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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).

git/fs: mount .git/fs: mount/attach disallowed

--- a/.gitattributes

+++ /dev/null

@@ -1,1 +1,0 @@

-ChangeLog       merge=merge-changelog

--- a/ChangeLog

+++ /dev/null

@@ -1,7815 +1,0 @@

-2021-07-18  Werner Lemberg  <[email protected]>

-

-	* Version 2.11.0 released.

-	==========================

-

-

-	Tag sources with `VER-2-11-0'.

-

-	* docs/VERSION.TXT: Add entry for version 2.11.0.

-	* docs/CHANGES: Updated.

-

-	* README, src/base/ftver.rc, builds/windows/vc2010/index.html,

-	builds/windows/visualc/index.html,

-	builds/windows/visualce/index.html,

-	builds/wince/vc2005-ce/index.html,

-	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

-	s/2.10.4/2.11.0/, s/2104/2110/.

-

-	* include/freetype/freetype.h (FREETYPE_MINOR): Set to 11.

-	(FREETYPE_PATCH): Set to 0.

-

-	* builds/unix/configure.raw (version_info): Set to 24:0:18.

-	* CMakeLists.txt (VERSION_MINOR): Set to 11.

-	(VERSION_PATCH): Set to 0.

-

-	* builds/toplevel.mk (dist): Ignore more git-related files.

-

-2021-07-17  David Turner  <[email protected]>

-

-	* src/smooth/ftgrays.c: Fix compilation if `FT_LONG64` is undefined.

-

-	The code assumed that if `__SSE2__` is defined, then 64-bit integer

-	types are available.  This is not the case apparently for certain

-	multilib compiler targets like 'x86_32.x86' used by Gentoo.

-

-	This patch fixes the issue by disabling the special code path when

-	64-bit integer types are not available.

-

-	Fixes #1071.

-

-2021-07-16  Alex Richardson  <[email protected]>

-

-	[tests] Allow arbitrary build directories.

-

-	* tests/issue-1063/main.c (main): I am building with a build

-	directory that is not directly inside the source tree, so the path

-	`../tests/data/As.I.Lay.Dying.ttf` does not resolve to the test

-	input file.  This change passes the test data directory as an

-	environment variable to allow arbitrary build directories.

-

-	* tests/meson.build: Updated.

-

-2021-07-16  Alex Richardson  <[email protected]>

-

-	* tests/issue-1063/main.c (main): Fix uninitialized variable.

-

-	I tried running `meson test` but the test just crashed and gdb

-	reported that the face argument to `FT_Get_Char_Index` was nonsense. 

-	With this change the test prints 'Could not open file: ' as it

-	should.

-

-2021-07-16  Werner Lemberg  <[email protected]>

-

-	[smooth] Minor fixes.

-

-	* src/smooth/ftgrays.c (gray_render_conic): Move variable and

-	structure declarations to beginning of function.  Inspite of C99

-	compliance we still do this for the sake of backward compatibility.

-	This also avoids a shadowing declaration of `count`.

-	(gray_convert_glyph_inner): Fix typo.

-

-2021-07-15  Ben Wagner  <[email protected]>

-

-	* src/smooth/ftgrays.c: Guard inclusion of `emmintrin.h`.

-

-	Guard inclusion of `emmintrin.h` with `#ifdef __SSE2__`.  The gcc

-	version of this header, `xmmintrin.h`, and `mmintrin.h` check that

-	the appropriate defines are set before defining anything (are

-	internally guarded).  However, the clang versions of these includes

-	are not internally guarded.  As a result of this, externally guard

-	the inclusion of these headers.

-

-2021-07-15  David Turner  <[email protected]>

-

-	[smooth] Implement Bézier quadratic arc flattening with DDA.

-

-	Benchmarking shows that this provides a very slighty performance

-	boost when rendering fonts with lots of quadratic Bézier arcs,

-	compared to the recursive arc splitting, but only when SSE2 is

-	available, or on 64-bit CPUs.

-

-	On a 2017 Core i5-7300U CPU on Linux/x86_64:

-

-	  ftbench -p -s10 -t5 -cb DroidSansFallbackFull.ttf

-

-	  Before: 4.033 us/op  (best of 5 runs for all numbers)

-	  After:  3.876 us/op

-

-	  ftbench -p -s60 -t5 -cb DroidSansFallbackFull.ttf

-

-	  Before: 13.467 us/op

-	  After:  13.385 us/op

-

-	* src/smooth/ftgrays.c (gray_render_conic): New implementation

-	based on DDA and optionally SSE2.

-

-2021-07-15  David Turner  <[email protected]>

-

-	[smooth] Minor speedup to smooth rasterizer.

-

-	This speeds up the smooth rasterizer by avoiding conditional

-	branches in the hot path.

-

-	- Define a fixed 'null cell', which will be pointed to whenever the

-	  current cell is outside of the current target region.  This avoids

-	  a `ras.cell != NULL` check in the `FT_INTEGRATE` macro.

-

-	- Also use the null cell as a sentinel at the end of all `ycells`

-	  linked-lists, by setting its x coordinate to `INT_MAX`.  This

-	  avoids a `if (!cell)` check in `gray_set_cell` as well.

-

-	- Slightly change the worker struct fields to perform a little less

-	  operations during rendering.

-

-	Example results (on a 2013 Corei5-3337U CPU)

-

-	  out/ftbench -p -s10 -t5 -bc DroidSansFallbackFull.ttf

-

-	  Before: 5.472 us/op

-	  After:  5.275 us/op

-

-	  out/ftbench -p -s60 -t5 -bc DroidSansFallbackFull.ttf

-

-	  Before: 17.988 us/op

-	  After:  17.389 us/op

-

-	* src/smooth/ftgrays.c (grat_TWorker): Replace `num_cells` field with

-	`cell_free` and `cell_limit`.

-	(NULL_CELL_PTR, CELL_MAX_X_VALUE, CELL_IS_NULL): New macros.

-	(gray_dump_cells, gray_set_cell, gray_sweep, gray_sweep_direct,

-	gray_convert_glyph_inner, gray_convert_glyph): Updated.

-

-2021-07-15  David Turner  <[email protected]>

-

-	[tests] Rewrite download script in Python3.

-

-	This commit replaces the bash script with a Python script that does

-	the same work, plus avoiding to download anything if the files are

-	already installed with the right content.

-

-	We now use the first 8 bytes of each file's sha256 hash for the

-	digest.

-

-	* tests/scripts/download-test-fonts.sh: Removed.

-	* tests/scripts/download-test-fonts.py: New script.

-	* tests/README.md: Updated.

-

-2021-07-15  Alex Richardson  <[email protected]>

-

-	Support architectures where `long` is smaller than pointers.

-

-	I am currently trying to compile FreeType for CHERI-extended ISAs

-	(CHERI-RISC-V and Arm's Morello), but I am getting compiler warnings

-	from the `FT_UINT_TO_POINTER` macro.  When compiling with the CHERI

-	Clang compiler, not using `uinptr_t` for casts between integers an

-	pointers results in the following `-Werror` build failures:

-

-	```

-	In file included from .../src/truetype/truetype.c:22:

-	  .../src/truetype/ttgload.c:1925:22: error:

-	    cast from provenance-free integer type to pointer type will

-	    give pointer that can not be dereferenced

-	    [-Werror,-Wcheri-capability-misuse]

-	  node->data = FT_UINT_TO_POINTER( glyph_index );

-	               ^

-	  .../include/freetype/internal/compiler-macros.h:79:34: note:

-	    expanded from macro 'FT_UINT_TO_POINTER'

-	```

-

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

-	The ISO C standard compliant fix for this would be to use

-	`uintptr_t` from `stdint.h`, but I am not sure if this is supported

-	by the minimum compiler version.  Therefore, use the

-	compiler-defined `__UINTPTR_TYPE__` macro (supported in GCC 4.6+ and

-	Clang since about 3.0) before checking for `_WIN64` and falling back

-	to `unsigned long`.

-

-2021-07-13  Oleg Oshmyan  <[email protected]>

-

-	[base] Fix `FT_Open_Face`'s handling of user-supplied streams.

-

-	This was already true (though undocumented) most of the time, but

-	not if `FT_NEW` inside `FT_Stream_New` failed or if the

-	`FT_OPEN_XXX` flags were bad.

-

-	Normally, `FT_Open_Face` calls `FT_Stream_New`, which returns the

-	user-supplied stream unchanged, and in case of any subsequent error

-	in `FT_Open_Face`, the stream is closed via `FT_Stream_Free`.

-

-	Up to now, however, `FT_Stream_New` allocates a new stream even if

-	it is already given one by the user.  If this allocation fails, the

-	user-supplied stream is not returned to `FT_Open_Face` and never

-	closed.  Moreover, the user cannot detect this situation: all they

-	see is that `FT_Open_Face` returns `FT_Err_Out_Of_Memory`, but that

-	can also happen after a different allocation fails within the main

-	body of `FT_Open_Face`, when the user's stream has already been

-	closed by `FT_Open_Face`.  It is plausible that the user stream's

-	`close` method frees memory allocated for the stream object itself,

-	so the user cannot defensively free it upon `FT_Open_Face` failure

-	lest it ends up doubly freed.  All in all, this ends up leaking the

-	memory/resources used by user's stream.

-

-	Furthermore, `FT_Stream_New` simply returns an error if the

-	`FT_OPEN_XXX` flags are unsupported, which can mean either an

-	invalid combination of flags or a perfectly innocent

-	`FT_OPEN_STREAM` on a FreeType build that lacks stream support.

-	With this patch, the user-supplied stream is closed even in these

-	cases, so the user can be sure that if `FT_Open_Face` failed, the

-	stream is definitely closed.

-

-	* src/base/ftobjs.c (FT_Stream_New): Don't allocate a buffer

-	unnecessarily.

-	Move error-handling code to make the control flow more obvious.

-	Close user-supplied stream if the flags are unsupported.

-	`FT_Stream_Open` always sets `pathname.pointer`, so remove the

-	redundant (re)assignment.  None of the `FT_Stream_Open...` functions

-	uses `stream->memory`, so keep just one assignment at the end,

-	shared among all possible control flow paths.

-	('Unsupported flags' that may need a stream closure can be either an

-	invalid combination of multiple `FT_OPEN_XXX` mode flags or a clean

-	`FT_OPEN_STREAM` flag on a FreeType build that lacks stream

-	support.)

-

-2021-07-13  Oleg Oshmyan  <[email protected]>

-

-	[base] Reject combinations of incompatible `FT_OPEN_XXX` flags.

-

-	The three modes are mutually exclusive, and the documentation of the

-	`FT_OPEN_XXX` constants notes this.  However, there was no check to

-	validate this in the code, and the documentation on `FT_Open_Args`

-	claimed that the corresponding bits were checked in a well-defined

-	order, implying it was valid (if useless) to specify more than one.

-	Ironically, this documented order did not agree with the actual

-	code, so it could not be relied upon; hopefully, nobody did this and

-	nobody will be hurt by the new validation.

-

-	Even if multiple mode bits were allowed, they could cause memory

-	leaks: if both `FT_OPEN_STREAM` and `stream` are set along with

-	either `FT_OPEN_MEMORY` or `FT_OPEN_PATHNAME`, then `FT_Stream_New`

-	allocated a new stream but `FT_Open_Face` marked it as an 'external'

-	stream, so the stream object was never released.

-

-	* src/base/ftobjs.c (FT_Stream_New): Reject incompatible

-	`FT_OPEN_XXX` flags.

-

-2021-07-12  Alex Richardson  <[email protected]>

-

-	* meson.build: Fix build for other UNIX systems (e.g., FreeBSD).

-

-	Without this change the build of `unix/ftsystem.c` fails because the

-	`ftconfig.h` header that defines macros such as `HAVE_UNISTD_H` and

-	`HAVE_FCNTL_H` is only being generated for Linux, macOS, and Cygwin

-	systems:

-

-	```

-	.../builds/unix/ftsystem.c:258:32: error:

-	    use of undeclared identifier 'O_RDONLY'

-	file = open( filepathname, O_RDONLY );

-	```

-

-	Instead of hardcoding a list of operating systems for this check,

-	update the logic that decides whether to build the file and set a

-	boolean flag that can be checked instead.

-

-2021-07-12  Werner Lemberg  <[email protected]>

-

-	[autofit] More clean-ups.

-

-	* src/autofit/afhints.h (AF_GlyphHintsRec): Remove the no longer

-	needed fields `xmin_delta` and `xmax_delta`.

-

-	* src/autofit/afhints.c (af_glyph_hints_reload),

-	src/autofit/afloader.c (af_loader_load_glyph): Updated.

-

-2021-07-12  Werner Lemberg  <[email protected]>

-

-	Small clean-ups for the last few commits.

-

-	* include/freetype/fttrace.h (afwarp): Removed.

-

-2021-07-12  David Turner  <[email protected]>

-

-	Remove obsolete `AF_Angle` type and related sources.

-

-	* src/autofit/afangles.c: File removed.  Functions related to

-	sorting moved to...

-	* src/autofit/afhints.c (af_sort_pos, af_sort_and_quantize_widths):

-	This file.

-	* src/autofit/afangles.h: File removed.

-	* src/autofit/aftypes.h: Updated.

-	* src/autofit/autofit.c: Updated.

-

-	* src/autofit/rules.mk (AUTOF_DRV_SRC): Updated.

-

-2021-07-12  David Turner  <[email protected]>

-

-	Remove experimental auto-hinting 'warp' mode.

-

-	This feature was always experimental, and probably never worked

-	properly.  This patch completely removes it from the source code,

-	except for a documentation block describing it for historical

-	purposes.

-

-	* devel/ftoption.h, include/freetype/config/ftoption.h: Remove

-	`AF_CONFIG_OPTION_USE_WARPER`.

-

-	* include/freetype/ftdriver.h: Document 'warping' property as

-	obsolete.

-

-	* src/autofit/afwarp.c, src/autofit/afwarp.h: Files removed.

-	* src/autofit/*: Remove any code related to warp mode.

-

-2021-07-12  David Turner  <[email protected]>

-

-	Remove experimental 'Latin2' writing system (`FT_OPTION_AUTOFIT2`).

-

-	This code has always been experimental and was never compiled anyway

-	(`FT_OPTION_AUTOFIT2` does not appear in `ftoption.h` or even any of

-	our build files).

-

-	* include/freetype/internal/fttrace.h (aflatin2): Removed.

-	* src/autofit/aflatin2.h, src/autofit/aflatin2.c: Files removed.

-	* src/autofit/afloader.c: Remove undocumented hook to activate

-	Latin2 system.

-	* src/autofit/afstyles.h: Remove `ltn2_dflt` style definition.

-	* src/autofit/afwrtsys.h: Remove `LATIN2` writing system definition.

-	* src/autofit/autofit.c: Updated.

-

-2021-07-05  Werner Lemberg  <[email protected]>

-

-	* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix argument.

-

-	Reported by Hin-Tak.

-

-2021-07-03  Werner Lemberg  <[email protected]>

-

-	* meson_options.txt: Sort alphabetically; no final full stops.

-

-2021-07-01  Ben Wagner  <[email protected]>

-

-	* src/truetype/ttgxvar.c (tt_set_mm_blend): Test `coords`.

-

-	It is undefined behavior to pass `NULL` to `memcpy`.  `coords' is

-	passed to `memcpy` but `TT_Get_MM_Blend` and `TT_Get_Var_Design`

-	explictly call `tt_set_mm_blend` with `coords` as `NULL`.  In

-	addition, `TT_Set_MM_Blend` has a similar possible issue.

-

-2021-06-30  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Support PaintScale in 'COLR' v1 parsing.

-

-	* include/freetype/ftcolor.h (FT_PaintFormat): Renumber values, add

-	`FT_COLR_PAINTFORMAT_SCALE`.

-	(FT_PaintScale): New structure to represent 'PaintScale*' tables.

-	(FT_COLR_Paint): Updated.

-

-	* src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration.

-	(read_paint): Parse 'PaintScale' and friends.

-

-2021-06-30  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Handle fonts without layer list in 'COLR' v1.

-

-	'COLR' v1 fonts do not necessarily need to have a layer list; for

-	this reason, 'fontTools' recently started generating fonts in a way

-	that drops the layer list if there are no layers in it.  This

-	results in the layer list offset becoming zero, which FreeType

-	treated as an invalid table.  Fix that and handle the case for layer

-	list offset being 0.  This slightly changes how we need to calculate

-	the starting offset for paints.

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr): Handle case of layer list

-	offset being zero without outright rejecting table.

-

-2021-06-30  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/raster/ftraster.c (Render_Single_Pass): Simplify `band_stack'.

-

-2021-06-29  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Do not skip the second pass without dropout control.

-

-	The second pass also fixes horizontal lines through the pixel centers.

-

-	* src/raster/ftraster.c (black_TWorker): Do not use `second_pass'.

-	(Render_Glyph): Skip the second pass only with the appropriate flag.

-

-2021-06-29  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Handle sub-band stack locally.

-

-	* src/raster/ftraster.c (black_TWorker): Move `band_stack' from here..

-	(Render_Single_Pass): ... to here and accept limit arguments.

-	(Render_Glyph): Updated.

-

-2021-06-25  Anurag Thakur  <[email protected]>

-

-	[CI] Introduce linux CI and refactor job names.

-

-	* .gitlab-ci.yml: Added jobs for building freetype on linux.

-

-2021-06-28  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Handle Bézier stack locally.

-

-	* src/raster/ftraster.c (black_TWorker): Move `arcs' from here...

-	(Conic_To, Cubic_To): ... to here to tighten their scope.

-	(Bezier_Up, Bezier_Down): ... Take the current `arc' argument.

-

-2021-06-28  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Improve paint limit checks

-

-	Paint tables can appear before the `base_glyphs_v1` offset if the

-	font is produced with the layer list before the base glyph list.  In

-	this case paint tables can occur after the layer list but before the

-	base glyph list.  Checks in the 'COLR' v1 code were rejecting fonts

-	with this layout.  Improve these checks by calculating a minimum

-	offset after which paint tables can occur and use that in safety

-	checks.

-

-	* src/sfnt/ttcolr.c (Colr, tt_face_load_colr): Declare

-	`paint_start_v1` and calculate that as the minimum of the end of

-	layer list and base glyph list.

-	(get_child_table_pointer, read_paint, tt_face_get_paint_layers):

-	Use that in safety checks.

-

-2021-06-28  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Clean up vertical sweep.

-

-	* src/raster/ftraster.c (black_TWorker): Replace the current line

-	offset with the pointer and drop the increment.

-	(Function_Sweep_Init): Take values as arguments instead of pointers.

-	(Vertical_Sweep_*, Horizontal_Sweep_Init, Draw_Sweep): Updated.

-

-2021-06-25  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Make `band_top' local variable.

-

-	* src/raster/ftraster.c (black_TWorker): Move `band_top' from here...

-	(Render_Single_Pass): ... to here, and refactor.

-	(Render_Glyph): Updated.

-

-2021-06-25  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Adjust sub-band bisecting limits.

-

-	We can bisect a band until it is just a single scan line.  This might

-	be slow and cause time-outs but if we need to impose limits it should

-	be elsewhere.

-

-	* src/raster/ftraster.c (Render_Single_Pass): Tweak sub-banding.

-

-2021-06-25  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/raster/ftraster.c (Render_Single_Pass): Remove dead code.

-

-2021-06-25  Werner Lemberg  <[email protected]>

-

-	[base] Add trace level to logging output.

-

-	Some practical debugging work has shown that displaying level X of

-	an `FT_TRACEX` macro in the output of `FT2_DEBUG="...  -v"` would be

-	very helpful to find out which trace level should be selected.  As

-	an example, we now get output like

-

-	```

-	[ttobjs:2]    TTF driver

-	[ttobjs:2]      SFNT driver

-	[sfobjs:2]      not a font using the SFNT container format

-	[t1objs:2]    Type 1 driver

-	[stream:7]    FT_Stream_EnterFrame: 14 bytes

-	```

-

-	* include/freetype/internal/ftdebug.h (FT_LOGGING_TAGX): New macro.

