werner Lemberg  <wl@gnu.org>

	[dlg] Synchronize with upstream.

	* src/dlg/dlgwrap.c (_XOPEN_SOURCE): Set to 600.

	Fixes #1093.

2021-09-04  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Cosmetic zeros.

2021-09-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/bdf/bdflib.c (_bdf_parse_start): Keep parser memory.

2021-09-03  Werner Lemberg  <wl@gnu.org>

	autogen.sh: Make it work with old Solaris 10 shell.

2021-09-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[smooth, raster, sdf] Clean up initialization calls.

	* src/raster/ftraster.c (ft_black_init): Removed.
	(ft_black_new): Clean up.
	* src/sdf/ftbsdf.c (bsdf_raster_new): Ditto.
	* src/sdf/ftsdf.c (sdf_raster_new): Ditto.
	* src/smooth/ftgrays.c (gray_raster_new): Ditto.

2021-09-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/cache/ftcmanag.c (FTC_Manager_New): Avoid some zeroing.

2021-09-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/bdf/bdflib.c (bdf_load_font): Remove memory shuffling.

2021-09-03  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Cosmetic zeros.

2021-09-02  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[base] Clean up stream reading.

	* src/base/ftstream.c (FT_Stream_ReadUShort, FT_Stream_ReadUOffset,
	FT_Stream_ReadULong and their LE variants): Remove unnecessary
	initialization and slightly refactor.
	(FT_Stream_GetByte, FT_Stream_ReadByte): Rename to return unsigned
	value and align with sister functions.

	* include/freetype/internal/ftstream.h (FT_Stream_GetByte,
	FT_Stream_ReadByte): Update prototypes and caller macros.

2021-09-02  Alexei Podtelezhnikov  <apodtele@gmail.com>

	s/0/NULL/ where appropriate.

2021-08-30  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* builds/windows/ftsystem.c (FT_Stream_Open): Fix double-close.

2021-08-30  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[smooth] Reduce shift in multiply-shift optimization.

	* src/smooth/ftgrays.c (FT_UDIVPREP, FT_UDIV): Reduce shift.

	Smaller shifts that keep the division operands of FT_UDIVPREP within
	32 bits result in slightly faster divisions, which is noticeable in
	the overall performance.  The loss of precision is tolerable until the
	divisors (the components dx and dy) approach 32 - PIXEL_BITS. With
	PIXEL_BITS = 8, this corresponds to 65,000 pixels or the bitmap size
	that we refuse to render anyway.

	Using `ftbench -p -s60 -t5 -bc timesi.ttf`,

	Before: 8.52 us/op
	After:  8.32 us/op

2021-08-28  Werner Lemberg  <wl@gnu.org>

	[truetype] Fix compilation if !TT_CONFIG_OPTION_BYTECODE_INTERPRETER.

	* src/truetype/ttgxvar.c (tt_cvt_ready_iterator): Compile function
	conditionally.
	(tt_face_vary_cvt) [!TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Add code.

	Fixes #1091.

2021-08-27  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Revise SSE2 settings.

	* builds/windows/vc2010/freetype.vcxproj [x64]: Remove explicit SSE2.
	* builds/windows/visualc/freetype.vcproj [Win32]: Add explicit SSE2.

2021-08-27  Ben Wagner  <bungeman@chromium.org>

	[smooth] Detect SSE2 with MSVC for x86

	MSVC does not set `__SSE2__`. Instead one must check whether `_M_IX86_FP` is
	defined and greater than or equal to 2.

	* src/smooth/ftgrays.c (FT_SSE2): New macro.
	Use it where appropriate.

2021-08-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Expand comment (cont'd).

2021-08-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Expand comment.

2021-08-24  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* src/smooth/ftgrays.c (gray_render_conic): Refactor redundancy.

2021-08-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] Fix for the family name shorter than 8 characters.

	* src/truetype/ttobjs.c (tt_skip_pdffont_random_tag):
	If the family name to be checked is shorter than 8 characters,
	do not check its syntax.

2021-08-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] Simplify `trick_names'.

	* src/truetype/ttobjs.c (tt_check_trickyness_family): For the case
	that the beginning part of a long tricky family name is already
	registered as another tricky family name, no need to double-check
	the longer one.  Such long tricky family names are removed from
	the `trick_names'.

2021-08-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] Add 2 tricky font names.

	Additional fix for the issue #1087.

	* src/truetype/ttobjs.c (tt_check_trickyness_family): Add 2 tricky
	font names reported in #1087.

2021-08-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] New function to skip the randomization tag.