-	(FT_LOG): Use it to add the trace level to the logging tag.

-

-	* include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):

-	Adjust.

-

-	* docs/DEBUG: Updated.

-

-2021-06-24  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth, raster] Fix up and align error codes.

-

-	FT_Render_Glyph picked up FAILURE or 1 returned from the raster

-	function, which became a confusing error code. Instead, return

-	Raster_Overflow in the unlikely event that banding does not help or

-	another meaningful error.

-

-	* src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph):

-	Use Raster_Overflow when the rendering pool is exhausted and return it

-	if banding does not help.

-	(gray_raster_render): Use Smooth_Err_Ok.

-

-	* src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow

-	if banding does not help or another error code.

-

-2021-06-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth, raster] Remove synonymous error macros.

-

-	* src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/.

-	(gray_convert_glyph_inner): Updated accordingly.

-

-	* src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros.

-	(New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up,

-	Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render):

-	Updated accordingly.

-

-2021-06-22  Dominik Röttsches  <[email protected]>

-

-	[sfnt] s/PaintTransformed/PaintTransform/, s/transformed/transform/.

-

-	* include/freetype/ftcolor.h (FT_PaintTransformed, FT_PaintFormat,

-	FT_COLR_Paint): Do it to make it harmonize with other names such as

-	'PaintTranslate'.

-

-	* src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Ditto.

-

-2021-06-22  Dominik Röttsches  <[email protected]>

-

-	Move 'COLR' API to `ftcolor.h`.

-

-	* include/freetype/freetype.h: Cut section layer managament

-	containing 'COLR' v0 and v1 API and move it to `ftcolor.h` as

-	requested by Werner on freetype-devel.

-	* include/freetype/ftcolor.h: Paste that section.

-

-2021-06-19  Werner Lemberg  <[email protected]>

-

-	[truetype] Fix integer overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312

-

-	* src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`.

-

-2021-06-19  Werner Lemberg  <[email protected]>

-

-	[autofit] Prevent hinting if there are too many segments.

-

-	This speeds up handling of broken glyphs.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35309

-

-	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Implement

-	it.

-

-2021-06-18  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely.

-

-2021-06-16  David Turner  <[email protected]>

-

-	[autofit] Fix return value of `FT_Load_Glyph`.

-

-	* src/autofit/afglobal.c (af_face_globals_get_metrics): The issue is

-	that `style_metrics_init` sometimes returns -1 without clearing

-	`error`.  While looping to `Again`, the next operation is

-	successful, but -1 is still returned by the function.  The fix is to

-	set `error` to 0 appropriately.

-

-	Fixes #1063.

-

-2021-06-15  David Turner  <[email protected]>

-

-	[meson] Add first regression test to FreeType.

-

-	* tests/README.md: New file that explains how to build and run the

-	tests with the Meson build.

-

-	* tests/scripts/download-test-fonts.sh: New bash script to download

-	test font files to the `tests/data` folder.

-

-	* meson.build, meson_options.txt: Add 'tests' option to enable

-	building and running the test programs (disabled by default).

-

-	* tests/meson.build: New file.

-

-	* tests/issue-1063/main.c: Simple regression test to exhibit issue

-	1063.

-

-	* .gitignore: Ignore the content of the `tests/data` folder for

-	now.

-

-2021-06-12  Alexei Podtelezhnikov  <[email protected]>

-

-	[type42] Fix new memory leak.

-

-	We need to inverse inheritance of FT_GlyphSlot_Internal so that we

-	have a chance to free the rendered bitmap from the parent slot.

-

-	* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts

-	of the child `ttslot' and replace it with the parent structure.

-	(T42_GlyphSlot_Done): Updated accordingly.

-

-2021-06-12  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix another assertion.

-

-	* src/psaux/psintrp.c (cf2_interpT2CharString)

-	<cf2_escCALLOTHERSUBR>: Convert assertion into error, since the

-	problem can happen with invalid user input.

-

-	Test case is file

-

-	  fuzzing/corpora/legacy/oss-fuzz/5754332360212480-unknown-read

-

-	in the `freetype2-testing` repository.

-

-2021-06-12  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix assertions.

-

-	* src/psaux/pshints.c (cf2_hintmap_adjustHints): Check for overflow

-	before emitting an assertion error.

-

-	Test case is file

-

-	 fuzzing/corpora/legacy/oss-fuzz/4594115297673216-integer-overflow

-

-	in the `freetype2-testing` repository.

-

-2021-06-09  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttinterp.c (TT_RunIns): Optimize tracing.

-

-2021-06-09  Alexei Podtelezhnikov  <[email protected]>

-

-	[sdf] Fix SDF positioning.

-

-	* src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to

-	`bitmap_top' and `bitmap_left'.

-

-	* sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning.

-

-2021-06-08  Werner Lemberg  <[email protected]>

-

-	Fix 'devel' build for 'COLR' v1.

-

-	* devel/ftoption.h: Synchronize with

-	  `include/freetype/config/ftoption.h`.

-

-2021-06-08  Werner Lemberg  <[email protected]>

-

-	[sfnt] Sanitize cmap4 table better.

-

-	Fixes #1062.

-

-	* src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of

-	`length` gracefully.

-

-2021-06-08  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Pointer validity check when reading 'COLR' v1 layers

-

-	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the

-	existing sanity checks, ensure that the pointer to the layer to be

-	read is within the 'COLR' v1 table.

-

-2021-06-08  Werner Lemberg  <[email protected]>

-

-	* src/sdf/ftsdfcommon.c: Fix inclusion of header files.

-

-2021-06-08  Werner Lemberg  <[email protected]>

-

-	[sdf] Make `make multi` work.

-

-	* src/sdf/ftsdf.c: Include `ftbitmap.h`.

-

-	* src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`.

-	Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends.

-

-	* src/sdf/ftsdfcommon.c: New file.

-

-	* src/sdf/rules.mk, src/sdf/sdf.c: Updated.

-

-2021-06-08  Anuj Verma  <[email protected]>

-

-	[sdf] Use 8 bits for final SDF output instead of 16bits.

-

-	Since 8-bits is enough to represent SDF data we no longer require

-	16-bits for this purpose.  Also, we now normalize the output data

-	to use the entire 8-bit range efficiently.  For example: if we use

-	3.5 format with a spread of 1 we basically only use the starting

-	5-bits.  By normalizing we can use the entire 8-bit range.

-

-	* include/freetype/freetype.h (FT_Render_Mode): Updated description

-	for `FT_RENDER_MODE_SDF` regarding this change.

-

-	* include/freetype/ftimage.h (FT_Pixel_Mode): Removed

-	`FT_PIXEL_MODE_GRAY16` since no longer required.

-

-	* include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer

-	required.

-

-	* src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit

-	bitmap instead of 16-bit buffer.

-

-	* src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert

-	16.16 distance value to our desired format.

-

-	* src/sdf/ftsdf.c (sdf_generate_with_overlaps,

-	sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function

-	and also use 8-bit output buffer.

-

-	* src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead

-	of 16-bit buffer.

-

-2021-06-02  Ben Wagner  <[email protected]>

-	    Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix fallout from 2021-05-29 change.

-

-	* src/sfnt/ttcolr.c (find_base_glyph_record,

-	find_base_glyph_v1_record): Adjust binary search.

-

-	Needs to be updated with change to unsigned.

-

-2021-06-02  Werner Lemberg  <[email protected]>

-

-	* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing.

-

-	Problem reported by Alexei.

-

-2021-06-02  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix MSVC compiler warnings.

-

-	* src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):

-	Add cast.

-

-2021-05-29  Werner Lemberg  <[email protected]>

-

-	Fix compilation errors and (some) warnings for clang++.

-

-	* src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static.

-

-	* src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c

-	(ftc_snode_compare): Remove semicolon.

-

-	* src/cff/cffparse.c (cff_parser_run): Add `break` statement.

-

-	* src/cid/cidload.c (cid_hex_to_binary): Add cast.

-

-	* src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop.

-	(bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add

-	casts.

-	* src/sdf/ftsdf.c (sdf_generate_bounding_box,

-	sdf_generate_with_overlaps): Ditto.

-	* src/sdf/ftsdfcommon.h (square_root): Ditto.

-	* src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render,

-	ft_bsdf_render): Ditto.

-

-	* src/sfnt/ttcolr.c (find_base_glyph_record,

-	find_base_glyph_v1_record): Fix variable signedness.

-	(read_color_line): Add cast.

-	(read_paint): Add casts.

-	Fix signedness issue.

-	(tt_face_get_colorline_stops) Fix signedness issues.

-

-	* src/sfnt/ttpost.c (load_format_20): Add casts.

-

-	* src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS):

-	Remove final semicolons.

-

-2021-05-29  Werner Lemberg  <[email protected]>

-

-	[build] Allow overriding of `ANSIFLAGS` for GNU make build.

-

-	* builds/*: Implement it.

-

-2021-05-27  Alexei Podtelezhnikov  <[email protected]>

-

-	[type42] Fix auto-hinting.

-

-	The autohinter could not access the base (unscaled) outline in the

-	child TrueType glyph slot. We now share the internal parts between

-	the parent and child glyph slots. Fixes #1057.

-

-	* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts

-	of `T42_GlyphSlot' and replace it with the child TrueType structure.

-	(T42_GlyphSlot_Done): Updated accordingly.

-

-2021-05-25  Werner Lemberg  <[email protected]>

-

-	[psaux] Guard and trace AFM kern data allocation.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543

-

-	* include/freetype/internal/fttrace.h: Add 'afmparse' trace

-	component.

-

-	* src/psaux/afmparse.c (FT_COMPONENT): Define.

-	(afm_parse_track_kern, afm_parse_kern_pairs): Protect against

-	allocations bombs.

-	Add tracing.

-	(afm_parse_kern_data): Don't allow multiple kern data sections.

-

-2021-05-23  Alexei Podtelezhnikov  <[email protected]>

-

-	* meson.build (ft2_public_headers): Add missing `ftcid.h'.

-

-	Fixes #1058.

-

-2021-05-20  Alexei Podtelezhnikov  <[email protected]>

-

-	[type42] Avoid some memory zeroing.

-

-	* src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro.

-	* src/type42/t42parse.c (t42_parse_sfnts): Ditto.

-

-2021-05-19  Nikolaus Waxweiler  <[email protected]>

-

-	[CMake] Update dependency finders.

-

-	1. Fixes CMake using any found HarfBuzz version lower than the minimum

-	required. This is based on HALX99's merge request at

-	https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/31

-	2. Update FindHarfBuzz.cmake from

-	https://github.com/WebKit/WebKit/blob/1ce32454/Source/cmake/FindHarfBuzz.cmake

-	and guard post-CMake-3.1 features to keep the minimum version unchanged

-	3. Update FindBrotliDec.cmake to stop the warnings, based on what

-	https://github.com/google/woff2/blob/a0d0ed7d/cmake/FindBrotliDec.cmake

-	is doing

-

-	* CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Implement 1 and 2.

-	* builds/cmake/FindBrotliDec.cmake: Implement 3.

-

-2021-05-19  Ben Wagner  <[email protected]>

-

-	[gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`.

-

-	While a function pointer may be cast to another function pointer

-	type, it is required to cast the function pointer back to the

-	original function pointer type before calling it.  If a parameter is

-	a pointer the exact pointer type is required.  Using a pointer to a

-	different underlying type is technically undefined behavior.  The

-	wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took

-	`FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so

-	when gzip calls these callbacks through `alloc_func` or `free_func`

-	it invokes undefined behavior.  On most platforms this works out as

-	expected, but newer undefined behavior detectors and targets like

-	wasm can detect this and will produce an error.

-

-	* src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures

-	to exactly match `alloc_func` and `free_func`, respectively.

-	Internally, cast the `void*` opaque pointer to `FT_Memory`.

-

-2021-05-18  Alexei Podtelezhnikov  <[email protected]>

-

-	Prioritize the anti-aliasing renderer module.

-

-	* modules.cfg: Reorder the renderers.

-	* include/freetype/config/ftmodule.h: Ditto.

-

-2021-05-16  Alexei Podtelezhnikov  <[email protected]>

-

-	[sfnt] Additional guards on the POST table.

-

-	Fixes timeout (#1055) analyzed by Ben Wagner, reported as

-

-	  https://crbug.com/1194092

-

-	* src/sfnt/ttload.c (tt_face_load_post): Check POST format.

-	* src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode

-	charmap only if the glyph names exist.

-	* src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and

-	".null".

-

-2021-05-13  Daniel McArdle  <[email protected]>

-

-	[psaux] Use doubling allocation strategy for CF2_ArrStack.

-

-	Fixes timeout reported as

-

-	  https://crbug.com/1206181

-

-	* src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it.

-	* src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'.

-

-2021-05-12  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16.

-

-	Ten was barely enough for two slanted stems. Sixteen can actually fit

-	a bit more complicated scanlines.

-

-2021-05-11  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code.

-

-2021-05-11  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Faster bitmap sweeping.

-

-	Selecting the fill rule or checking the direct mode each time we call

-	`gray_hline' is sub-optimal.  This effectively splits the direct mode

-	into a separate code path while inlining `gray_hline' and saving 5-7%

-	of rendering time.

-

-	* src/smooth/ftgrays.c (gray_hline): Eliminated in favor of...

-	(FT_FILL_RULE, FT_GRAY_SET): ... these new macros...

-	(gray_sweep): ... inlined here.

-	(gray_sweep_direct): New function that handles the direct span buffer.

-	(gray_TWorker): Remove the span buffer.

-	(gray_raster_render, gray_convert_glyph): Updated.

-

-2021-05-10  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.

-

-	It is too bad the even-odd rule is not used much.

-

-2021-05-07  Alexei Podtelezhnikov  <[email protected]>

-

-	[type1] Avoid MM memory zeroing.

-

-	* src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map):

-	Tweak allocation macros.

-	* src/type1/t1objs.c (T1_Face_Done): Minor.

-

-2021-05-07  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro.

-

-2021-05-06  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro.

-

-2021-05-06  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro.

-

-2021-05-06  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/cid/cidload.c (cid_read_subrs): Tweak allocation macro.

-

-2021-05-06  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation.

-

-2021-05-05  Alexei Podtelezhnikov  <[email protected]>

-

-	[cff,psaux] Avoid memory zeroing (contd.).

-

-	* src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak

-	allocation macros.

-	* src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto.

-	* src/psaux/psstack.c (cf2_stack_init): Ditto.

-

-2021-05-04  Ben Wagner  <[email protected]>

-

-	* src/cid/cidload.c (cid_hex_to_binary): Improve return value.

-

-	Add argument to return the actual number of bytes that were decoded.

-	The actual number of bytes decoded can be quite variable depending

-	on the number of ignored 'whitespace' bytes or early termination

-	with `>`.

-	(cid_face_open): Updated to use this calculated value.  This avoids

-	trusting `parser->binary_length` is always be correct and reading

-	uninitialized bits if fewer are actually decoded.

-

-	First reported as

-

-	  https://crbug.com/1203240

-

-2021-05-03  Alexei Podtelezhnikov  <[email protected]>

-

-	[sfnt] Streamline POST format 2.0 handing.

-

-	To reduce memory allocations, we read an entire Pascal-string buffer

-	and convert it to a C-string buffer.  We also reject tables with

-	Postscript glyph names exceeding 63 bytes.

-

-	* src/sfnt/ttpost.c (load_format20): Implement it.

-	(load_post_names): Check the minimal POST table size.

-	(load_format25, tt_face_free_ps_names): Updated accordingly.

-

-2021-05-02  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf,pcf] Avoid memory zeroing (contd.).

-

-	* src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment,

-	_bdf_add_property, bdf_load_font): Tweak allocation macros.

-	* src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto.

-

-2021-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro.

-

-2021-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	[sfnt] Avoid some memory zeroing.

-

-	* src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face,

-	tt_name_ascii_from_{utf16,other}): Tweak allocaton macros.

-	* src/sfnt/ttload.c (tt_face_load_name): Ditto.

-

-2021-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros.

-

-2021-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro.

-

-2021-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	[truetype] Avoid some memory zeroing.

-

-	* src/truetype/ttinterp.c (Init_Context): Tweak allocation macro.

-	* src/truetype/ttpload.c (tt_face_load_cvt): Ditto.

-

-2021-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	[woff2] Avoid some memory zeroing.

-

-	* src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros.

-

-2021-04-30  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again.

-

-2021-04-27  Alexei Podtelezhnikov  <[email protected]>

-

-	[lzw] Preserve decompression stack when relocating to heap.

-

-	* src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when

-	relocating to heap.

-

-2021-04-27  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check.

-

-2021-04-27  Werner Lemberg  <[email protected]>

-

-	* src/psmodule.c (ps_unicodes_init): Ignore empty glyph names.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637

-

-2021-04-26  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change.

-

-2021-04-26  Alexei Podtelezhnikov  <[email protected]>

-

-	[cff] Avoid some memory zeroing.

-

-	* src/cff/cffparse.c (cff_parser_init): Tweak memory macro.

-	* src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers,

-	cff_charset_load, cff_vstore_load): Ditto.

-

-2021-04-26  Alexei Podtelezhnikov  <[email protected]>

-

-	[pfr] Avoid some memory zeroing.

-

-	* src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro.

-	* src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps,

-	pfr_phy_font_load): Ditto.

-

-2021-04-26  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro.

-

-2021-04-26  Alexei Podtelezhnikov  <[email protected]>

-

-	[psaux,psnames] Avoid some memory zeroing.

-

-	* src/psaux/psstack.c (cf2_stack_init): Tweak memory macro.

-	* src/psnames/psmodule.c (ps_unicodes_init): Ditto.

-

-2021-04-25  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] Avoid some memory zeroing.

-

-	* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY.

-	* src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto.

-

-2021-04-25  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf,pcf] Avoid some memory zeroing.

-

-	* src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font):

-	Tweak memory macros.

-	* src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto.

-	* src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property,

-	_bdf_parse_glyphs, _bdf_parse_start): Ditto.

-	(_bdf_add_property): Do not handle zero size.

-

-2021-04-25  Issam E. Maghni  <[email protected]>

-

-	* builds/meson/process_ftoption_h.py: Add LF at EOF.

-

-	This fixes

-

-	  .../ftoption.h:1030:10: error:

-	    no newline at end of file [-Werror,-Wnewline-eof]

-

-	for the generated `ftoption.h` file.

-

-2021-04-24  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/.

-	* builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/sfnt/sfdriver.c (get_win_string, get_apple_string,

-	sfnt_get_var_ps_name): Do not zero out the buffer.

-	* src/sfnt/sfobjs.c (sfnt_init_face): Ditto.

-	* src/sfnt/sfwoff.c (woff_open_font): Ditto.

-	* src/sfnt/sfwoff2.c (woff2_open_font): Ditto.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name):

-	Do not zero out the buffer.

-	* src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto.

-	* src/type1/t1load.c (parse_subrs, parse_charstrings,

-	parse_blend_axis_types): Ditto.

-	* src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto.

-	* src/type42/t42parse.c (t42_parser_init): Ditto.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[cid] s/FT_ALLOC/FT_QALLOC/ and clean up.

-

-	* src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer.

-	* src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load):

-	Do not zero out the buffer.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer.

-	* src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto.

-

-2021-04-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer.

-	* src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto.

-	* src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto.

-

-2021-04-22  Alexei Podtelezhnikov  <[email protected]>

-

-	[cache] Optimize SBit copying.

-

-	* src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer.

-	(ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/.

-

-2021-04-22  Alexei Podtelezhnikov  <[email protected]>

-

-	[gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer.

-	* src/otvalid/otvmod.c (otv_load_table): Ditto.

-

-2021-04-22  Alexei Podtelezhnikov  <[email protected]>

-

-	[psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not

-	zero out the buffer.

-

-2021-04-22  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

-

-	* src/base/ftobjs.c (open_face_PS_from_sfnt_stream,

-	Mac_Read_sfnt_Resource): Do not zero out the buffer.

-	* src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.

-	* src/base/ftrfork.c (raccess_make_file_name,

-	raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto.

-

-2021-04-20  Alexei Podtelezhnikov  <[email protected]>

-

-	[cache] Restore SBit copying for unowned (BDF) bitmaps.

-

-	* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore.

-	(ftc_snode_load): Check ownership and copy unowned bitmaps.

-

-2021-04-19  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Return in 'COLR' v1 when layer pointer outside table

-

-	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return

-	when paint pointer outside table.

-	(read_paint): Add missing return when paint pointer outside table.

-

-2021-04-18  Alexei Podtelezhnikov  <[email protected]>

-

-	[cache] Switch to lazy SBit setting.

-

-	* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed.

-	(ftc_snode_load): Take the bitmap ownership instead of copying.

-

-2021-04-16  Daniel Welty  <@danielwelty>

-

-	* src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch.

-

-2021-04-16  Werner Lemberg  <[email protected]>

-

-	* builds/unix/freetype2.m4: Fix help string formatting.

-

-	The indented `dnl` macros inserted unwanted horizontal space.

-

-	Problem reported by Ozkan Sezer <[email protected]>.

-

-2021-04-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Safeguard 'COLR' v1 layer extraction

-

-	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output

-	layer pointer to iterator if it is outside the 'COLR' table.

-	(read_paint): Do not attempt to read layers that are outside the

-	table.

-

-2021-04-02  Ben Wagner  <[email protected]>

-

-	[base] Complete `ft_glyphslot_clear`.

-

-	* src/base/ftobjs.c (ft_glyphslot_clear): This function is intended

-	to reset all the values of a glyph slot.  However, it was not

-	resetting the values of the advances and `glyph_index`.  Reset the

-	advances and `glyph_index` to zero.

-

-2021-04-02  Ben Wagner  <[email protected]>

-

-	[truetype] Prevent glyph program state from persisting.

-

-	`FDEF` instructions are specified as allowed only in 'prep' or

-	'fpgm'.  FreeType has attempted to prevent their use in the glyph

-	program, but they were still allowed in glyph programs if defined in

-	a function defined in 'prep' or 'fpgm' and called from the glyph

-	program.

-

-	Similarly, `IDEF` instructions are specified not to be able to

-	modify any existing instruction.  FreeType has attempted to prevent

-	their use in the glyph program, but they can still be used like

-	`FDEF`.

-

-	This change stores the initial bytecode range type and disallows the

-	use of `FDEF` and `IDEF` while running the glyph program.

-

-	Most other state is copied from the `TT_Size` into the execution

-	context.  However, it is possible for a glyph program to use `WS` to

-	write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to

-	write to the control value table.

-

-	Allowing any change to the global state from the glyph program is

-	problematic as the outlines of any given glyph may change based on

-	the order the glyphs are loaded or even how many times they are

-	loaded.  There exist fonts that write to the storage area or the

-	control value table in the glyph program, so their use should not be

-	an error.

-

-	Possible solutions to using these in the glyph program are

-

-	  * ignore the writes;

-	  * value-level copy on write, discard modified values when finished;

-	  * array-level copy on write, discard the copy when finished;

-	  * array-level copy up-front.

-

-	Ignoring the writes may break otherwise good uses.  A full copy

-	up-front was implemented, but was quite heavy as even well behaved

-	fonts required a full copy and the memory management that goes along

-	with it.  Value-level copy on write could use less memory but

-	requires a great deal more record keeping and complexity.  This

-	change implements array-level copy on write.  If any attempt is made

-	to write to the control value table or the storage area when the

-	initial bytecode range was in a glyph program, the relevant array

-	will be copied to a designated storage area and the copy used for

-	the rest of the glyph program's execution.

-

-	* src/truetype/ttinterp.h (TT_ExecContextRec): New fields

-	`iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`,

-	`glyfStorage`, and `origStorage`.

-

-	* src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle

-	`exc->glyfCvt`.

-	(Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use

-	it.

-	(Ins_WS): Handle `exc->glyfStorage`.

-	(Ins_FDEF, Ins_IDEF): Updated.

-	(TT_RunIns): Updated.

-	(TT_Done_Context): Free 'glyf' CVT working and storage area.

-	(TT_Load_Context): Fix/add casts.

-

-	* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast.

-

-2021-03-30  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Check validity of pointer location of `read_color_line`.

-

-	* src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch

-	child table pointer early for all paint formats that compute a child

-	table pointer.

-	(read_color_line, read_paint): Updated.

-	(tt_face_get_colorline_stops): Check `colr->table`.

-

-2021-03-28  Nikhil Ramakrishnan  <[email protected]>

-

-	[docs] Update docwriter stylesheet for 1.3.1.

-

-	This change is required to support docwriter 1.3.1.

-

-	See

-

-	  https://gitlab.freedesktop.org/freetype/docwriter/-/merge_requests/101

-

-	for more information.

-

-	* docs/markdown/stylesheets/extra.css:

-	(.wy-nav-content, .md-sidebar--secondary): Remove.

-

-2021-03-16  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later.

-

-2021-03-16  Ben Wagner  <[email protected]>

-

-	[sfnt] Fix memory leak in png loading.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/chromium/issues/detail?id=1182552

-

-	Memory is allocated and the pointer assigned to `rows` inside a

-	'setjmp' scope.  This memory must be freed outside the 'setjmp'

-	scope after a 'longjmp'.  Since `rows` is a local and modified

-	inside the 'setjmp' scope it must be marked volatile or it will have

-	an indeterminate value after the 'longjmp'.

-

-	* src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`.

-

-2021-03-16  Christopher Degawa  <[email protected]>

-

-	* CMakeLists.txt: Don't limit generation of 'pkg-config' file to UNIX.

-

-	mingw-w64 uses the 'pkg-config' files but does not set UNIX.

-

-2021-03-11  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning.

-

-2021-03-13  Werner Lemberg  <[email protected]>

-

-	Handle various VC++ compiler warnings.

-

-	Fixes #1039.

-

-	* src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside):

-	Initialize `sigma`.

-

-	* src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if

-	function arguments are invalid.

-	* src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast.

-

-	* src/sfnt/sfwoff2.c (woff2_decompress)

-	[!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`.

-

-	* src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`.

-

-2021-03-11  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Reduce copying during integration phase.

-

-	We now record `cover' and `area' directly into the linked list. This

-	makes rendering faster by 10% or even more at larger sizes.

-

-	* src/smooth/ftgrays.c (FT_INTEGRATE): Write directly.

-	(gray_TWorker): Add direct cell reference and remove unused fields.

-	(gray_set_cell): Consolidate the linked list management and pointers.

-	(gray_convert_glyph, gray_convert_glyph_inner): Updated.

-

-2021-03-10  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro.

-	(gray_render_line, gray_render_scanline): Use it.

-

-2021-03-09  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals.

-

-	These produce faster or more optimizable code.

-

-2021-03-08  Tim-Philipp Müller  <[email protected]>

-

-	[meson] Fix 'mmap' handling on Windows.

-

-	* meson.build (ft2_sources): Always use `windows/ftsystem.c` on

-	Windows unless mmap has been disabled.

-

-	  https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/5#note_829289

-

-2021-03-07  Tim-Philipp Müller  <[email protected]>

-

-	[ci] Add basic support for Meson builds with MSVC on Windows.

-

-	This adds meson jobs for VS2017 (x86 and x86_64).

-

-	* .gitlab-ci.yml: New file.

-

-2021-03-07  Tim-Philipp Müller  <[email protected]>

-

-	[meson] Add subproject fallbacks for 'libpng' and 'zlib'.

-

-	* subprojects/libpng.wrap, subprojects/zlib.wrap: New files.

-

-	* meson.build: Updated.

-

-2021-03-07  Xavier Claessens  <[email protected]>

-

-	[meson] Make it work with Windows.

-

-	* meson.build: Do not process `ftconfig.h` when not using

-	`ftconfig.h.in`.

-

-	Fixes #1029.

-

-2021-02-25  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix memory leak.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28148

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Reject fonts that have

-	multiple tables with the same tag.  While not explicitly forbidden

-	in the OpenType specification, it is implicitly forbidden by

-	describing a binary search algorithm for tables that only works

-	reliably if table tags are unique.

-

-2021-02-22  Werner Lemberg  <[email protected]>

-

-	* CMakeLists.txt: Update location of `LICENSE.TXT`.

-

-	Fixes #1035.

-

-2021-02-19  Werner Lemberg  <[email protected]>

-

-	* builds/unix/ax_pthread.m4: Update from 'autoconf-archive'.

-

-	A bunch of fixes were added recently to its git repository.

-

-2021-02-17  Werner Lemberg  <[email protected]>

-

-	[unix] Updates for autoconf 2.71.

-

-	This fixes warnings reported by autoupdate.

-

-	* builds/unix/ax_pthread.m4: Replace `as_echo` with `AS_ECHO`.

-

-	* builds/unix/configure.raw: Remove obsolete `AC_HEADER_STDC`.

-	Don't escape back quotes in messages for `AC_MSG_WARN`.

-

-2021-02-16  Werner Lemberg  <[email protected]>

-

-	* builds/toplevel.mk: Fix previous commit.

-

-	<top_level>: Use `TOP_DIR` in `wildcard` function.

-	(check_out_submodule, copy_submodule): Move down to come after

-	definition of `all` rule.

-	Call `mkdir` conditionally.

-

-2021-02-16  Werner Lemberg  <[email protected]>

-

-	* builds/toplevel.mk: Use rules for handling 'dlg'.

-

-	Suggested by Alexei.

-

-	(check_out_submodule, copy_submodule): New targets.

-	<top-level>: Replace calls to `shell` with rules.

-

-2021-02-16  Werner Lemberg  <[email protected]>

-

-	* builds/toplevel.mk: Avoid side effects of `shell`.

-

-	We use a dummy variable to catch its output.  Otherwise the `make`

-	program is going to interpret the return value of `shell`; this can

-	cause obscure warning or error messages or even be harmful.

-

-2021-02-16  Werner Lemberg  <[email protected]>

-

-	Move 'dlg' submodule to `subprojects` directory.

-

-	This is for future changes with Meson, which doesn't allow a

-	different name for its `subprojects` directory.  Having both a

-	`submodules` and a `subprojects` directory is confusing.

-

-	* .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR,

-	DLG_SRC_DIR): Updated.

-

-	* builds/toplevel.mk (<top-level>, do-dist),

-	builds/windows/vc2010/script.bat: Updated.

-

-	* src/tools/no-copyright: Updated.

-

-2021-02-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Update paint format values to support non-variable paints.

-

-	* freetype.h (FT_PaintFormat): Update paint format identifiers after

-	a specification change.  The specification was updated to have

-	sibling formats, variable and non-variable variants for each.

-	Reflect that here.

-

-	* sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as

-	the non-variable formats no longer have them.

-

-2021-02-15  Daniel E  <[email protected]>

-

-	* CMakeLists.txt: Improve 'bz2' support.

-

-	Not all distributions such as FreeBSD provide a `.pc` file for

-	'(lib)bz2' so follow autotools and add it to `Libs.private` instead.

-

-2021-02-13  Werner Lemberg  <[email protected]>

-

-	* src/tools/update-copyright-year: Fix single-year entry handling.

-

-	The fix from 2021-01-17 didn't cover the case where the year to be

-	updated is identical to the current year.

-

-2021-02-13  Werner Lemberg  <[email protected]>

-

-	Add new function `FT_Get_Transform`.

-

-	See

-

-	  https://github.com/harfbuzz/harfbuzz/issues/2428

-

-	for some reasons to introduce this function.

-

-	* include/freetype/freetype.h, src/base/ftobjs.c (FT_Get_Transform):

-	Implement it.

-

-2021-02-12  Alexei Podtelezhnikov  <[email protected]>

-

-	Decorate `qsort` callbacks with `cdecl`.

-

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

-	Add new macro.

-

-	* src/base/ftrfork.c, src/bdf/bdflib.c, src/gxvalid/gxvcommn.c,

-	src/psaux/afmparse.c, src/psnames/psmodule.c, src/type1/t1afm.c,

-	src/sfnt/sfwoff.c, src/sfnt/sfwoff2.c: Update `qsort` callbacks.

-

-	Fixes #1026 when compiling FreeType with an unusual calling

-	convention while the C library function `qsort` still expects

-	`cdecl`.

-

-2021-02-10  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Implement 'COLR' v1 sweep gradients.

-

-	* freetype.h (FT_PaintSweepGradient): Add `FT_PaintSweepGradient` to

-	represent a 'COLR' v1 sweep gradient.

-	Update format.

-	(FT_PaintFormat): Update shifted paint formats.

-	Sync with spec.

-	* sfnt/ttcolr.c (read_paint): Logic to parse sweep gradients.

-	Fix struct access in radial gradient implementation.

-

-2021-02-09  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Provide optional root transform for 'COLR' v1 glyph graph.

-

-	* include/freetype/freetype.h (FT_Get_Color_Glyph_Paint):

-	Additional function argument `root_transform` to control whether

-	root transform should be returned.

-	(FT_OpaquePaint): Additional tracking field to denote whether

-	root transform is to be returned.

-	* include/freetype/internal/sfnt.h

-	(TT_Get_Color_Glyph_Paint_Func): Propagate additional argument.

-	* src/base/ftobjs.c (FT_Get_Color_Glyph_Paint): Ditto.

-	* src/sfnt/ttcolr.c (tt_face_get_colr_glyph_paint): Return root

-	transform reflecting the size and tranform configured on

-	`FT_Face`.

-	(read_paint): Initialize and track status of insert_root_transform

-	flag.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	* meson.build: s/freetype2_dep/freetype_dep/.

-

-	Many projects (e.g., fontconfig, cairo) hardcode the `freetype_dep`

-	variable name to use FreeType as subproject because that was the

-	variable name in Centricular's Meson port of FreeType.  While they

-	should stop hardcoding that variable name, it does not cost us

-	anything to keep using that name to ease transition.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	[meson] Fix handling of HarfBuzz library.

-

-	* meson.build (harfbuzz_dep): Do not fall back to HarfBuzz by

-	default.

-

-	Otherwise it causes a dependency cycle:

-

-	  cairo => fontconfig => freetype2 => harfbuzz => cairo

-

-	Meson will still fall back to HarfBuzz subprojects if the `harfbuzz`

-	option is set to `enabled` instead of `auto` and a

-	`subprojects/harfbuzz.wrap` file is present.  In that case it is the

-	responsibility of the main project to set the proper options on each

-	subproject to break the dependency cycle.

-

-	Fixes: #1028.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	[meson] Fix dependency lookup and generate `ftconfig.h`.

-

-	- zlib: If not found on the system, meson can build it as a

-	  subproject.  We thus never use the (outdated) zlib support that

-	  comes with FreeType.  Doing so has the additional advantage that

-	  the zlib code can be shared with other projects like GLib if both

-	  are subprojects of an application.

-	- harfbuzz: Build as a subproject if not found on the system.

-	- 'QUESTION: What if the compiler doesn't support `-D` but uses `/D`

-	  instead as on Windows?'  Answer: Meson translate arguments for us.

-	- visibility: Replace self-made code with meson-specific solution.

-

-	* meson.build (ft2_defines): Rewrite logic to set and handle it.

-	(process_header_command): New variable, previously called

-	`ftoption_command`.

-	(ftoption_command, ftconfig_command): New variables.

-	(zlib_option): Removed.

-	(zlib_dep): New variable.

-	(ft2_deps): Updated.

-	(harfbuzz_dep): Updated.

-	(ftconfig_h_in, ftconfig_h): New variables.

-	(ft2_sources): Updated.

-	(ft2_lib): Updated, handle visibility.

-	(summary): Updted.

-

-	* meson_options.txt (zlib): Updated.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	* meson.build: Fix resource compilation on Windows.

-

-	This is copied from GStreamer's meson port of FreeType.

-

-	(ft2_sources): Add both debug and resource file (the latter for

-	Windows only).

-	(ft2_debug_src): Removed.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	* meson.build: s/ft2_libtool_version/ft2_pkgconfig_version/.

-

-	(freetype2_dep): Use it.

-

-	`ft2_libtool_version` would be the shared library version, not the

-	one we should use in file `freetype2.pc`.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	* meson.build: Use `meson.override_dependency`.

-

-	This is a new meson mechanism to avoid other projects to hard-code

-	the `freetype2_dep` variable name in their build definition.  It

-	also ensures that meson does not mix system and subproject versions

-	of FreeType inside of the same project.

-

-	Also remove outdated TODO because `declare_dependency` was already

-	there.

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	* meson.build (bzip2_dep): Simplify.

-

-	We remove `static:false` from `find_library('bz2')`.

-

-	I don't know whether the previous code was a workaround for an old

-	meson bug, but at least with version >=0.55.0 (which FreeType uses)

-	it picks the shared library when both are available.

-

-	File `freetype2.pc` still contains the full path to file `libbz2.so`

-	instead of `-lbz2` – that we need to do this is a meson bug even

-	present in the current version (0.57.0).

-

-2021-02-09  Xavier Claessens  <[email protected]>

-

-	* meson.build: Set project version.

-

-2021-02-04  Werner Lemberg  <[email protected]>

-

-	[base] Fix Netpbm tracing message.

-

-	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Don't emit Netpbm

-	warning if there is nothing to output.

-

-2021-02-04  Werner Lemberg  <[email protected]>

-

-	* src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.

-

-	This ensures good logging output, with all lines having a proper

-	prefix (if requested).

-

-	This is a continuation of a similar patch from 2020-12-02, which

-	missed some locations.

-

-2021-02-03  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/unix/configure.raw [mmap]: Restore default path.

-

-	Fixes #1023.

-

-2021-02-03  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix integer overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30154

-

-	* src/psaux/psblues.c (cf2_blues_capture): Use `SUB_INT32`.

-

-2021-02-02  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/unix/configure.raw [mmap support]: Explicitly handle Windows.

-

-	Fixes #1024.

-

-2021-01-31  Werner Lemberg  <[email protected]>

-

-	* builds/unix/configure.raw [mmap support]: Correctly handle Windows.

-

-	Fixes #1024.

-

-2021-01-31  Werner Lemberg  <[email protected]>

-

-	* builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.

-

-2021-01-31  Werner Lemberg  <[email protected]>

-

-	Always provide logging API.

-

-	It's easier to have stubs if FT_DEBUG_LOGGING is undefined than to

-	modify `ftexport.sym` conditionally.

-

-	Problem reported by Alexei.

-

-	* src/base/ftdebug.c: Include `ftlogging.h`.

-	(FT_Trace_Set_Level, FT_Trace_Set_Default_Level, FT_Set_Log_Handler,

-	FT_Set_Default_Log_Handler) [!FT_DEBUG_LOGGING]: Provide stubs.

-

-2021-01-31  Werner Lemberg  <[email protected]>

-

-	* builds/unix/configure.raw: Fix typo.

-

-	Bug introduced in Vincent's last commit bb33f03.

-

-	Fixes issue #1021.

-

-2021-01-27  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftstroke.c (FT_Stroker_EndSubPath): Ignore tiny gaps.

-

-	Fixes bug #1020.

-

-2021-01-27  Alexei Podtelezhnikov  <[email protected]>

-

-	[stroker] Minor clean-up.

-

-	* src/base/ftstroke.c (FT_Stroker_{ConicTo,CubicTo}): Reset the last

-	line length.

-	(FT_Stroker_EndSubPath): Call `ft_stroker_process_corner'.

-

-2021-01-27  Vincent Torri  <[email protected]>

-

-	* builds/windows/ftsystem.c: Add shared memory support on Windows.

-

-	* CMakeLists.txt (BASE_SRCS), builds/unix/configure.raw (FTSYS_SRC),

-	builds/windows/vc2010/freetype.vcxproj,

-	builds/windows/visualc/freetype.vcproj, meson.build (ft2_sources):

-	Add it (conditionally).

-

-2021-01-23  Werner Lemberg  <[email protected]>

-

-	Require HarfBuzz 2.0.0.

-

-	This is needed to make commit f1f9705f9 work.