	* src/truetype/ttobjs.c (tt_skip_pdffont_random_tag):
	New function to skip the randomization tag in the names of the
	fonts embedded in a PDF.  It is used by tt_check_trickyness_family(),
	to keep from mistaking "DLC" in the randomization tag as a
	tricky font name. See discussion in:

	https://lists.nongnu.org/archive/html/freetype-devel/2021-02/msg00002.html

	For technical detail about the randomization tag, please find
	PDF Reference 5.5.3 "Font Subsets".  Thanks to Justyna Wawrzynska
	for pointing out the issue caused by the randomization tag.

2021-08-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>

	[truetype] Add checksums for 2 tricky fonts.

	Thanks to Ting717 for providing sample PDF. Fixes #1087.

	* src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): Add
	checksums for 2 tricky fonts `DFHei-Bd-WIN-HK-BF' and
	`DFMing-Md-WIN-HK-BF'.

2021-08-23  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Whitespace formatting.

2021-08-22  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Decorate const arguments.

	* src/base/ftglyph.c (FT_Glyph_Transform, FT_Glyph_To_Bitmap): Do it.
	* include/freetype/ftglyph.h (FT_Glyph_Transform, FT_Glyph_To_Bitmap):
	Do it.

2021-08-21  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[smooth] Clean up the null cell usage.

	Put the null cell at the end of the pool and store it explicitly so that
	we can use it as both the limit and the dumpster.

	* src/smooth/ftgrays.c (gray_TWorker): Store the last `cell_null` and
	remove unnecesary fields.
	(NULL_CELL_PTR, CELL_IS_NULL): Remove in favor of explicit `cell_null`.
	(gray_dump_cells, gray_set_cell, gray_sweep{,_direct}): Update callers.
	(gray_convert_glyph_inner): Trace remaining cells (oh well).
	(gray_convert_glyph): Set up `cell_null` and slightly improve the pool
	management.

2021-08-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[base] Restore quiet no-op rendering of bitmap glyphs.

	Fixes #1076.

	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Discard an error when
	rendering a bitmap glyph.

2021-08-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[smooth] Fortify 64-bit algorithm.

	* src/smooth/ftgrays.c (FT_UDIVPREP, FT_UDIV): s/long/FT_Int64/ and
	s/unsigned long/FT_UInt64/.
	(gray_render_line): Adjust a critical variable type.

2021-08-20  Carlo Bramini  <carlo.bramix@libero.it>

	* builds/windows/ftsystem.c (FT_Stream_Open): Support legacy Windows.

2021-08-20  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Determine `long long` availability based on its size.

	MSVC, for example, used `long long` even without full C99 support.

	* include/freetype/config/ftstdlib.h: Check if `long long` limits are
	defined in <limits.h>.
	* include/freetype/config/integer-types.h: Check `long long` size and
	use it to typedef FT_Int64.

2021-08-19  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Fix format expectation for `COLR` v1 ClipList

	* src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Change ClipList
	format expectation to 1 instead of 0 to make it compliant with the
	latest spec.

2021-08-19  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Readily use `long long` as a 64-bit type in C99 mode.

	* include/freetype/config/integer-types.h (FT_INT64):
	FT_CONFIG_OPTION_FORCE_INT64 is no longer required to use `long long`.

2021-08-19  Alexei Podtelezhnikov  <apodtele@gmail.com>

	Use FT_INT64 instead of FT_LONG64.

	* include/freetype/config/integer-types.h: Remove synonymous FT_LONG64.
	* include/freetype/internal/ftcalc.h: s/FT_LONG64/FT_INT64/.
	* src/base/ftcalc.c: Ditto.
	* src/base/fttrigon.c: Ditto.
	* src/smooth/ftgrays.c: Ditto.

2021-08-18  Alexei Podtelezhnikov  <apodtele@gmail.com>

	[builds/windows] Do not set CharacterSet for VC++.

	* builds/windows/vc2010/freetype.vcxproj: s/Unicode/NotSet/.
	* builds/windows/visualc/freetype.vcproj: s/"1"/"0"/.

2021-08-18  Werner Lemberg  <wl@gnu.org>

	* src/sdf/ftsdf.c (get_control_box): Fix compiler warning.

2021-08-18  Werner Lemberg  <wl@gnu.org>

	[base] Fix ppem size overflow.

	Fixes #1086.

	* src/base/ftobjs.c (FT_Request_Metrics): Add return value.
	Check whether ppem values fit into unsigned short values.
	(FT_Request_Size): Updated.

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

	* src/cff/cffobjs.c (cff_size_request), src/cid/cidobjs.c
	(cid_size_request), src/truetype/ttdriver.c (tt_size_request),
	src/type1/t1objs.c (T1_Size_Request): Updated.

2021-08-18  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* builds/windows/ftsystem.c (FT_Stream_Open): Cast to remove warning.