-

-	* CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw

-	(harfbuzz_pkg), meson.build (harfbuzz_dep): Updated.

-

-2021-01-22  Alexei Podtelezhnikov  <[email protected]>

-

-	* autogen.sh: Absorb `version.sed'.

-	* version.sed: Removed.

-

-2021-01-19  Alexei Podtelezhnikov  <[email protected]>

-

-	* srd/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix return value.

-

-2021-01-15  Nikolaus Waxweiler  <[email protected]>

-

-	[afshaper] Fix hb_ot_tags_from_script deprecation warning.

-

-	* autofit/afshaper.c (af_shaper_get_coverage): Copy the source code

-	of the function as suggested in

-	https://github.com/harfbuzz/harfbuzz/issues/2737 and adjust to handle

-	at most three tags.

-

-2021-01-17  Werner Lemberg  <[email protected]>

-

-	* src/tools/update-copyright-year: Fix single-year entry handling.

-

-2021-01-16  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/unix/unixddef.mk: Remove the second DEVEL_DIR definition.

-

-2021-01-14  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Additional checks for 'colr' table presence.

-

-	* sfnt/ttcolr.c (tt_face_get_colr_glyph_paint,

-	tt_face_get_colorline_stops, tt_face_get_paint): Additional checks

-	for whether colr table is present.  Prevents crashes when these

-	methods are called on non-COLR fonts.

-

-2021-01-13  Dominik Röttsches  <[email protected]>

-

-	Add config option to test for 'COLR' v1 support in headers.

-

-	* include/freetype/config/ftoption.h (TT_SUPPORT_COLRV1): New macro

-	so that clients can test whether the FreeType checkout that they are

-	building against supports the 'COLR' v1 API.  This is intended to be

-	a temporary solution until 'COLR' v1 support is released in a

-	FreeType version and such a check can be made by using the version

-	number instead.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	[base] Fill 'COLR' v1 API templates to make them work (#59703).

-

-	* src/base/ftobjs.c (FT_Get_Color_Glyph_Paint, FT_Get_Paint_Layers,

-	FT_Get_Paint, FT_Get_Colorline_Stops): Add basic sanity checks,

-	check for existence of `FT_Face`, check arguments and delegate calls

-	for the respective 'COLR' v1 API to the SFNT driver.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Register 'COLR' v1 API in driver (#59703).

-

-	* include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_Paint_Func,

-	TT_Get_Paint_Layers_Func, TT_Get_Colorline_Stops_Func,

-	TT_Get_Paint_Func): New function pointer types.

-	(SFNT_Interface): Add them.

-	(FT_DEFINE_SFNT_INTERFACE): Updated.

-

-	* src/sfnt/sfdriver.c (PUT_COLOR_LAYERS_V1): New macro.

-	(sfnt_interface): Add new function pointers.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Add 'COLR' v1 API to retrieve color layers (#59703).

-

-	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): New function to get

-	the layers of a `PaintColrLayers` table in the font, using an

-	`FT_LayerIterator` from an `FT_PaintColrLayers` object retrieved via

-	`tt_face_get_paint`.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Add 'COLR' v1 API to iterate color stops (#59703).

-

-	* src/sfnt/ttcolr.c (tt_face_get_colorline_stops): New function to

-	return the current `FT_ColorStop` object from `FT_ColorStopIterator`.

-	Also increment the iterator.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Add API to get actual paint from `FT_OpaquePaint` (#59703).

-

-	* src/sfnt/ttcolr.c (tt_face_get_paint): New function to resolve an

-	`FT_OpaquePaint` paint reference into an `FT_COLR_Paint` object of a

-	certain format, which contains the detailed information stored in a

-	paint of the respective format.

-	(read_paint): New function to provide the format specific parsing

-	and to populate the data members of each specific `FT_COLR_Paint`

-	subtype.

-	(read_color_line): New function to parse retrieved color line

-	information into an `FT_ColorLine` object, which has information

-	about the color line extend mode as well as an

-	`FT_ColorStopIterator` object.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	[sfnt] Add API to retrieve 'COLR' v1 root paint (#59703).

-

-	* src/sfnt/ttcolr.c (BaseGlyphV1Record): New structure.

-	(tt_face_load_colr): Handle version 1 table header.

-	(find_base_glyph_v1_record): New auxiliary function.

-	(tt_face_get_colr_glyph_paint): New function to find the root

-	`FT_OpaquePaint` object for a given glyph ID.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	Add new methods required for 'COLR' v1 to public API (#59703).

-

-	* include/freetype/freetype.h (FT_Get_Color_Glyph_Paint): New method

-	for retrieving the root paint object for a color glyph by specifying

-	a glyph ID.

-	(FT_Get_Paint_Layers): New method for retrieving the layers of a

-	`PaintColorGlyph`.

-	(FT_Get_ColorLine_Stops): New method for retrieving the stops of a

-	color.

-	(FT_Get_Paint): New method for resolving an `FT_OpaquePaint` into an

-	`FT_COLR_Paint` object.

-

-2020-12-16  Dominik Röttsches  <[email protected]>

-

-	Add types required for 'COLR' v1 to public API (#59703).

-

-	* include/freetype/freetype.h (FT_PaintFormat, FT_ColorStopIterator,

-	FT_ColorIndex, FT_ColorStop, FT_PaintExtend, FT_ColorLine,

-	FT_Affine23, FT_CompositeMode, FT_OpaquePaint, FT_PaintColrLayers,

-	FT_PaintSolid, FT_PaintLinearGradient, FT_PaintRadialGradient,

-	FT_PaintGlyph, FT_PaintColrGlyph, FT_PaintTransformed,

-	FT_PaintTranslate, FT_PaintRotate, FT_PaintSkew, FT_PaintComposite,

-	FT_COLR_Paint): Adding structs and enum to represent paint format,

-	color stop information, gradient extend information, structs to

-	reference paint offsets, and to define transforms and compositions.

-	Adding a union type to represent the union of the structs,

-	distinguished by `FT_PaintFormat`.

-

-2021-01-10  Werner Lemberg  <[email protected]>

-

-	* builds/*: s/BUILD_DIR/PLATFORM_DIR/.

-

-	The old variable name caused confusion.

-

-2021-01-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds] Revert `FTMODULE_H' changes.

-

-	* builds/toplevel.mk, builds/freetype.mk: Revert changes.

-

-2021-01-07  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds/windows] Fix up DLG build with VC++.

-

-	* builds/windows/vc2010/script.bat: Copy headers to include/.

-	* builds/windows/vc2010/freetype.vcxproj: Remove DLG paths.

-

-2021-01-07  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds] Relocate `FTMODULE_H'.

-

-	* builds/toplevel.mk: Place `FTMODULE_H' in include/.

-	* builds/freetype.mk: Simplify included path.

-

-2021-01-07  Werner Lemberg  <[email protected]>

-

-	Fix ABI incompatibility.

-

-	* include/freetype/ftimage.h (FT_Pixel_Mode): Don't insert

-	`FT_PIXEL_MODE_GRAY16' but append it.

-

-	* src/base/ftobjs.c (pixel_modes): Updated.

-

-2021-01-07  Alexei Podtelezhnikov  <[email protected]>

-

-	[dlg] Move the headers to include/dlg to simplify their use.

-

-	* autogen.sh, builds/toplevel.mk: Copy headers to include/dlg.

-	* builds/freetype.mk, builds/windows/vc2010/freetype.vcxproj:

-	Simplify included path.

-	* include/freetype/internal/ftdebug.h: Simplify #include.

-	* src/dlg/rules.mk, .gitignore: Updated.

-

-2021-01-06  Werner Lemberg  <[email protected]>

-

-	* meson.build: Add summary.

-

-	Based on a patch from Vincent Torri <[email protected]>.

-

-2021-01-06  Torsten Hilbrich  <[email protected]>

-

-	* meson.build: Fix 'png' build option (#59458).

-

-	Without this patch, 'png' is always required.

-

-2021-01-04  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds/windows] Add SDF to VC2010 project.

-

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

-	AfterBuild conveniences.

-

-2020-12-26  Werner Lemberg  <[email protected]>

-

-	[sdf] Use 'counter-clockwise', not 'anti-clockwise'.

-

-	We prefer US nomenclature.

-

-	* src/sdf/ftsdf.c (SDF_Contour_Orientation):

-	s/SDF_ORIENTATION-ACW/SDF_ORIENTATION_CCW/.

-	Update all users.

-

-2020-12-26  Werner Lemberg  <[email protected]>

-

-	* src/base/ftobjs.c (pixel_modes): Updated.

-

-2020-12-26  Anuj Verma  <[email protected]>

-

-	[sdf] Remove custom memory tracker.

-

-	The internal FreeType memory tracker is sufficient.

-

-	* src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER, SDF_MemoryUser,

-	sdf_alloc, sdf_free, SDF_ALLOC, SDF_FREE,

-	SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,

-	SDF_MEMORY_TRACKER_DONE): Removed.

-

-	s/SDF_ALLOC/FT_ALLOC/.

-	s/SDF_FREE/FT_FREE/.

-

-	Other updates.

-

-2020-12-24  Werner Lemberg  <[email protected]>

-

-	[sdf] Fix `make multi`.

-

-	* src/sdf/ftsdf.c: Include `ftoutln.h`.

-

-2020-12-24  Werner Lemberg  <[email protected]>

-

-	[sdf] Fix tracing.

-

-	* include/freetype/internal.fttrace.h: Add 'bsdf' component.

-

-	* src/sdf/ftbsdf.c, src/sdf/ftsdf.c (FT_COMPONENT): Define.

-

-2020-08-21  Anuj Verma  <[email protected]>

-

-	[sdf] Add debugging function.

-

-	* src/sdf/ftsdf.c (sdf_shape_dump): New function.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add 'bsdf' renderer to 'sdf' module.

-

-	* src/sdf/ftsdfrend.c (ft_bsdf_render): New function.

-

-	(ft_bitmap_sdf_renderer_class): New structure.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add interface functions for the 'bsdf' rasterizer.

-

-	* src/sdf/ftsdf.c (bsdf_raster_new, bsdf_raster_reset,

-	bsdf_raster_set_mode, bsdf_raster_render, bsdf_raster_done): New

-	functions.

-

-	(ft_bitmap_sdf_raster): New variable.

-

-	* src/sdf/ftsdf.h: Updated.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add function to copy SDF data into output bitmap.

-

-	* src/sdf/ftbsdf.c (finalize_sdf): New function.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add '8-point sequential Euclidean distance mapping' algorithm.

-

-	* src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass,

-	edt8): New functions.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add function to copy source bitmap to distance map.

-

-	* src/sdf/ftbsdf.c (bsdf_init_distance_map): New function.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add functions to compute pixel edge distances.

-

-	* src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge):

-	New functions.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add function to find edge pixels in a grid of alpha values.

-

-	* src/sdf/ftbsdf.c (bsdf_is_edge): New function.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add essential structures for the 'bsdf' rasterizer.

-

-	* src/sdf/ftbsdf.c (ONE): New macro.

-	(BSDF_TRaster, ED, BSDF_Worker): New structures.

-	(zero_ed): New constant.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Add 'sdf' module to non-gnumake build systems.

-

-	* include/freetype/config/ftmodule.h: Add both the 'sdf' and 'bsdf'

-	renderers to the list of modules.

-

-	* CMakeLists.txt (BASE_SRCS): Add 'sdf' single-object module.

-

-2020-08-20  Anuj Verma  <[email protected]>

-

-	[sdf] Added basic overlapping contour support.

-

-	* src/sdf/ftsdf.c (sdf_generate_with_overlaps): New function.

-	(sdf_raster_render): Enable it.

-

-2020-08-19  Anuj Verma  <[email protected]>

-

-	[sdf] Add build infrastructure.

-

-	* src/sdf/module.mk, src/sdf/rules.mk: New files.

-

-	* src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration.

-

-	* include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition

-	for the 'sdf' module.

-

-	* include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace

-	definition for the `sdf' module.

-

-	* modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of

-	rasterizers.

-

-2020-08-19  Anuj Verma  <[email protected]>

-

-	[sdf] Add interface functions for the 'sdf' rasterizer.

-

-	* src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset,

-	sdf_raster_set_mode, sdf_raster_render, sdf_raster_done): New

-	functions.

-	(ft_sdf_raster): New structure.

-

-2020-08-19  Anuj Verma  <[email protected]>

-

-	[sdf] Add subdivision and bounding box optimization.

-

-	* src/sdf/ftsdf.c (sdf_generate_bounding_box): New function, which

-	is an optimized version of `sdf_generate`.

-	(sdf_generate_subdivision): New function.

-

-2020-08-19  Anuj Verma  <[email protected]>

-

-	[sdf] Add function to generate SDF.

-

-	* src/sdf/ftsdf.c (sdf_generate): New function, currently disabled.

-	This is a proof-of-concept implementation: It doesn't use any

-	optimization, it simply checks all grid points against all contours.

-

-2020-08-19  Anuj Verma  <[email protected]>

-

-	[sdf] Add functions to get shortest distance from any edge/contour.

-

-	* src/sdf/ftsdf.c (sdf_edge_get_min_distance): New function.

-	(sdf_contour_get_min_distance): New function, currently disabled.

-

-2020-08-18  Anuj Verma  <[email protected]>

-

-	[sdf] Add shortest distance finding functions.

-

-	* src/sdf/ftsdf.c (get_min_distance_line, get_min_distance_conic,

-	get_min_distance_cubic): New functions.  Note that

-	`get_min_distance_conic` comes with two implementations (using an

-	analytical and an iterative method, to be controlled with the

-	`USE_NEWTON_FOR_CONIC` macro).

-

-2020-08-18  Anuj Verma  <[email protected]>

-

-	[sdf] Add function to resolve corner distances.

-

-	* src/sdf/ftsdf.c (resolve_corner): New function.

-

-2020-08-18  Anuj Verma  <[email protected]>

-

-	[sdf] Add essential math functions.

-

-	* src/sdf/ftsdf.c (cube_root, arc_cos) [!USE_NEWTON_FOR_CONIC]: New

-	auxiliary functions.

-

-	* src/sdf/ftsdf.c (solve_quadratic_equation, solve_cubic_equation)

-	[!USE_NEWTON_FOR_CONIC]: New functions.

-

-2020-08-18  Anuj Verma  <[email protected]>

-

-	[sdf] Add utility functions for contours.

-

-	* src/sdf/ftsdf.c (get_control_box, get_contour_orientation): New

-	functions.

-	(split_conic, split_cubic, split_sdf_conic, split_sdf_cubic,

-	split_sdf_shape): New functions.

-

-2020-08-17  Anuj Verma  <[email protected]>

-

-	[sdf] Add functions to decompose `FT_Outline`.

-

-	* src/sdf/ftsdf.c (sdf_move_to, sdf_line_to, sdf_conic_to,

-	sdf_cubic_to): New auxiliary decomposition functions.

-	(sdf_compose_funcs): New structure.

-	(sdf_outline_decompose): New function.

-

-2020-08-17  Anuj Verma  <[email protected]>

-

-	[sdf] Structs, enums, macros, and functions for 'sdf' rasterizer.

-

-	* src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER)

-	[FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New macros.

-	(SDF_MemoryUser) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New

-	struct for memory usage tracing.

-	(sdf_alloc, sdf_free) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New

-	functions for memory usage tracing.

-

-	(SDF_ALLOC, SDF_FREE): New macros for memory management.

-	(SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,

-	SDF_MEMORY_TRACKER_DONE): New macros to set up memory usage tracing.

-

-	(USE_NEWTON_FOR_CONIC, MAX_NEWTON_DIVISIONS, MAX_NEWTON_STEPS,

-	CORNER_CHECK_EPSILON, CG_DIMEN): New configuration macros for

-	controlling the process of finding the shortest distance.

-

-	(MUL_26D6, VEC_26D6_DOT): New auxiliary macros.

-

-	(SDF_TRaster, SDF_Edge, SDF_Contour, SDF_Shape, SDF_Signed_Distance,

-	SDF_Params): New structs for setting up SDF data.

-	(SDF_Edge_Type, SDF_Contour_Orientation): New enums for SDF data.

-

-	(zero_vector, null_edge, null_contour, null_shape, max_sdf): Useful

-	constants.

-

-	(sdf_edge_new, sdf_edge_done, sdf_contour_new, sdf_contour_done,

-	sdf_shape_new, sdf_shape_done): New constructors and destructors.

-

-2020-08-17  Anuj Verma  <[email protected]>

-

-	[sdf] Add raster parameters structure.

-

-	* src/sdf/ftsdf.h (SDF_Raster_Params): New structure.

-

-	* src/sdf/sdf.c: Include source files in order to make a single

-	object of the module.

-

-2020-08-17  Anuj Verma  <[email protected]>

-

-	[sdf] Add 'sdf' renderer.

-

-	* src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface

-	functions.

-	Also add functions to set and get properties.

-

-2020-08-17  Anuj Verma  <[email protected]>

-

-	[sdf] Add common elements for 'sdf' and 'bsdf' renderers.

-

-	* src/sdf/ftsdfrend.h (SDF_Rendere_Module, ft_sdf_renderer_class,

-	ft_bitmap_sdf_renderer_class): New structures.

-

-	* src/sdf/ftsdfcommon.h (DEFAULT_SPREAD, MIN_SPREAD_MAX_SPREAD,

-	USE_SQUARED_DISTANCES): New macros.

-	(FT_INT_26D6, FT_INT_16D16, FT_26D6_16D16): New macros.

-	(FT_CALL, VECTOR_LENGTH_16D16): New macros.

-	(FT_26D6_Vec, FT_16D16_Vec, FT_16D16, FT_26D6, FT_6D10, FT_CBox):

-	New typedefs.

-	(square_root): New macro.

-

-	* src/sdf/ftsdferrs.h: Add module error setup.

-

-2020-08-16  Anuj Verma  <[email protected]>

-

-	[sdf] Add files for new 'sdf' module.

-

-	Here is a breakdown of what the files will contain.

-

-	* src/sdf/ftsdfrend.c, src/sdf/ftsdfrend.h: The 'sdf' and 'bsdf'

-	renderers.

-

-	* src/sdf/ftsdf.c, src/sdf/ftsdf.h: The rasterizer for the 'sdf'

-	renderer.

-	* src/sdf/ftbsdf.c, src/sdf/ftbsdf.h: The rasterizer for the 'bsdf'

-	renderer.

-

-	* src/sdf/ftsdfcommon.h: Commmon properties and functions for both

-	rasterizers.

-	* src/sdf/ftsdferrs.h: Common error defines.

-

-	* src/sdf/sdf.c: For building a single object of the entire module.

-

-2020-08-16  Anuj Verma  <[email protected]>

-

-	[base] Allow renderers of different formats.

-

-	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the

-	glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`.  The forthcoming

-	'bsdf' renderer will require bitmaps for processing.

-

-	* src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove

-	renderer's glyph format check before adding and removing them.  The

-	'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.

-

-2020-08-16  Anuj Verma  <[email protected]>

-

-	Add data types required for the forthcoming 'sdf' module.

-

-	* include/freetype/freetype.h (FT_Render_Mode): Add new render mode

-	`FT_RENDER_MODE_SDF`, which will be used to generate SDF.

-

-	* include/freetype/ftimage.h (FT_Pixel_Mode): Add new pixel mode

-	`FT_PIXEL_MODE_GRAY16`, which will be the output of the 'sdf'

-	module.

-	(FT_RASTER_FLAG_SDF): New raster flag to be used internally by the

-	'sdf' module.

-

-	* include/freetype/fttypes.h (FT_F6Dot10): New data type.

-

-2020-08-16  Anuj Verma  <[email protected]>

-

-	[base] Allow renderers of different formats.

-

-	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the

-	glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`.  The forthcoming

-	'bsdf' renderer will require bitmaps for processing.

-

-	* src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove

-	renderer's glyph format check before adding and removing them.  The

-	'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.

-

-2020-12-23  Werner Lemberg  <[email protected]>

-

-	* builds/windows/detect.mk (COPY): Make it work with `shell`.

-

-	Without this patch, we get the error

-

-	  builds/toplevel.mk:127: *** missing separator.  Stop.

-

-	Reported by Anuj, with a solution from Alexei.

-

-2020-12-23  Ignacio Casal Quinteiro  <[email protected]>

-

-	* meson.build (ft2_defines): Fix builds on Windows.

-

-2020-12-18  Tatsuyuki Ishi  <[email protected]>

-

-	[autofit] Fix double division in stem darkening.

-

-	The old code used to divide the darkening amount by em_ratio twice,

-	leading to unnecessarily bold stems on certain fonts with higher

-	units per em (e.g. Inter). This patch fixes it.

-

-	The return value of af_loader_compute_darkening was also changed to

-	use 16.16 fixed point to get rid of a redundant truncation operation.

-	This should slightly improve the precision, although it's still

-	bottlenecked by the emboldening function, which uses 26.6 fixed point.

-

-	* src/autofit/afloader.[ch]

-	(af_loader_compute_darkening): Return FT_Fixed.

-	(af_loader_embolden_glyph_in_slot): Revise calculations.

-

-2020-12-17  Alexei Podtelezhnikov  <[email protected]>

-

-	* include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): New public macro.

-

-	The driver name is needed for `FT_Property_Set' and `FT_Property_Get'.

-

-2020-12-16  Chris Liddell  <[email protected]>

-

-	[truetype] Fix incremental metrics (#59503).

-

-	* src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph):

-	Previously, the code would populate the phantom points before

-	calling the `get_glyph_metrics` callback.  For formats like PCL XL

-	format 1, class 2 downloaded fonts (where metrics are removed from

-	the TTF header), this causes problems when the hinting program uses

-	the phantom points (misplaced and distorted glyphs) due to the

-	metrics being unset (all zeros).

-	(tt_get_metrics_incr_overrides): Renamed to...

-	(tt_get_metrics_incremental): ... this.  Updated caller

-

-	* include/freetype/ftincrem.h: Update the documentation to make it

-	clearer that `get_glyph_metrics` is to retrieve metrics from a

-	non-standard source, but *not* for the purpose of imposing custom

-	metrics.

-

-2020-12-14  Werner Lemberg  <[email protected]>

-

-	[type42] Pacify static analysis tools (#59682).

-

-	* src/type42/t42objs.c (T42_Size_Init, T42_GlyphSlot_Init): Avoid

-	warnings about uninitialized variables.

-

-2020-12-07  Werner Lemberg  <[email protected]>

-

-	* builds/unix/configure.raw: Don't set `FT_DEBUG_LOGGING`.

-

-	All debug options are handled exclusively in `ftoption.h`.

-

-2020-12-07  Werner Lemberg  <[email protected]>

-

-	* src/*: More fixes for using a '\n' in `FT_TRACE` and `FT_ERROR`.

-

-2020-12-07  Werner Lemberg  <[email protected]>

-

-	*/*: s/FT_LOGGING/FT_DEBUG_LOGGING/.

-

-2020-12-05  Werner Lemberg  <[email protected]>

-

-	* builds/toplevel.mk (do-dist): Remove `submodules` directory.

-

-2020-12-02  Werner Lemberg  <[email protected]>

-

-	* src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.

-

-	This ensures good logging output, with all lines having a proper

-	prefix (if requested).

-

-2020-12-02  Werner Lemberg  <[email protected]>

-

-	[base] Don't close 'stderr' after logging.

-

-	* src/base/ftdebug.c, builds/windows/ftdebug.c (ft_logging_deinit):

-	Fix it.

-

-2020-12-02  Werner Lemberg  <[email protected]>

-

-	* submodules/dlg: Updated to commit 9f0c8b22.

-

-2020-12-02  Werner Lemberg  <[email protected]>

-

-	* src/bdf/bdflib.c: Fix `-Wformat` warning.

-

-2020-12-02  Werner Lemberg  <[email protected]>

-

-	Improve setup for 'dlg' library.

-

-	* autogen.sh (copy_submodule_file), builds/toplevel.mk: Redirect

-	stderr to `/dev/null`.

-

-	* builds/toplevel.mk: Move code block to handle 'dlg' stuff into

-	`check_platform` conditional.

-	Also fix wildcard expressions for guarding `git submodule` commands.

-	Also make file copying work with non-Unix platforms (untested).

-

-2020-12-01  Werner Lemberg  <[email protected]>

-

-	[build] Use gcc (and clang) in C99 mode.

-

-	Other compilers are unchanged.

-

-	* builds/compiler/gcc-dev.mk, builds/compiler/gcc.mk (ANSIFLAGS):

-	s/-ansi/-std=c99/.

-

-	* builds/freetype.mk (FT_CFLAGS): Remove `-std=c99`.

-

-	* builds/unix/configure.raw: Handle C99.

-	Remove no longer needed test for gcc 4.6 and earlier.

-

-2020-12-01  Werner Lemberg  <[email protected]>

-

-	[dlg] Fix compiler warnings.

-

-	* src/dlg/dlgwrap.c: Duplicate some feature test macros from

-	`dlg.c`, which must come first before loading standard headers.  For

-	example, `freetype.h` loads `stdio.h` if compiled in debug mode.

-

-2020-12-01  Werner Lemberg  <[email protected]>

-

-	* src/type42/t42parse.c: Fix `-Wformat` warnings.

-

-2020-12-01  Priyesh Kumar  <[email protected]>

-

-	[builds/unix] Check for 'pthread' library.

-

-	* builds/unix/ax_pthread.m4: New file, taken from 'autoconf-archive'

-	git repository.

-

-	* builds/unix/configure.raw: Check for 'pthread'; also check whether

-	it works.

-

-2020-12-01  Werner Lemberg  <[email protected]>

-

-	[base] Implement vertical alignment of log printing.

-

-	Based on a patch by Priyesh.

-

-	* include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):

-	New macro.

-

-	* src/base/ftdebug.c, builds/windows/ftdebug.c (ft_log_handler):

-	Print logs after a fixed width to handle different lengths of

-	`FT_COMPONENT` entries.

-	Use `ft_strrchr` to check for final newline character.

-

-2020-11-30  Priyesh Kumar  <[email protected]>

-

-	Update logging related documentation.

-

-	* docs/DEBUG: Updates related to `FT_LOGGING`.

-

-	* README.git: Updates related to logging.

-

-2020-11-30  Priyesh Kumar  <[email protected]>

-

-	* src/*: Fix `-Wformat` warnings.

-

-2020-11-30  Priyesh Kumar  <[email protected]>

-

-	[builds/windows] Changes to build 'dlg' with FreeType on Windows.

-

-	We only support Visual C++ 2010 and newer.

-

-	* builds/windows/vc2010/script.bat: New windows batch file to copy

-	necessary 'dlg' files from `submodules/dlg` to `src/dlg`.  This file

-	is used as a pre-built event in Visual C++.

-

-	* builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.

-

-	* builds/windows/vc2010/freetype.vcxproj.filters: Add

-	`src/dlgwrap.c`.

-

-	* builds/windows/vc2010/freetype.vcxproj

-	(AdditionalIncludeDirectories): Add include files of dlg for 'Debug'

-	and 'Debug Static' configurations on both 'x64' and 'win32'

-	platforms.

-	(PreprocessorDefinitions): Add `FT_LOGGING` for 'Debug' and 'Debug

-	Static' configurations on both 'x64' and 'win32' platforms.

-	Add `DLG_STATIC' for 'Debug' configuration on 'x64' and 'win32'

-	platforms.

-	(DisableLanguageExtensions): We need to disable the `/Za` option

-	when building 'dlg' with FreeType as 'dlg' strictly follows the C99

-	standard.  Visual C++ produces behaves unexpectedly when

-	compiling a C99 file with `/Za` option enabled.

-

-2020-11-30  Priyesh Kumar  <[email protected]>

-

-	[base] Add public API to change log handling function.

-

-	* include/freetype/ftlogging.h (FT_Custom_Log_Handler): New function

-	typedef to store the custom callback logging function.

-	(FT_Set_Log_Handler, FT_Set_Default_Log_Handler): New functions to

-	set and reset custom log handler.

-

-	* include/freetype/internal/ftdebug.h (custom_output_handler): New

-	variable to support a custom callback logging function.

-	(FT_Logging_Callback): A new function typedef to print log using

-	custom callback logging function, which is set using

-	`FT_Set_Log_Handler`.

-	(FT_Log): Use it.

-

-	* src/base/ftdebug.c (FT_Set_Log_Handler,

-	FT_Set_Default_Log_Handler, FT_Logging_Callback): Add function

-	definitions.

-

-2020-11-28  Priyesh Kumar  <[email protected]>

-

-	[base] Add public API to change the levels of tracing components.

-

-	* include/freetype/ftlogging.h: New header file.

-

-	* include/freetype/internal/ftdebug.h [FT_LOGGING]: Include

-	`ftlogging.h`.

-

-	* src/base/ftdebug.c (ft_custom_trace_level): New variable.

-	(ft_debug_init): Update to support change of levels of tracing

-	components of FreeType at run-time.

-	(FT_Trace_Set_Level): New function to change the levels of tracing

-	components at run-time.

-	(FT_Trace_Set_Default_Level): New function to reset the levels of

-	tracing components back to default.

-

-2020-11-28  Priyesh Kumar  <[email protected]>

-

-	[base] Updates to print timestamp and name of `FT_COMPONENT` in logs.

-

-	* include/freetype/internal/ftdebug.h (FT_LOGGING_TAG,

-	FT_LOGGING_TAG_): New macros to resolve the value of `FT_COMPONENT'

-	into a string.

-	(ft_add_tag, ft_remove_tag): New functions to add and remove dlg tags.

-

-	* src/base/ftdebug.c: Add new variables to control the logging of

-	timestamp and name of `FT_COMPONENT` along with actual logs.

-	(ft_add_tag, ft_remove_tag): Add function definitions.

-	(ft_log_handler): Updates to print timestamp and name of

-	`FT_COMPONENT`.

-	(ft_debug_init) [FT_LOGGING]: Users can now control the logging of

-	timestamp and name of `FT_COMPONENT` by adding tags in the

-	`FT2_DEBUG` environment variable.

-

-2020-11-27  Priyesh Kumar  <[email protected]>

-

-	[base] Add functions and variables to print logs to a file.

-

-	* include/freetype/internal/ftdebug.h: Added dlg's header files.

-	(FT_LOG): New macro to redirect trace logs to dlg's API's whenever

-	`FT_LOGGING' is defined.

-	(ft_logging_init, ft_logging_deinit): New functions to handle

-	initialization and uninitialization of logging related variables.

-	(ft_log_handler): New function to handle logs of FreeType.

-

-	* src/base/ftdebug.c: Add necessary logging related variables.

-	(ft_logging_init, ft_logging_deinit, ft_log_handler): Add function

-	definitions.

-

-	* src/base/ftinit.c (FT_Init_FreeType) [FT_LOGGING]: Call

-	`ft_logging_init`.

-	(FT_Done_FreeType) [FT_LOGGING]: Call `ft_logging_deinit`.

-

-	* src/base/ftobjs.c (FT_New_Library): Call `ft_debug_init` only if

-	`FT_LOGGING` is not defined.

-

-2020-11-27  Priyesh Kumar  <[email protected]>

-

-	[builds] Necessary changes to make 'dlg' compile.

-

-	* autogen.sh (copy_submodule_files): New script to copy all the

-	necessary source and include files from `submodules/dlg` to

-	`src/dlg`.

-

-	* src/dlg/dlgwrap.c: New wrapper file for `src/dlg.c`.  It enables

-	the build of 'dlg' if the `FT_LOGGING` macro is defined.

-

-	* src/dlg/rules.mk: New sub-Makefile.

-

-	* builds/freetype.mk (DLG_DIR): New variable to include the

-	header files of the 'dlg' library.

-	(INCLUDES): Add `DLG_DIR`.

-	(FT_CFLAGS): Add `-std=c99' flag.

-	Include `src/dlg/rules.mk` file to build 'dlg' library.

-	(OBJ_S, OBJ_M): Add `DLG_OBJS_M` and `DLG_OBJS_S`.

-

-	* builds/toplevel.mk: For builds directly from the git repository

-	we need to copy files from `submodule/dlg` to `src/dlg`.

-

-	* include/freetype/config/ftoption.h, devel/ftoption.h (FT_LOGGING):

-	New macro to enable or disable the logging facility in FreeType.

-

-2020-11-27  Priyesh Kumar  <[email protected]>

-

-	* .gitmodules: Add 'dlg' library's git repository as submodule.

-

-2020-12-01  Werner Lemberg  <[email protected]>

-

-	* src/tools/chktrcmp.py (trace_use_pat): Update to current use.

-

-2020-11-20  Alexei Podtelezhnikov  <[email protected]>

-

-	[cff,cid,type1] Demote old engine for lack of CFF2.

-

-	* src/cff/cffobjs.c (cff_driver_init): Always default to Adobe engine.

-	* src/cid/cidobjs.c (cid_driver_init): Ditto.

-	* src/type1/t1objs.c (T1_Driver_Init): Ditto.

-

-2020-11-09  Werner Lemberg  <[email protected]>

-

-	* src/type42/t42parse.c (t42_parse_sfnts): More tracing messages.

-

-2020-11-04  Werner Lemberg  <[email protected]>

-

-	* meson.build: Fix .pc file generation.

-

-	For backwards compatibility we need the libtool version, not the .so

-	number.

-

-	Reported by Nikolaus.

-

-2020-10-28  Werner Lemberg  <[email protected]>

-

-	[truetype] Minor update to forthcoming OpenType 1.8.4 standard.

-

-	* src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Limit

-	size of `regionCount`.

-

-2020-10-26  Werner Lemberg  <[email protected]>

-

-	* meson.build: Fix 'harfbuzz' and 'brotli' build options (#59347).

-

-	Without this patch, 'harfbuzz' and 'brotli' are always required.

-

-	Patch submitted anonymously in Savannah bug report.

-

-2020-10-23  Ben Wagner  <[email protected]>

-

-	* src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak (#59322).

-

-	The issue is that `rows` is allocated but will not be freed in the

-	event that the call to `png_read_image` fails and calls `longjmp`.

-

-2020-10-20  Werner Lemberg  <[email protected]>

-

-	* Version 2.10.4 released.

-	==========================

-

-

-	Tag sources with `VER-2-10-4'.

-

-	* docs/VERSION.TXT: Add entry for version 2.10.4.

-	* docs/CHANGES: Updated.

-

-	* README, src/base/ftver.rc, builds/windows/vc2010/index.html,

-	builds/windows/visualc/index.html,

-	builds/windows/visualce/index.html,

-	builds/wince/vc2005-ce/index.html,

-	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

-	s/2.10.3/2.10.4/, s/2103/2104/.

-

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

-

-	* builds/unix/configure.raw (version_info): Set to 23:4:17.

-	* CMakeLists.txt (VERSION_PATCH): Set to 4.

-

-2020-10-19  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix heap buffer overflow (#59308).

-

-	This is CVE-2020-15999.

-

-	* src/sfnt/pngshim.c (Load_SBit_Png): Test bitmap size earlier.

-

-2020-10-17  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/tt{colr,cpal}.c: Fix signedness warnings from VC++.

-

-2020-10-17  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (Read255UShort): Tweak types to please VC++.

-

-2020-10-10  Werner Lemberg  <[email protected]>

-

-	* Version 2.10.3 released.

-	==========================

-

-

-	Tag sources with `VER-2-10-3'.

-

-	* docs/VERSION.TXT: Add entry for version 2.10.3.

-

-	* README, src/base/ftver.rc, builds/windows/vc2010/index.html,

-	builds/windows/visualc/index.html,

-	builds/windows/visualce/index.html,

-	builds/wince/vc2005-ce/index.html,

-	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

-	s/2.10.2/2.10.3/, s/2102/2103/.

-

-	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.

-

-	* builds/unix/configure.raw (version_info): Set to 23:3:17.

-	* CMakeLists.txt (VERSION_PATCH): Set to 3.

-

-2020-09-25  Werner Lemberg  <[email protected]>

-

-	[autofit] Synchronize with ttfautohint.

-

-	This corresponds to the following commits in the ttfautohint git

-	repository:

-

-	  bb6842bd3bd437b7b4a7921b0376c860f5e73d18  Typo, formatting.

-	  d5c91ddb1cb310257a3dfe9a8e20e1fc51335faa  Add Medefaidrin script.

-

-	* src/autofit/afblue.dat: Add blue zone data for Medefaidrin.

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

-

-	* src/autofit/afscript.h: Add Medefaidrin standard characters.

-

-	* src/autofit/afranges.c, src/autofit/afstyles.h: Add Medefaidrin

-	data.

-

-2020-09-25  Werner Lemberg  <[email protected]>

-

-	Move `scripts/make_distribution_archives.py` to `src/tools`.

-

-	* scr/tools/scripts/make_distribution_archives.py: (_TOP_DIR,

-	_SCRIPT_DIR): Updated to new location.

-	(main): s/shutils.copyfile/shutils.copy/ to preserve file

-	permissions.

-	(main): Prefix source file paths with `git_dir` while copying files

-	to allow calls of the script from other places than the top-level

-	directory.

-

-2020-09-24  Werner Lemberg  <[email protected]>

-

-	* src/cff/cffgload.c (cff_slot_load): Scale `vertBearingY`.

-

-	Towards the end of the the function there is a call to

-	`FT_Outline_Get_CBox` that retrieves the glyph bbox in scaled units.

-	That sets `horiBearing{X,Y}` and `vertBearingX` but `vertBearingY`

-	is left alone, and is not scaled.

-

-	Patch from Eric Muller <[email protected]>.

-

-2020-09-24  Werner Lemberg  <[email protected]>

-

-	* src/base/ftobjs.c (FT_Load_Glyph): Trace glyph metrics.

-

-2020-09-22  Werner Lemberg  <[email protected]>

-

-	[meson] Move auxiliary scripts to `builds/meson`.

-

-	Suggested by Alexei.

-

-	* scripts/*.py: Move meson scripts to...

-	* builds/meson/*.py: ... this new location.

-

-	* meson.build: Updated.

-

-2020-09-21  David Turner  <[email protected]>

-

-	Add python script for building tarballs.

-

-	* scripts/make_distribution_archives.py: New file.

-

-	This standalone Python script should be equivalent to running `make

-	dist` with the Make-based build system, with the following minor

-	differences:

-

-	- Since `make distclean` doesn't always clean up `objs/` properly,

-	  `make dist` archives may contain some stale binaries like

-	  `objs/.libs/libfreetype.so.6` or others.

-

-	- `config.guess` and `config.sub` are not updated unless option

-	  `--gnu-config-dir=DIR` is used to specify the location of these

-	  files.

-

-	- Some bits of the auto-generated reference documentation may

-	  appear in slightly different order, probably due to issues related

-	  to mkdocs and docwriter.

-

-	As an example, the call

-

-	  scripts/make_distribution_archives.py /tmp/freetype2-dist

-

-	creates the following files under `/tmp/freetype2-dist`:

-

-	  freetype-<version>.tar.gz

-	  freetype-<version>.tar.xz

-	  ft<winversion>.zip

-

-2020-09-21  Werner Lemberg  <[email protected]>

-

-	* scripts/extract_freetype_version.py: Fix regex typos.

-

-2020-09-21  David Turner  <[email protected]>

-

-	Add Meson build project file.

-

-	Example usage:

-

-	  # Configure Meson build in directory `build-meson` to generate

-	  # release binaries comparable to to the ones from the

-	  # autotools/make build system.

-	  meson setup build-meson \

-	        --prefix=/usr/local \

-	        --buildtype=debugoptimized \

-	        --strip \

-	        -Db_ndebug=true

-

-	  # After configuring the Meson build with the above command,

-	  # compile and install to `/usr/local/`; this includes a pkg-config

-	  # file.

-	  ninja -C build-meson install

-

-	  # Alternatively, compile and install to `/tmp/aa/usr/local/...`

-	  # for packaging.