2021-08-18  Alexei Podtelezhnikov  <apodtele@gmail.com>

	* builds/windows/ftsystem.c (FT_Stream_Open): Support UNICODE compilation.

2021-08-09  Werner Lemberg  <wl@gnu.org>

	* src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Minor fix.

2021-08-09  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Add missing blend mode 'plus' to 'COLR' v1.

	* include/freetype/ftcolor.h (FT_Composite_Mode): Add missing blend mode
	'plus' after it was added to the spec.

2021-08-08  Werner Lemberg  <wl@gnu.org>

	include/freetype/freetype.h (FT_Encoding): Improve documentation.

	Based on a suggestion by Antony Lee <anntzer.lee@gmail.com>.

2021-08-07  Werner Lemberg  <wl@gnu.org>

	[smooth] Avoid integer overflow.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36243

	* src/smooth/ftgrays.c(ADD_LONG, SUB_LONG, MUL_LONG, NEG_LONG)
	[STANDALONE_]: Removed, unused.
	(ADD_INT) [STANDALONE_]: New macro.
	(FT_INTEGRATE): Use ADD_INT.

2021-08-07  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Add API for retrieving a 'COLR' v1 'ClipBox' table.

	The optional 'COLR' v1 glyph-specific clip box helps upstream graphics
	libraries allocate a sufficiently large bitmap for a glyph without having to
	traverse the glyph graph for that.  See

	  https://github.com/googlefonts/colr-gradients-spec/issues/251

	for background on the introduction of this specification change.

	* include/freetype/ftcolor.h (FT_ClipBox): New structure.
	(FT_Get_Color_Glyph_ClipBox): New function declaration.

	* include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_ClipBox_Func):
	New function type.
	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Use it.

	* src/base/ftobjs.c (FT_Get_Color_Glyph_ClipBox): New function to link API
	with SFNT implementation.

	* src/sfnt/sfdriver.c (sfnt_interface): Updated.
	* src/sfnt/ttcolr.c (Colr): New field `clip_list`.
	(tt_face_load_colr): Parse global clip list offset.
	(tt_face_get_color_glyph_clipbox): New function to find the clip box for a
	glyph id from the clip list array.
	* src/sfnt/ttcolr.h: Updated.

2021-08-06  Werner Lemberg  <wl@gnu.org>

	[smooth] Fix left shifts of negative numbers.

	Reported as

	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36241

	* src/smooth/ftgrays.c (LEFT_SHIFT): New macro.
	(gray_render_conic) [BEZIER_USE_DDA]: Use it.

2021-08-02  Werner Lemberg  <wl@gnu.org>

	* meson.build: Fix zlib support.

	This commit synchronizes zlib support with both autotools and cmake: If no
	external zlib is found (or intentionally disabled on the command line), use
	the internal zlib by undefining `FT_CONFIG_OPTION_SYSTEM_ZLIB` without
	modifying `FT_CONFIG_OPTION_USE_ZLIB`.

	Also improve summary output.

	Problem reported by Moazin.

2021-08-02  Anuj Verma  <anujv@iitbhilai.ac.in>

	[sdf] Fix out-of-range-access.

	* src/sdf/ftbsdf.c (first_pass, second_pass): Fix range during forward pass.
	Otherwise the index goes out of range for the last column.

	Fixes issue #1077.

2021-08-02  Anuj Verma  <anujv@iitbhilai.ac.in>

	Fix invalid memory access in `bsdf` rasterizer.

	Do not generate SDF from bitmap if the `FT_GLYPH_OWN_BITMAP` flag is not
	set.  In some cases the bitmap buffer is freed but still points to a valid
	address; to handle those cases check the flag before accessing the memory.

	* src/sdf/ftsdfrend.c (ft_bsdf_render): Handle the above case.
	Also, return an error message if the bitmap's rows/pitch is invalid,
	otherwise `slot->buffer` might be assigned to some invalid memory location.
	(ft_sdf_render): Same as above.
	Plus, move the outline back to original state after rasterization and not if
	any error occurs.

2021-07-29  Heiko Becker  <heirecka@exherbo.org>

	* meson.build: Honor `--includedir` instead of hard-coding 'include'.

2021-07-29  Werner Lemberg  <wl@gnu.org>

	src/sfnt/ttcolr.c: Minor formatting.

2021-07-29  Dominik Röttsches  <drott@chromium.org>

	[sfnt] 'COLR' v1 PaintSweepGradient spec update

	* src/sfnt/ttcolr.c (read_paint): PaintSweepGradient follows other
	spec changes and now has the angles specified as F2DOT14, reflect
	that in the implementation.
	* include/freetype/ftcolor.h (FT_PaintSweepGradient): Update
	documentation.

2021-07-29  Dominik Röttsches  <drott@chromium.org>

	[sfnt] Retrieve affine matrix from offset in 'COLR' v1 parsing.