-	  DESTDIR=/tmp/aa ninja -C build-meson install

-

-	  # Generate documentation under `build-meson/docs`.

-	  ninja -C build-meson docs

-

-	Library size comparison for stripped `libfreetype.so` generated by

-	all three build systems:

-

-	  - Default build (autotools + libtool): 712 KiB

-	  - CMake build (RelWithDebInfo):        712 KiB

-	  - Meson build:                         712 KiB

-

-

-	* meson.build: New top-level Meson build file for the library.

-

-	* meson_options.txt: New file.  It holds user-selectable options for

-	the build, which can be printed with `meson configure`, and selected

-	at `meson setup` or `meson --reconfigure` time with

-	`-D<option>=<value>`.

-

-	* scripts/parse_modules_cfg.py: A script invoked by `meson.build` to

-	parse `modules.cfg` and extract important information out of it

-	(i.e., the list of modules).

-

-	* scripts/process_ftoption_h.py: New script invoked by `meson.build`

-	to process the original `ftoption.h` file.  It enables or disables

-	configuration macro variables based on the available dependencies.

-	This is similar to what other build systems are using (i.e., Meson's

-	`configure_file()` command is not used here).

-

-	* scripts/extract_freetype_version.py: New script invoked by

-	`meson.build` to extract the FreeType version number from

-	`<freetype/freetype.h>`.

-

-	* scripts/extract_libtool_version.py: New script invoked by

-	`meson.build` to extract the libtool `revision_info` data from

-	`builds/unix/configure.raw`, and to generate the corresponding

-	shared library suffix.

-

-	* scripts/generate_reference_docs.py: New script invoked by

-	`meson.build` to generate the FreeType 2 reference documentation

-	(using the `docwriter` and `mkdocs` packages, which must be already

-	installed).

-

-2020-09-11  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Improve the second pass (#58373).

-

-	Besides dropout control the second horizontal sweep is supposed to

-	clean up straight horizontal edges that are mishandled by the first

-	vertical sweep when a line passes through pixel centers.  This line

-	would present as perfectly aligned span edges in the second sweep.

-

-	* src/raster/ftraster.c (Horizontal_Sweep_Span): Replace the old

-	implementation with a better one focusing on aligned span edges only.

-

-2020-09-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Tune SMART macro (#58352).

-

-	Windows seems to perform smart dropout control at 26.6 precision.

-	To mimick Windows independent of increased precision, we need to tweak

-	the macro so that some close calls break down rather than up.

-

-	* src/raster/ftraster.c (SMART): Tweak the macro.

-

-2020-09-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Introduce SMART macro.

-

-	* src/raster/ftraster.c (SMART): New macro for smart dropout rounding.

-	(Verstical_Sweep_Drop, Horizontal_Sweep_Drop): Use it.

-

-2020-09-03  Boris Dalstein  <[email protected]>

-

-	[build] Make CMake install basic version information.

-

-	* CMakeLists.txt: Do it.

-

-2020-09-02  Alexei Podtelezhnikov  <[email protected]>

-

-	[truetype] Reduce Infinality footprint (cont'd).

-

-	* src/truetype/ttinterp.c (Ins_DELTAP): Shrink variable scope.

-	(Ins_SHPIX, Ins_MIRP): Revise if-logic.

-

-2020-09-02  Alexei Podtelezhnikov  <[email protected]>

-

-	[truetype] Reduce Infinality footprint.

-

-	* src/truetype/ttinterp.c (Ins_SHPIX, Ins_MSIRP, Ins_MIAP, Ins_MDRP,

-	Ins_MIRP): Shrink variable scopes and consolidate ifdefs.

-

-2020-09-01  Alexei Podtelezhnikov  <[email protected]>

-

-	[truetype] Refactor compensation color.

-

-	* src/truetype/ttinterp.h (TT_Round_Func): Change the last argument.

-	* src/truetype/ttinterp.c (Ins_ROUND, Ins_NROUND, Ins_MDAP, Ins_MIAP,

-	Ins_MDRP, Ins_MIRP): Move compensation retrieval from here...

-	(Round_*): ... to here.

-	* src/truetype/ttobjs.c (tt_size_init_bytecode): Reserve zero

-	compensation at color index 3.

-

-2020-08-28  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Don't set target in direct mode.

-

-	* src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Remove assignment.

-	(ft_smooth_raster_lcd) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Ditto.

-

-2020-08-25  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Limit width.

-

-	Segmentation fault reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24729

-

-2020-08-22  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgload.c (TT_Get_VMetrics): Add tracing message.

-

-2020-08-05  Alexei Podtelezhnikov  <[email protected]>

-

-	[truetype] Retain OVERLAP_SIMPLE and OVERLAP_COMPOUND.

-

-	For glyphs with OVERLAP_SIMPLE or OVERLAP_COMPOUND, set

-	FT_OUTLINE_OVERLAP to render them with direct oversampling, which

-	mitigates artifacts (see 3bb512bc9f62).

-

-	* include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Redefine to rhyme

-	with OVERLAP_SIMPLE.

-	* src/base/ftgloadr.c (FT_GlyphLoader_Rewind): Reset outline flags.

-	* src/truetype/ttgload.c

-	(TT_Load_Simple_Glyph): Retain OVERLAP_SIMPLE.

-	(load_truetype_glyph): Retain OVERLAP_COMPOUND.

-

-2020-08-04  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttgload.c (TT_Load_Glyph): More tracing.

-

-2020-07-28  Alexei Podtelezhnikov  <[email protected]>

-

-	Hide internal functions with SunPro.

-

-	* include/freetype/internal/compiler-macros.h

-	(FT_INTERNAL_FUNCTION_ATTRIBUTE) <__SUNPRO_C>: Define as __hidden.

-

-2020-07-28  Anuj Verma  <[email protected]>

-

-	Fix static compilation with Visual C.

-

-	* include/freetype/internal/compiler-macros.h

-	(FT_INTERNAL_FUNCTION_ATTRIBUTE) <_WIN32>: Define as empty.

-

-2020-07-28  Priyesh Kumar  <[email protected]>

-

-	Fix `-Wformat' compiler warnings.

-

-	* src/*: Fix format specifiers.

-

-	* builds/unix/ftsystem.c (FT_Stream_Open): Ditto.

-

-2020-07-25  Werner Lemberg  <[email protected]>

-

-	Fix `-Wformat' compiler warnings.

-

-	Problem reported by Priyesh kumar <[email protected]>

-

-	* src/base/ftoutln.c (FT_Outline_Decompose): Fix number of arguments

-	to tracing macro.

-

-	* src/bdf/bdfdrivr.c (bdf_cmap_char_next, bdf_get_bdf_property):

-	Ditto.

-

-	* src/cache/ftcbasic.c (ftc_basic_family_get_count): Ditto.

-	Reformulate message.

-

-	* src/pcf/pcfdrivr.c (pcf_get_bdf_property): Ditto.

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Ditto.

-	Trace table offset, too.

-

-	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Ditto.

-

-2020-07-23  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_decompress): Fix compiler warning.

-

-	Reported by Hin-Tak.

-

-2020-07-12  Werner Lemberg  <[email protected]>

-

-	* builds/unix/configure.raw: Fix inclusion of `ftoption.h'.

-

-2020-07-07  Werner Lemberg  <[email protected]>

-

-	Fix clang warnings.

-

-	* include/freetype/internal/autohint.h

-	(FT_DECLARE_AUTOHINTER_INTERFACE): New macro.

-	* src/autofit/afmodule.h: Use it to declare

-	`af_autofitter_interface'.

-

-	* include/freetype/internal/ftobjs.h (FT_DECLARE_GLYPH): New macro.

-	* src/base/ftbase.h: Use it to declare `ft_bitmap_glyph_class' and

-	`ft_outline_glyph_class'.

-

-	* src/base/ftglyph.c: Include `ftbase.h'.

-

-	* src/cff/cffparse.c (cff_parser_run): Fix type of `t2_size'.

-

-	* src/pcf/pcfdrivr.c (pcf_cmap_char_next): Fix type of `result'.

-

-	* src/psaux/psauxmod.c (psaux_module_class): Use `FT_DEFINE_MODULE'.

-	* src/psaux/psauxmod.h: Declare `afm_parser_funcs',

-	`t1_cmap_classes', `cff_decoder_funcs', and `psaux_module_class'.

-

-	* src/pshinter/pshmod.c: Include `pshmod.h'.

-

-	* src/sfnt/sfwoff2.c (ROUND4, WRITE_SHORT): Fix implicit sign

-	conversion.

-	(compute_ULong_sum): Fix return type.

-	Fix implicit sign conversion.

-	(store_points): Fix type of `last_flag', `repeat_count', and `flag'.

-	Use casts to avoid warnings.

-	(reconstruct_glyf): Fix implicit sign conversion.

-	Use cast to avoid warning.

-	(get_x_mins): Fix implicit sign conversion.

-	* src/sfnt/ttcmap.c: Undef `TTCMAPCITEM'.

-	* src/sfnt/ttcmap.h: Define `TTCMAPCITEM' and include `ttcmapc.h' to

-	declare cmap classes.

-

-	* src/smooth/ftsmooth.c (ft_smooth_overlap_spans): Use cast.

-

-	* src/truetype/ttinterp.c (Ins_MIAP): Fix typo.

-

-2020-07-07  David Turner  <[email protected]>

-

-	[build] Really fix multi and C++ builds.

-

-	The following builds were still failing due to previous changes:

-

-	  make multi

-	  make multi CC="c++"

-	  make CC="c++"

-

-	This patch fixes the issues, which were missing includes to get the

-	right macro definitions in multi-build mode.

-

-	Also, `FT_UNUSED' is actually used by third-party code, so move it

-	back to `public-macros.h' to avoid breaking it.

-

-	* include/freetype/config/public-macros.h (FT_EXPORT): Remove

-	special definition for C++.

-	(FT_UNUSED): Define here instead of...

-	* include/freetype/config/compiler-macros.h: ... here.

-	(FT_FUNCTION_DECLARATION): Remove special definition for C++.

-	(FT_LOCAL_ARRAY_DEF): Fix definition.

-

-	* src/cache/ftccback.h, src/lzw/ftzopen.h, src/gxvalid/gxvmort.h,

-	src/gxvalid/gxvmorx.h: Add `FT_BEGIN_HEADER' and `FT_END_HEADER'.

-

-2020-07-06  David Turner  <[email protected]>

-

-	[build] Fix multi and C++ builds.

-

-	The following builds were failing due to previous changes:

-

-	  make multi

-	  make multi CC="c++"

-

-	* include/freetype/config/ftconfig.h: Remove `FT_END_HEADER'.

-

-	* include/freetype/config/ftheader.h (FT_BEGIN_HEADER,

-	FT_END_HEADER): Protect against redefinition.

-

-	* src/cache/ftccache.h, src/cache/ftcmru.h, src/pcf/pcfutil.h,

-	src/psaux/pserror.h, src/psaux/psft.h, src/psaux/psstack.h,

-	src/sfnt/woff2tags.h: Include `compiler-macros.h'.

-

-	* src/sfnt/woff2tags.c: Include `woff2tags.h'.

-

-2020-07-06  Werner Lemberg  <[email protected]>

-

-	[psaux] Improve `t1_decoder_parse_metrics' (#58646).

-

-	* src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy

-	corresponding code from old engine's `t1_decoder_parse_charstrings'

-	function to handle `op_callsubr' and `op_return'.

-

-2020-07-05  David Turner  <[email protected]>

-

-	[build] Improve visibility support of library function names.

-

-	* include/freetype/config/public-macros.h

-	(FT_PUBLIC_FUNCTION_ATTRIBUTE): New macro to tag functions as

-	public (and thus exportable).

-	(FT_EXPORT): Use it.

-

-	* include/freetype/config/compiler-macros.h

-	(FT_INTERNAL_FUNCTION_ATTRIBUTE): New macro to tag functions as

-	internal to the library (and thus hidden).  Note that on ELF

-	systems, all internal functions have hidden visibility, which avoids

-	the need to enforce this when invoking the compiler (e.g., with an

-	option like `-fvisibility=hidden').

-

-	(FT_FUNCTION_DECLARATION, FT_FUNCTION_DEFINITION): New base macros

-	to deal with C and C++ linkage issues at the same time.

-

-	(FT_LOCAL, FT_LOCAL_DEF, FT_LOCAL_ARRAY, FT_LOCAL_ARRAY_DEF,

-	FT_BASE, FT_BASE_DEF, FT_EXPORT_VAR, FT_BASE_CALLBACK,

-	FT_BASE_CALLBACK_DEF): Redefined using new macros.

-

-2020-07-05  David Turner  <[email protected]>

-

-	[build] Split off more stuff from `ftconfig.h'.

-

-	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

-	include/freetype/config/ftconfig.h: Split off macro definitions

-	required by the FreeType API headers to...

-	* include/freetype/config/public-macros.h: ...this new file.

-

-	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

-	include/freetype/config/ftconfig.h: Split off macro definitions used

-	by the library but not to be exposed to clients to...

-	* include/freetype/config/compiler-macros.h: ...this new file.

-

-	* include/freetype/internal/*.h, src/raster/ftraster.h: Include

-	`compiler-macros.h' where needed.

-

-2020-07-05  David Turner  <[email protected]>

-

-	[build] Move mac support code to `mac-support.h'.

-

-	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

-	include/freetype/config/ftconfig.h: Split off mac-specific stuff

-	to...

-	* include/freetype/config/mac-support.h: ...this new file.

-

-	* CMakeLists.txt, builds/unix/configure.raw: Remove `/undef ->

-	#undef' string replacement; the affected code is no longer part of

-	the `ftconfig.h' template.

-

-2020-07-05  David Turner  <[email protected]>

-

-	[build] Put integer type definitions into `integer-types.h'.

-

-	Refactor some of the `ftconfig.h' headers and template to move the

-	definition of the FreeType integer types (e.g., `FT_Int16') to a

-	common header file `freetype/config/integer-types.h'.

-

-	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

-	include/freetype/config/ftconfig.h: Split off integer type

-	definition stuff to...

-	* include/freetype/config/integer-types.h: ...this new file.

-

-	* builds/unix/ftconfig.h.in: Control the definition of

-	`FT_SIZEOF_INT' and `FT_SIZEOF_LONG' with macro

-	`FT_USE_AUTOCONF_SIZEOF_TYPES'.  If these are not defined, auto

-	detection happens in `integer-types.h' as usual based on `INTXX_MAX'

-	values.  Otherwise the autoconf-detected values are used.

-

-	* builds/unix/configure.raw (CPPFLAGS): Don't include path to

-	`config' directory.  Instead, ...

-	(FT_CONFIG_STANDARD_LIBRARY_H): Use complete path.

-

-2020-07-05  David Turner  <[email protected]>

-

-	[build] Rename `build/unix/ftconfig.in' to `ftconfig.h.in'.

-

-	Since we are no longer limited to 8.3 file names, it is simpler to

-	follow the usual conventions for template files.

-

-	* builds/unix/ftconfig.in: Renamed to...

-	* builds/unix/ftconfig.h.in: ...this.

-

-	* CMakeLists.txt, builds/unix/configure.raw: Updated.

-

-2020-07-03  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Introduce direct oversampling for overlaps.

-

-	This implements oversampling to mitigate artifacts in pixels partially

-	covered by overlapping contours.  It turns out that the 4x4

-	oversampling is sufficient but, at least, quadruples the rendering

-	time.  The outline has to set FT_OUTLINE_OVERLAP to use this method.

-

-	* include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): New flag.

-	* src/smooth/ftsmooth.c (ft_smooth_render): Check it to...

-	(ft_smooth_raster_overlap): ... inflate outline and set up direct

-	rendering for oversampling with...

-	(ft_smooth_overlap_spans): ... new span function that integrates them.

-

-2020-07-03  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Use direct rendering mode in Harmony.

-

-	Instead of rendering 3 bitmaps side by side and reshuffling, we use

-	direct rendering to deliver the bitmaps on each third byte.

-

-	* src/smooth/ftsmooth.c (ft_smooth_raster_lcd)

-	[!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Set up direct mode with...

-	(ft_smooth_lcd_spans): ... new span function.

-

-2020-07-03  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Separate LCD paths from gray rendering.

-

-	This makes `ft_smooth_render' a lot smaller and easier to follow. It

-	also cleanly separates Harmony and ClearType-style LCD rendering

-	algorithms. Now I only wish to move LCD filtering and geometry from

-	FT_Library to FT_Renderer.

-

-	* src/smooth/ftsmooth.c (ft_smooth_render): Move LCD code from here...

-	(ft_smooth_raster_lcd, ft_smooth_raster_lcdv): ... to here.

-	[FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Reorganize #ifdef's.

-

-2020-06-20  Sebastian Rasmussen  <[email protected]>

-

-	[cff] Fix handling of `style_name == NULL' (#58630).

-

-	* src/cff/cffobjs.c (cff_face_init): If a call to `cff_strcpy' fails

-	by returning NULL in `cff_face_init', `remove_style' is still

-	called.  This means that the NULL pointer is dereferenced, causing a

-	crash.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[cff] Fix another two memory leaks (#58629).

-

-	* src/cff/cffobjs.c (cff_size_init): If a call to `funcs->create'

-	fails to allocate one of the `internal->subfont' variables, make

-	sure to free `internal->topfont' and any successfully allocated

-	subfonts.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[psaux] Fix memory leak (#58626).

-

-	* src/psaux/psstack.c (cf2_stack_init): If `cf2_stack_init' fails to

-	allocate the stack, return error early.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[base] Fix memory leak (#58624).

-

-	* src/base/ftobjs.c (FT_New_Size): Avoid trying to free

-	`size->internal' unless `size' has been allocated.  This mistake

-	appeared in the fix for issue #58611.

-

-2020-06-19  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] Rework d1180b5f9598 until further notice.

-

-	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Reject large

-	outlines.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[cff, cid] Fix segfaults in case of error (#58621).

-

-	* src/cff/cffobjs.c (cff_slot_done), src/cid/cidobjs.c

-	(cid_slot_done): If `ft_glyphslot_init' fails to allocate

-	`internal', then the class' `done_slot' callback (called by

-	`ft_glyphslot_done') must not dereference the pointer to `internal'.

-

-2020-06-19  Werner Lemberg  <[email protected]>

-

-	[base] Fix UBSAN error.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23166

-

-	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Avoid values

-	larger than 32 bits.

-

-2020-06-19  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix segfault.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23402

-

-	* src/sfnt/sfwoff2.c (get_x_mins): Check whether `loca' table

-	exists.

-

-2020-06-19  Stephen McDowell  <[email protected]>

-

-	[sfnt] Support Intel compilers.

-

-	* src/sfnt/pngshim.c (premultiply_data): Intel compilers do not

-	currently support `__builtin_shuffle'.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[base] Fix memory leak (#58611).

-

-	* src/base/ftobjs.c (FT_New_Size): When the call to `clazz->init_size'

-	fails, make sure to free `size->internal'.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[cff] Fix memory leak (#58610).

-

-	* src/cff/cffobjs.c (cff_size_init): When the call to

-	`funcs->create' fails, make sure to free `internal'.

-

-2020-06-19  Werner Lemberg  <[email protected]>

-

-	* src/cff/cffload.c (cff_index_get_pointers): Rename `t' to `tbl'.

-

-2020-06-19  Sebastian Rasmussen  <[email protected]>

-

-	[cff] Free table upon error allocating other data (#58609).

-

-	* src/cff/cffload.c (cff_index_get_pointers): When new_bytes fails

-	to allocate, make sure to free the table.  Do the same for both

-	allocations if there is a later error.

-

-2020-06-13  Werner Lemberg  <[email protected]>

-

-	Remove redundant inclusion of `ft2build.h'.

-

-	* */*: Remove `#include <ft2build.h>' where possible.

-

-	* include/freetype/freetype.h: Remove cpp error about missing

-	inclusion of `ft2build.h'.

-

-2020-06-08  David Turner  <[email protected]>

-

-	Make macros for header file names optional.

-

-	We no longer have to take care of the 8.3 file name limit; this

-	allows us (a) to introduce longer, meaningful file names, and (b) to

-	avoid macro names in `#include' lines altogether since some

-	compilers (most notably Visual C++) doesn't support this properly.

-

-	*/*: Replace

-

-	   #include FOO_H

-

-	with

-

-	   #include <freetype/foo.h>

-

-	or something similar.  Also update the documentation.

-

-2020-06-02  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/ttcmap.c (tt_face_build_cmaps): Trace number of cmaps.

-

-2020-05-18  David Turner  <[email protected]>

-

-	Remove obsolete HAVE_STDINT_H probing macro.

-

-	This macro was updated by the unix configure script and the

-	`CMakeLists.txt' one, but is never used in the source tree (nor is

-	<stdint.h> included anywhere).

-

-	* CMakeLists.txt, builds/unix/ftconfig.in: Don't handle

-	`HAVE_STDINT_H'.

-

-2020-05-18  David Turner  <[email protected]>

-

-	Remove Jamfile files from the tree.

-

-	These have not been used in a very, very long time, so better remove

-	them.  A corresponding patch will be submitted to the

-	`freetype2-demos' repository.

-

-	* src/Jamfile, src/*/Jamfile, Jamrules: Delete.

-

-2020-05-12  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Turn on LCD filtering during FreeType initialization.

-

-	* src/smooth/ftsmooth.c (ft_smooth_init): Enable LCD filtering.

-

-	* include/freetype/ftlcdfil.h: Document it, remove patent warnings.

-	* include/freetype/freetype.h (FT_Render_Mode): Updated.

-	* include/freetype/config/ftoption.h, devel/ftoption.h

-	[FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Do not mention patents.

-

-2020-05-11  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Stop using dedicated LCD modules and classes.

-

-	The LCD modules were never truly independent. They mostly served as

-	a way to disable patented LCD rendering, which is no longer necessary.

-	The `smooth' module now handles LCD modes as well.

-

-	* src/smooth/ftsmooth.c (ft_smooth_lcd_renderer_class.

-	ft_smooth_lcdv_renderer_class): Deleted.

-	(ft_render_smooth): Reworked from `ft_render_smooth_generic'.

-	* src/smooth/ftsmooth.h: Remove dedicated LCD classes.

-	* src/smooth/module.mk: Remove dedicated LCD modules.

-	* include/freetype/config/ftmodule.h: Ditto.

-	* builds/amiga/include/config/ftmodule.h: Ditto.

-	* include/freetype/ftmodapi.h: Do not mention LCD modules.

-

-2020-05-09  Werner Lemberg  <[email protected]>

-

-	* Version 2.10.2 released.

-	==========================

-

-

-	Tag sources with `VER-2-10-2'.

-

-	* docs/VERSION.TXT: Add entry for version 2.10.2.

-

-	* README, Jamfile (RefDoc), src/base/ftver.rc,

-	builds/windows/vc2010/index.html, builds/windows/visualc/index.html,

-	builds/windows/visualce/index.html,

-	builds/wince/vc2005-ce/index.html,

-	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

-	s/2.10.1/2.10.2/, s/2101/2102/.

-

-	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.

-

-	* builds/unix/configure.raw (version_info): Set to 23:2:17.

-	* CMakeLists.txt (VERSION_PATCH): Set to 2.

-

-	* docs/CHANGES: Updated.

-

-2020-05-08  Jakub Alba  <[email protected]>

-

-	* src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#58319).

-

-	The font that exceeds the old limit is Icono Regular, version

-	1.00000.

-

-2020-05-03  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/freetype.mk: Refactor for readability.

-

-2020-05-02  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds] Clean up Windows CE project files.

-

-	Remove version from filenames that caused a lot of polution in the

-	release process. Use VERSIONINFO resource instead.

-

-	* builds/wince/vc2005-ce/freetype.vcproj,

-	builds/wince/vc2008-ce/freetype.vcproj,

-	builds/windows/visualce/freetype.vcproj,

-	builds/windows/visualce/freetype.dsp: s/2101//g, but add `ftver.rc'.

-	* builds/wince/vc2008-ce/index.html,

-	builds/wince/vc2005-ce/index.html,

-	builds/windows/visualce/index.html: s/2101//g.

-

-2020-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	* devel/ft2build.h: Override FT_CONFIG_MODULES_H here as well.

-

-2020-05-01  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds/unix] Consolidate marco overrides (for the demos to see them).

-

-	* builds/unix/unix-cc.in (FT_CONFIG_MODULES_H, FT_CONFIG_OPTIONS_H):

-	Override them here...

-	* builds/freetype.mk: ... instead of here.

-

-2020-04-08  Werner Lemberg  <[email protected]>

-

-	Allow setting `CC' in Unix build (#58051).

-

-	* builds/unix/unix-cc.in (CC): Use `override'.  The command line

-	  value of `CC' (if any) is stored already in `CCraw'.

-

-2020-04-04  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Return if single stream operation fails.

-

-	* src/sfnt/sfwoff2.c (get_x_mins): Do it.

-

-	* src/sfnt/woff2tags.c: Remove unused include.

-

-2020-03-22  Nikhil Ramakrishnan  <[email protected]>

-

-	[docs] Fix building docs if `srcdir' != `builddir'.

-

-	`docs/reference/*' was moved one directory up in commit 237fed6.

-

-	* builds/unix/unix-def.in (PIP): Remove variable.

-

-	* configure: Create `docs' directory and copy assets from

-	`docs/markdown'.

-

-	* docs/README: Output directory is `reference'.

-

-2020-03-21  Nikhil Ramakrishnan  <[email protected]>

-

-	[docwriter] Drop support for Python < 3.5.

-

-	Python versions < 3.5 have reached end-of-life and as such, no

-	security or bug fixes will be provided for those versions.  See

-

-	  https://devguide.python.org/#status-of-python-branches

-

-	for more information.

-

-	* Jamfile (RefDoc): Add `site' parameter.

-

-	* builds/detect.mk (std_setup): Update Python version requirement.

-

-	* builds/freetype.mk (refdoc-venv): Use pip as `python -m pip'.

-

-	* builds/unix/ax_compare_version.m4,

-	builds/unix/ax_prog_python_version.m4: Macros to detect Python

-	version.  New files.

-

-	* builds/unix/configure.raw: Check for Python >= 3.5 and remove

-	check for `pip'.

-

-	* docs/CHANGES, docs/INSTALL.GNU, docs/README: Updated.

-

-2020-03-02  Moazin Khatti  <[email protected]>

-

-	[gzip] Support `gzip' encoded header conditionally.

-

-	In order to support `gzip' encoded header the call to

-	`inflateInit2' was modified in commit 6a92b1fadde26477a9179.

-	However, this code breaks with the outdated internal version

-	of zlib.  This is a temporary fix to conditionally support

-	`gzip' encoded header whenever a system installation of zlib

-	is being used.

-

-	Problem report in

-

-	  https://lists.nongnu.org/archive/html/freetype-devel/2020-02/msg00023.html

-

-	* src/gzip/ftgzip.c (FT_Gzip_Uncompress): Change the the call to

-	`inflateInit2' depending on whether the system installation is

-	being used or the internal copy.

-

-2020-02-29  Ben Wagner  <[email protected]>

-

-	[truetype] Fix state of `FT_Face' for buggy `gvar' tables (#57923).

-

-	By resetting the blend as implemented with this commit fonts with

-	invalid `gvar' tables may keep calling into `ft_var_load_gvar' from

-	`tt_set_mm_blend' and failing, but the font was invalid anyway and

-	we want to keep seeing the failure in `tt_set_mm_blend'.

-

-	* src/truetype/ttgxvar.c (ft_var_load_gvar): Calculate length of

-	offset array once.

-	Allocate arrays after `FT_FRAME_ENTER' (extra check before

-	allocating and avoid needing to free array later if error entering

-	frame).

-	Always call `FT_FRAME_EXIT'.

-	Consistently set counts immediately after array initialized.

-	Reset the blend (particularly `blend->glyphoffsets') on failure.

-

-2020-03-01  Nikhil Ramakrishnan  <[email protected]>

-

-	[docs] Update docwriter stylesheet.

-

-	This change is required to support docwriter 1.2.1.

-

-	See

-

-	  https://github.com/freetype/docwriter/issues/36

-

-	for more information.

-

-	* docs/markdown/stylesheets/extra.css:

-	(.md-typeset code) -> (.md-typeset pre>code)

-	(pre) -> (pre>code)

-	(p, .md-typeset p, h4): Remove commented styles.

-	(table.index): Remove unused styles.

-

-2020-02-28  Ben Wagner  <[email protected]>

-

-	[truetype] Add better checks for loading `gvar' table (#57905).

-

-	* src/truetype/ttgxvar.c (ft_var_load_gvar): Delay settings of any

-	`blend->xxxcount' values until the corresponding data has been

-	checked.

-	Also do some sanitizing to avoid a too early exit.

-

-	(TT_Vary_Apply_Glyph_Deltas): Improve tracing message.

-

-2020-02-27  Werner Lemberg  <[email protected]>

-

-	Make `FT_HAS_*' and `FT_IS_*' really return true (#57906).

-

-	* include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Implement it.

-

-2020-02-25  Dominik Röttsches  <[email protected]>

-

-	Fix for CFF space glyph regression (#57541).

-

-	* src/psaux/psft.c (cf2_decoder_parse_substrings): Replace early-out

-	  with FT_OFFSET.

-

-2020-02-22  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix font table access.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20778

-

-	* src/sfnt/sfwoff2.c (get_x_mins): Explicitly check for presence of

-	`head' table, which might not have been processed yet.

-

-2020-02-21  Werner Lemberg  <[email protected]>

-

-	[psaux] Make `t1_decoder_parse_metrics' handle `op_div' (#57519).

-

-	* src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy

-	corresponding code from old engine's `t1_decoder_parse_charstrings'

-	function.

-

-2020-02-19  Nikolaus Waxweiler  <[email protected]>

-

-	[autofit] Add support for Hanifi Rohingya script.

-

-	* src/autofit/afblue.dat: Add blue zone data for Hanifi Rohingya.

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

-

-	* src/autofit/afscript.h: Add Hanifi Rohingya standard character.

-

-	* src/autofit/afranges.c, src/autofit/afstyles.h: Add Hanifi

-	  Rohingya data.

-

-2020-02-19  Werner Lemberg  <[email protected]>

-

-	Require HarfBuzz 1.8.

-

-	* builds/unix/configure.raw, CMakeLists.txt: Request HarfBuzz 1.8.0

-	or newer.

-

-	We are going to add auto-hinter support for Hanifi Rohingya, which

-	was introduced in Unicode 11.0.

-

-2020-02-12  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/ttcmap.c (tt_face_build_cmaps): Ignore version (#57708).

-

-2020-02-04  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#57732).

-

-	The font that exceeds the old limit is Constantine, version 1.001.

-

-2020-01-04  Werner Lemberg  <[email protected]>

-

-	[base] Fix `FREETYPE_PROPERTIES=type1:hinting-engine=adobe`.

-

-	* src/base/ftpsprop.c (ps_property_set) [hinting-engine]: Avoid an

-	incorrect return value that caused a warning.  The function did the

-	right thing, though.

-

-2020-01-03  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix memory leaks and a runtime warning.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19773

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18101

-

-	* src/sfnt/sfwoff2.c (compute_ULong_sum): Add missing cast.

-	(reconstruct_hmtx): Add missing deallocation calls.

-

-2020-01-02  Dominik Röttsches  <[email protected]>

-

-	[truetype] Fix UBSan warning on offset to nullptr (#57501).

-

-	* src/truetype/ttinterp.c (Ins_CALL): Fail if `exc->FDefs' is null.

-

-2019-12-31  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Allow bitmap-only fonts (#57394).

-

-	* src/sfnt/sfwoff2.c (reconstruct_font): Fix test for `glyf' and

-	`loca' tables.

-

-2019-12-21  Hugh McMaster  <[email protected]>

-

-	[docs] (2/2) Fix generation of API documentation (#56745).

-

-	Creating the API Reference in the (new) `reference' sub-directory is

-	consistent with other documentation sub-topics, such as `design',

-	`glyphs' and `tutorial'.

-

-	This patch fixes broken hyperlinks in the documentation pointing to

-	and from the API Reference.  It also allows web assets to load from

-	their relative paths.

-

-	* builds/freetype.mk (DOC_DIR): Adjust.

-	(refdoc, refdoc-venv): Add `--site' argument.

-

-	* builds/toplevel.mk (do-dist): Updated.

-

-2019-12-21  Hugh McMaster  <[email protected]>

-

-	[docs] (1/2) Move static web assets (#56745).

-

-	* docs/reference/*: Move ...

-	* docs: ... one directory up.

-

-2019-12-21  Dominik Röttsches  <[email protected]>

-

-	Fix more UBSan warnings on adding offset to nullptr (#57432).

-

-	* src/truetype/ttinterp.c (Ins_LOOPCALL), src/psaux/psft.c

-	(cf2_initLocalRegionBuffer): Use `FT_OFFSET'.

-

-2019-12-16  Werner Lemberg  <[email protected]>

-

-	[truetype] Fix UBSan warnings on adding offsets to nullptr.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/chromium/issues/detail?id=1032152

-

-	* src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Use `FT_OFFSET'.

-

-2019-12-14  Werner Lemberg  <[email protected]>

-

-	[truetype] Fix integer overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19305

-

-	* src/truetype/ttinterp.c (Ins_MIRP): Use `ADD_LONG'.

-

-2019-12-13  Werner Lemberg  <[email protected]>

-

-	Another bunch of UBSan warnings on adding offsets to nullptr.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19427

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19433

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19441

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19451

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19452

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19457

-

-	* src/autofit/aflatin.c (af_latin_hints_compute_segments,

-	af_latin_hints_compute_edges): Use `FT_OFFSET'.

-

-	* src/base/ftstream.c (FT_Stream_EnterFrame): Use `FT_OFFSET'.

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Exit early

-	if there is no charstring.

-

-	* src/psaux/psobjs.c (t1_decrypt): Use `FT_OFFSET'.

-

-	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Exit early for

-	zero bitmap dimensions.

-

-2019-12-09  Dominik Röttsches  <[email protected]>

-

-	Fix more UBSan warnings on adding offset to nullptr (#57384).

-

-	* src/smooth/ftsmooth.c (ft_smooth_render_generic),

-	src/psaux/psobjs.c (ps_table_add): Use `FT_OFFSET'.

-

-2019-12-05  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttinterp.c (TT_RunIns): Use `FT_OFFSET'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/chromium/issues/detail?id=1030614

-

-2019-12-03  Werner Lemberg  <[email protected]>

-

-	More nullptr offset UBSan warnings (#57331, #57347).

-

-	* src/autofit/afcjk.c (af_cjk_hints_compute_segments),

-	src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c

-	(Ins_UNKNOWN): Use `FT_OFFSET'.

-

-2019-11-29  Dominik Röttsches  <[email protected]>

-

-	Avoid more nullptr offset UBSan warnings (#57316).

-

-	* src/base/ftoutln.c (FT_Outline_Transform): Bail on empty points.

-	* src/cff/cffload.c (cff_subfont_load): Use `FT_OFFSET'.

-	* src/psaux/psft.c (cf2_decoder_parse_substrings): Early out if

-	`charstring_base' or `charstring_len' are null.

-	* src/sfnt/ttload.c (tt_face_load_name): Use `FT_OFFSET'.

-

-2019-11-23  John Stracke  <[email protected]>

-

-	[base] Really fix #57194.

-

-	Apply accidentally missed second part of patch.

-

-	* src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Call

-	`FT_GlyphLoader_CreateExtra'.

-

-2019-11-23  Werner Lemberg  <[email protected]>

-

-	[truetype] Avoid sanitizer warning (#57289).

-

-	* src/truetype/ttpload.c (tt_face_get_device_metrics): Use

-	`FT_OFFSET'.

-

-2019-11-23  Armin Hasitzka  <[email protected]>

-

-	[truetype] Fix integer overflow (#57287).

-

-	* src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.

-

-2019-11-23  Ben Wagner  <[email protected]>

-

-	[sfnt] Avoid sanitizer warning (#57286).

-

-	* src/sfnt/ttcmap.c (tt_face_build_cmaps): Avoid possible `NULL +

-	offset' computation.

-	Tag `table' as `const'.

-

-2019-11-23  John Stracke  <[email protected]>

-            Werner Lemberg  <[email protected]>

-

-	[base] Fix `NULL + offset' sanitizer warnings (#57194).

-

-	* src/base/ftgloadr.c (FT_GlyphLoader_Adjust_Points,

-	FT_GlyphLoader_Adjust_Subglyphs): Use `FT_OFFSET'.

-	(FT_GlyphLoader_CreateExtra): Add short cut if some values are zero.

-

-2019-11-23  Werner Lemberg  <[email protected]>

-

-	* include/freetype/internal/ftmemory.h (FT_OFFSET): New macro.

-

-	Use this for `base + offset' pointer calculations where `base' can

-	be NULL (triggering a sanitizer warning even if the resulting

-	pointer gets never dereferenced since it is undefined behaviour

-	in C).

-

-	Suggested by Ben Wagner.

-

-2019-11-23  Ben Wagner  <[email protected]>

-

-	[sfnt] Ensure OTTO fonts have tables (#57285).

-

-	* src/sfnt/ttload.c (tt_face_load_font_dir): Add test.

-

-2019-11-23  Behdad Esfahbod  <[email protected]>

-

-	Minor fixes for recent compilers.

-

-	* src/gzip/infutil.h (inflate_mask): Add `const'.

-

-	* src/autofit/aflatin2.c: Include `ft2build.h'.

-

-2019-11-07  Nikolaus Waxweiler  <[email protected]>

-

-	* CMakeLists.txt: Minor additions to the notes, compile

-	  builds/unix/ftsystem.c instead of src/base/ftsystem.c on UNIX.

-

-	The latter change is based on the code proposed by rim in #55235.

-

-2019-10-25  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Check `num_fonts' for TTCs.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18494

-

-2019-10-22  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Avoid undefined shift.

-

-	Also improve tracing.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18390

-

-2019-10-10  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/pngshim.c (premultiply_data): Optimize for __SSE__ only.

-

-2019-10-10  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (reconstruct_glyf): Check `triplet_size'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18108

-

-2019-10-09  John Tytgat  <[email protected]>

-

-	[cff] Fix FT_FACE_FLAG_GLYPH_NAMES for CFF2 based fonts (#57023).

-

-	* src/cff/cffobjs.c (cff_face_init): Don't set

-	FT_FACE_FLAG_GLYPH_NAMES for CFF2 based fonts.

-

-2019-10-08  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix SFNT table checks.

-

-	Also reduce number of SFNT table lookups.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18065

-

-	* include/freetype/internal/wofftypes.h (WOFF2_InfoRec): Add fields

-	`glyf_table', `loca_table', and `head_table'.

-

-	* src/sfnt/sfwoff2.c (reconstruct_glyf): Update signature.

-	Use table pointers in `info' parameter.

-	(get_x_mins): Check `maxp_table'

-	Use table pointers in `info' parameter.

-	(reconstruct_font):  Use and set table pointers in `info' parameter.

-	Fix check for `glyf' and `loca' tables.

-	Update call to `reconstruct_glyf'.

-	(woff2_open_font): Updated.

-

-2019-10-06  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (reconstruct_glyf): Fix reallocation.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18046

-

-2019-10-06  Werner Lemberg  <[email protected]>

-

-	Improve memory debugging.

-

-	* include/freetype/internal/ftmemory.h (FT_MEM_FREE): Use

-	`FT_DEBUG_INNER' to set source code file name and line.

-

-	* src/base/ftdbgmem.c (ft_mem_table_remove): Better formatting of

-	tracing message.

-

-2019-10-03  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2 (reconstruct_font): Fix reallocation.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17966

-

-2019-10-01  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftstroke.c (ft_stroker_inside): Speed up.

-

-2019-10-01  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2 (woff2_open_font): Initialize `woff2.ttc_fonts'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17804

-

-2019-09-30  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (reconstruct_font): Fix memory leak.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17812

-

-2019-09-30  Werner Lemberg  <[email protected]>

-

-	[woff2] Reject fonts without `head' table.