	* src/sfnt/ttcolr.c (read_paint): Implement spec change where
	affine transform matrix is now referenced by offset instead of
	being placed inline in the PaintTransform table.

2021-07-29  Dominik Röttsches  <drott@chromium.org>

	[sfnt] 'COLR' v1 PaintSkew related spec updates

	* src/sfnt/ttcolr.c (read_paint): Implement spec changes around
	PaintSkew, PaintSkewAroundCenter.  Update parsing to read shorter
	values as changed in the spec.
	* include/freetype/ftcolor.h (FT_PaintSkew): Update documentation.

2021-07-29  Dominik Röttsches  <drott@chromium.org>

	[sfnt] PaintRotate/PaintRotateAroundCenter spec updates

	* src/sfnt/ttcolr.c (read_paint): Implement spec change where
	PaintRotate and PaintRotateAroundCenter were split for a more
	compact format definition.  Update parsing to read shorter values
	as changed in the spec.
	* include/freetype/ftcolor.h (FT_PaintRotate): Update documentation.

2021-07-29  Dominik Röttsches  <drott@chromium.org>

	[sfnt] 'COLR' v1 PaintTranslate and PaintScale precision

	* src/sfnt/ttcolr.c (read_paint): Implement spec changes in
	PaintTranslate and PaintScale and friends.  Update parsing to read
	new shorter values.

2021-07-29  AnuthaDev  <anuthadev@gmail.com>

	README.git: Add Code of Conduct.

2021-07-25  Werner Lemberg  <wl@gnu.org>

	ChangeLog housekeeping.

	Archive old `ChangeLog` file.

	We no longer write ChangeLog entries manually; instead, the file will be
	created from commit messages (which should be formatted in GNU's ChangeLog
	style) by a call to

	  gitlog-to-changelog --format='%B%n'

	or something similar (this script is part of the 'gnulib' repository).

2021-07-24  Werner Lemberg  <wl@gnu.org>

	Fix some `cppcheck` warnings.

	* src/bzip2/ftbzip2.c (ft_bzip2_file_skip_output), src/gzip/ftgzip.c
	(ft_gzip_file_skip_output): Reduce scope of `delta`.

	* src/psaux/psintrp.c, src/psaux/psintrp.h (cf2_interpT2CharString): Add
	`const` to `buf` parameter.

	* src/raster/ftraster.c (DelOld): Add `const` to `profile` parameter.
	(Vertical_Sweep_Span): Reduce scope of `target`.
	(FT_Outline_Get_CBox): Reduce scope of `xMin`, `xMax`, `yMin`, `yMax`.

	* src/smooth/ftgrays.c (gray_render_conic): Reduce scope of `split`.
	(gray_sweep, gray_sweep_direct): Reduce scope of `area`.

	* src/tools/apinames.c (names_dump) <OUTPUT_WATCOM_LBC>: Reduce scope of
	`temp`.

2021-07-24  AnuthaDev  <anuthadev@gmail.com>

	* .gitlab-ci.yml: Fixed cmake build, using correct options.

2021-07-24  AnuthaDev  <anuthadev@gmail.com>

	* CMakeLists.txt: Make `cmake` handle disabled dependencies correctly.

	Include 'CMakeDependentOption'.

	Replace `FT_WITH_XXX` options with `FT_DISABLE_XXX` and `FT_REQUIRE_XXX`
	pairs.  Update option logic accordingly.

	Fixes #1066.

2021-07-24  Ben Wagner  <bungeman@chromium.org>

	[autofit] Split `afwrtsys.h`.

	The header file `afwrtsys.h` has two distinct functions: to include the
	required writing system headers and also to generate code for each writing
	system.  At each current use site only one or the other is used, with
	various macro trickery selecting one or the other.  Split this header into
	`afws-decl.h` for the required writing system declarations and `afws-iter.h`
	for iterating over the writing systems to generate code.

	The motivation for this change is that the Visual C++ compiler treats the
	standard include guard idiom like `#pragma once` 'if no non-comment code or
	preprocessor directive comes before or after the standard form of the
	idiom'.  It appears to check this after macro expansion, so if
	`WRITING_SYSTEM` expands to empty the bottom of `afwrtsys.h` is empty and
	looks like the standard include guard idiom which is treated like `#pragma
	once`, so subsequent inclusion of `afwrtsys.h` is elided.

	Fixes #1075.

	* src/autofit/afglobal.c (af_writing_system_classes), src/autofit/aftypes.h
	(AF_WritingSystem), src/autofit/rules.mk (AUTOF_DRV_H): Updated.

	* src/autofit/afwrtsys.h: Split into...
	* src/autofit/afws-decl.h, src/autofit/afws-iter.h: New files.