-

-	Also fix memory deallocation in case of error.

-

-	`head' problem reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17820

-

-	* src/sfnt/sfwoff2.c (reconstruct_glyf): Don't use `stream_close'.

-	Abort if `head_table' is NULL.

-	Don't free `transformed_buf' in case of error.

-	(woff2_open_font): Don't set `uncompressed_buf' to NULL.

-

-2019-09-29  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix compiler warnings.

-

-	Problem reported by Alexei.

-

-	* src/sfnt/sfwoff2.c (reconstruct_glyf): Initialize `x_min'.

-	(reconstruct_font): Initialize `num_hmetrics'.

-	(woff2_open_font): Initialize `info'.

-

-2019-09-28  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Fix sanity check.

-

-	Correct thinkos in patch from 2019-09-01.

-

-2019-09-28  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix memory leaks.

-

-	One of them reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17766

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Free `info->x_mins' and

-	`woff2->ttc_fonts'.

-

-	(reconstruct_glyf): Initialize `info->x_mins'.

-

-2019-09-27  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftstroke.c (ft_stroker_cap): Speed up caps.

-

-2019-09-25  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftstroke.c (ft_stroker_outside): Speed up clipped miter.

-	* include/freetype/ftstroke.h: Wordsmith miter docs.

-

-2019-09-25  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Check (sum of) table sizes.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17684

-

-2019-09-23  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftstroke.c (ft_stroke_border_arcto): Speed up calculations.

-

-2019-09-20  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Fix memory leaks.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16896

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Fix error handling.

-	Free `uncompressed_buf'.

-	(reconstruct_font): Free `transformed_buf'.

-

-2019-09-17  Werner Lemberg  <[email protected]>

-

-	* src/otvalid/otvcommon.c (otv_Coverage_get_last): Guard `count'.

-

-	Problem reported by Marc Schönefeld <[email protected]>.

-

-2019-09-17  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Check table index.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17100

-

-2019-09-15  Avi Halachmi (:avih)  <[email protected]>

-

-	[cmake] Don't fail if brotli is missing (#56894).

-

-	The libs which cmake controls are commented out at

-

-	  include/freetype/config/ftoption.h

-

-	and cmake un-comment each enabled library, but the brotli option was

-	not commented out, therefore `FT_CONFIG_OPTION_USE_BROTLI' remained

-	defined even if brotli was missing/disabled/etc.

-

-	Comment it such that cmake can control it, which means leaving it

-	undefined if brotli is missing.

-

-	* include/freetype/config/ftoption.h: Fix typo.

-

-2019-09-05  Werner Lemberg  <[email protected]>

-

-	[cmake] Add brotli support.

-

-	* CMakeLists.txt (FT_WITH_BROTLI): New option.

-

-	* builds/cmake/FindBrotliDec.cmake: New file.

-

-2019-09-05  Werner Lemberg  <[email protected]>

-

-	Fix handling of `AF_CONFIG_OPTION_INDIC'.

-

-	* devel/ftoption.h, include/freetype/config/ftoption.h:

-	`AF_CONFIG_OPTION_INDIC' needs `AF_CONFIG_OPTION_CJK'.

-

-2019-09-05  Werner Lemberg  <[email protected]>

-

-	CMakeLists.txt: Fix generation of DLL related stuff (#56852).

-

-	Extract `version_info' variable from `builds/unix/configure.raw' and

-	use the data to correctly set `LIBRARY_VERSION' and

-	`LIBRARY_SOVERSION'.

-

-	Also use the data to set `ft_version' field in `freetype2.pc'.

-	Also fix the needed minimum version of HarfBuzz in `freetype2.pc'.

-

-2019-09-03  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (compute_ULong_sum): Fix undefined shift.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16933

-

-2019-09-01  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Add sanity check.

-

-	Don't trust `totalSfntSize' unconditionally.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16893

-

-2019-08-27  Dominik Röttsches  <[email protected]>

-

-	[woff2] Don't use `FT_UInt64' (#56815).

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Use `FT_UInt32' for

-	`file_offset'.  This fixes builds on platforms where `FT_LONG64' is

-	not defined while still being sufficient to store a file offset.

-

-2019-08-27  Werner Lemberg  <[email protected]>

-

-	[truetype] Prevent crash in `TT_Set_Named_Instance' (#56813).

-

-	* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Fix error

-	handling.

-

-2019-08-27  Werner Lemberg  <[email protected]>

-

-	[woff2] Fix compiler warnings.

-

-	* src/sfnt/sfwoff2.c (read_num_hmetrics): Remove unused argument

-	`table_len'.

-	Update caller.

-	(triplet_decode, compute_bbox, store_loca, reconstruct_glyf): Make

-	`i' variable unsigned.

-	(reconstruct_glyph): Remove condition which is always false.

-	(reconstruct_html): Removed unused argument `transformed_size'.

-	Update caller.

-

-	* src/sfnt/woff2tags.c (woff2_known_tags): Remove condition which is

-	always false.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Check whether known tag is in array bounds.

-

-	If table tag is not 0x3f, we expect a value between 0 and 62.  If

-	this is not the case, exit with errors.

-

-	* src/sfnt/sfwoff2/c: Check whether table tag makes sense.

-

-	* src/sfnt/woff2tags.c: Return 0 if tag is out of bounds.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	* src/sfnt/sfwoff2.c: Improve trace comments.

-

-	Adjust tracing levels for comments, and more formatting.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Support `hmtx' reconstruction when `glyf' is untransformed.

-

-	`reconstruct_hmtx' requires `info->x_mins' and `info->num_glyphs' to

-	reconstruct the hmtx table.  In case glyf is not transformed, we

-	call `get_x_mins' which does the necessary work.

-

-	* src/sfnt/sfwoff2.c (get_x_mins): New function.

-	(reconstruct_font): Call get_x_mins.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[sfnt] Support `face->num_faces' for WOFF2 fonts.

-

-	Set correct value of `face->num_faces' for WOFF2 fonts.  This is

-	being handled separately because we only load the tables for the

-	requested font face in `woff2_open_font' and create a single-face

-	sfnt stream.

-

-	The full discussion is at:

-

-	  https://lists.gnu.org/archive/html/freetype-devel/2019-08/msg00000.html

-

-	* src/sfnt/sfobjs.c (sfnt_open_font): Add parameter

-	`woff2_num_faces'.

-	(sfnt_init_face): Introduce variable `woff2_num_faces', and change

-	`face->root.num_faces' if `woff2_num_faces' is set.

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Validate requested face

-	index and handle negative face indices.

-

-	* src/sfnt/sfwoff2.h (woff2_open_font): Add parameter `num_faces' to

-	declaration.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Improve memory and error handling.

-

-	Free up memory after use, and improve error handling.

-

-	* src/sfnt/sfwoff2.c (reconstruct_font, woff2_open_font): Implement

-	changes.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Avoid too many calls to `FT_REALLOC'.

-

-	We do this by using `totalSfntSize' as an initial reference, and

-	extending the buffer when required.  This reduces rendering time

-	considerably.

-

-	* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec): Add

-	`totalSfntSize', rename `total_sfnt_size' to `actual_sfnt_size'.

-

-	* src/sfnt/sfwoff2.c (write_buf): Add parameter `dst_size' to keep

-	track of and update total size of stream.

-

-	(WRITE_SFNT_BUF, WRITE_SFNT_BUF_AT): Modify macros accordingly.

-

-	(pad4, store_loca, reconstruct_glyf, reconstruct_hmtx,

-	reconstruct_font): Update parameters to accept `sfnt_size'.

-

-	(woff2_open_font): Add variable `sfnt_size'.  Use WOFF2 header field

-	`totalSfntSize' as initial reference (if value makes sense) and

-	allocate `totalSfntSize' bytes for the sfnt stream.  `write_buf'

-	handles reallocation if and when required.  Also resize the stream

-	to `actual_sfnt_size' after reconstruction.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Reconstruct `loca', `hmtx', and swap out stream.

-

-	Add necessary functions to reconstruct loca and hmtx tables (the two

-	remaining tables that can have a transform).  `woff2_open_font' is

-	now capable of loading a woff2 font face.  This code may still need

-	more refining and better memory management.

-

-	* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec): Add total

-	(final) size of sfnt stream.

-

-	(WOFF2_InfoRec): Add header checksum value.

-

-	* src/sfnt/sfobjs.c (sfnt_open_font): Change `face_instance_index'

-	parameter to its pointer so its value can be modified by

-	`woff2_open_font'.

-

-	* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF_AT): New macro to write into

-	sfnt buffer at given position.

-

-	(write_buf): Add parameter `extend_buf' which allows caller to

-	specify whether buffer should be reallocated before copying data.

-

-	(WRITE_SFNT_BUF): Updated.

-

-	(pad4, store_loca, reconstruct_htmx): New functions.

-

-	(reconstruct_glyf): Calculate loca values and store them.

-

-	(reconstruct_font): Call `reconstruct_hmtx', write table record

-	entries, and calculate table checksums.  Also calculate font

-	checksum and update `checksumAdjustment' entry in head table.

-

-	(woff2_open_font): Open stream for sfnt buffer, swap out input

-	stream and return.

-

-	* src/sfnt/sfwoff2.h (woff2_open_font): Modify parameter to accept

-	pointer to `face_index'.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Reconstruct transformed `glyf' table.

-

-	Reconstruct `glyf' table if it is transformed in the uncompressed

-	table stream.  Also add necessary structures, macros and functions.

-

-	* include/freetype/internal/wofftypes.h (WOFF2_InfoRec,

-	WOFF2_SubstreamRec, WOFF2_PointRec): New structures.

-	(WOFF2_TableRec): s/OrigLength/dst_length/.

-

-	* src/sfnt/sfwoff2.c (READ_255USHORT, READ_BASE128): Use

-	`FT_SET_ERROR' to set implicit `error' variable.

-

-	(WRITE_SHORT): New macro.

-

-	(N_CONTOUR_STREAM, N_POINTS_STREAM, FLAG_STREAM, GLYPH_STREAM,

-	COMPOSITE_STREAM, BBOX_STREAM, INSTRUCTION_STREAM): New macros to

-	refer to substreams of the transformed `glyf' tables.

-

-	(Read255UShort, ReadBase128): Return errors set by `FT_READ_XXX'

-	macros.

-

-	(with_sign, safe_int_addition): New functions to add sign to values

-	based on a flag and perform safe addition respectively.

-

-	(triplet_decode): Decode variable-length (flag, xCoordinate,

-	yCoordinate) triplet for a simple glyph.   See

-

-	  https://www.w3.org/TR/WOFF2/#triplet_decoding

-

-	(store_points, compute_bbox, composteGlyph_size, reconstruct_glyf):

-	New functions.

-

-	(reconstruct_font): Call `reconstruct_glyf'.

-

-	* src/sfnt/sfwoff2.h: Add required constants.

-

-	* src/sfnt/woff2tags.h: Move out constants to `sfwoff2.h'.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Copy un-transformed tables to sfnt stream.

-

-	Copy un-transformed tables to the sfnt stream.

-

-	* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF): New macro.

-	(write_buf): New function.  Extend memory of `dst' buffer and copy

-	bytes from `src'.

-	(compute_ULong_sum): New function.  Calculate checksum of table.

-	(reconstruct_font): Change `FT_Byte* sfnt' to `FT_Byte**

-	sfnt_bytes'.  This has been done because we reallocate memory to

-	`sfnt' multiple times, which may change the pointer value of `sfnt'.

-	This new pointer must be propogated back to the caller.  Same reason

-	for using a double pointer in `write_buf'.

-

-	* src/sfnt/woff2tags.h (WOFF2_DEFAULT_MAX_SIZE): New macro used for

-	overflow checking.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Create stream for uncompressed buffer.

-

-	Uncompressed buffer is now an `FT_Stream'.

-

-	Perform basic checks and start iterating over tables.

-

-	* src/sfnt/sfwoff2.c (stream_close, find_table, read_num_hmetrics):

-	New functions.

-	(reconstruct_font): Modify parameters and iterate over tables.

-	(woff2_open_font): Updated.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Handle TTCs and start reconstructing font.

-

-	We `handle' TTCs by modifying the `indices' array to point to only

-	those tables that are part of the requested `face_index'.

-

-	Set and use `num_tables' in `WOFF2_TtcFont'.

-

-	* src/sfnt/sfwoff2.c (reconstruct_font): New function.

-	(woff2_open_font): Start reconstruction of font.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Get known tags from function.

-

-	Change `KnownTags' to a function (`woff2_known_tags').  This avoids

-	introducing a global constant array.  This function returns the

-	specified index without *any* checks.  The caller must ensure that

-	`index' is within array limits.

-

-	* src/sfnt/sfwoff2.c (woff2_open_font): Change `KnownTags[...]'

-	notation to `woff2_known_tags( ...  )'.

-

-	* src/sfnt/woff2tags.c: Perform changes.

-

-	* src/sfnt/woff2tags.h: Update definitions.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Minor.

-

-	* src/sfnt/sfwoff2.c (woff2_uncompress): Add error message

-	(woff2_open_font): Free `uncompressed_buf'.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Uncompress Brotli streams and `face_index' support.

-

-	WOFF2 compressed stream is now uncompressed if Brotli is available.

-	This data is stored in a separate buffer (uncompressed_buf) because

-	it does not contain direct table data.  Certain tables have

-	transformations applied to them, and they must be reconstructed

-	before we can write those tables to the SFNT stream.

-

-	`face_index' is now being passed as a parameter to

-	`woff2_open_font'.

-

-	* src/sfnt/sfobjs.c (sfnt_open_font): Add parameter

-	`face_instance_index'.

-

-	* src/sfnt/sfwoff2.c (woff2_uncompress): New function.

-	(woff2_open_font): Call `woff2_uncompress'.

-	(compute_first_table_offset): Fix return type.

-

-	* src/sfnt/sfwoff2.h (woff2_open_font): Modify declaration.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	* builds/unix/configure.raw: Change argument name to `brotli'.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	Add Brotli dependency and required checks.

-

-	Brotli is required for decompressing WOFF2 font directory streams.

-	The library is thus being added as an optional dependency for

-	FreeType.

-

-	* builds/unix/configure.raw: Add checks for `libbrotlidec'.

-	(REQUIRES_PRIVATE, LIBS_PRIVATE, LIBSSTATIC_CONFIG): Updated.

-

-	* devel/ftoption.h, include/freetype/config/ftoption.h

-	(FT_CONFIG_OPTION_USE_BROTLI): New macro.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Write SFNT Offset table.

-

-	* src/sfnt/sfwoff2.c (WRITE_USHORT, WRITE_ULONG): New macros.

-	(compare_tags): New function.

-	(woff2_open_font): Implement it.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	* src/sfnt/sfwoff2.c: #undef macros.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[woff2] Read table and collection directory.

-

-	* include/freetype/internal/wofftypes.h (WOFF2_TtcFontRec): New

-	structure.

-	(WOFF2_HeaderRec): Add more fields.

-

-	* src/sfnt/sfwoff2.c (READ_255USHORT, READ_BASE128, ROUND4): New

-	macros.

-	(Read255UShort, CollectionHeaderSize, compute_first_table_offset):

-	New functions.

-	(ReadBase128): Use `FT_READ_BYTE'.

-	(woff2_open_font): Add functionality to read table directory and

-	collection directory (if present).

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[sfnt] Include `woff2tags.c' for building.

-

-	* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `woff2tags.c'.

-

-	* src/sfnt/sfnt.c: Include `woff2tags.c'.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[sfnt] Add WOFF2 constants.

-

-	Add constants required for WOFF2, and known table tags as defined in

-	the specification.  See

-

-	  https://www.w3.org/TR/WOFF2/#table_dir_format

-

-	for details.

-

-	* src/sfnt/woff2tags.c, src/sfnt/woff2tags.h: New files.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	[sfnt] Read WOFF 2 header.

-

-	Check for WOFF2 tag, call `woff2_open_font', and implement it to read

-	header according to specification.

-

-	* include/freetype/internal/fttrace.h: Add `sfwoff2.c'.

-

-	* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `sfwoff2.c'.

-

-	* src/sfnt/sfnt.c: Include `sfwoff2.c'.

-

-	* src/sfnt/sfobjs.c (sfnt_open_font): Check for `wOF2' tag and call

-	`woff2_open_font'.

-

-	* src/sfnt/sfwoff2.c, src/sfnt/sfwoff2.h: New files.

-

-2019-08-27  Nikhil Ramakrishnan  <[email protected]>

-

-	Add structures for WOFF2.

-

-	Add structures and macro for WOFF 2 header and table directory.

-

-	* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec,

-	WOFF2_TableRec_): New structures.

-

-	* include/freetype/tttags.h (TTAG_wOF2): New macro.

-

-2019-08-26  Werner Lemberg  <[email protected]>

-

-	* src/psaux/cffdecode.c (cff_operator_seac): Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16470

-

-2019-08-26  Werner Lemberg  <[email protected]>

-

-	[type1] Fix `FT_Get_Var_Axis_Flags' (#56804).

-

-	* src/type1/t1load.c (T1_Get_MM_Var): Allocate space for axis flags.

-	Also remove redundant assignment.

-

-2019-07-24  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftbbox.c (cubic_peak): Sanitize left shift (#56586).

-

-2019-07-22  Weiyi Wu  <[email protected]>

-

-	* src/cid/cidload.c (cid_hex_to_binary): Fix typo (#56653).

-

-2019-07-12  Werner Lemberg  <[email protected]>

-

-	[sfnt, winfonts] Avoid memory leaks in case of error (#56587).

-

-	* src/sfnt/sfwoff.c (woff_open_font): Call `FT_FRAME_EXIT' in case

-	of error.

-

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

-

-2019-07-12  Ben Wagner  <[email protected]>

-

-	Properly handle phantom points for variation fonts (#56601).

-

-	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Scale phantom

-	points if HVAR and/or VVAR is present.

-

-2019-07-04  Werner Lemberg  <[email protected]>

-

-	[psaux] (2/2) Handle fonts that use SEAC for ligatures (#56580).

-

-	The same as previous commit but for the old engine.

-

-	* src/psaux/t1decode.c (t1operator_seac): Implement it.

-

-2019-07-04  Chris Liddell <[email protected]>

-

-	[psaux] (1/2) Handle fonts that use SEAC for ligatures (#56580).

-

-	As originally intended, a Type 1 SEAC charstring would be used for

-	an accented glyph (like `acaron' or `uumlaut'), where the advance

-	width of the SEAC glyph is the same as that of the `base' glyph

-	(like `a' or `u').  In this case it is not uncommon for the SEAC

-	glyph to not use an (H)SBW opcode of its own but to rely on the

-	value from the base glyph.

-

-	However, out-of-spec fonts also use SEAC glyphs for ligatures (like

-	`oe' or `fi'), and in those cases the overall advance width is

-	greater than that of the `base' glyph.  For this reason we have to

-	allow that the SEAC glyph can have an (H)SBW value of its own, and

-	if it has, retain this value, rather than the one from the base

-	glyph.

-

-	* src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escSEAC>:

-	Implement it.

-

-2019-07-01  Werner Lemberg  <[email protected]>

-

-	* Version 2.10.1 released.

-	==========================

-

-

-	Tag sources with `VER-2-10-1'.

-

-	* docs/VERSION.TXT: Add entry for version 2.10.1.

-

-	* README, Jamfile (RefDoc), src/base/ftver.rc,

-	builds/windows/vc2010/freetype.vcxproj,

-	builds/windows/vc2010/index.html,

-	builds/windows/visualc/freetype.dsp,

-	builds/windows/visualc/freetype.vcproj,

-	builds/windows/visualc/index.html,

-	builds/windows/visualce/freetype.dsp,

-	builds/windows/visualce/freetype.vcproj,

-	builds/windows/visualce/index.html,

-	builds/wince/vc2005-ce/freetype.vcproj,

-	builds/wince/vc2005-ce/index.html,

-	builds/wince/vc2008-ce/freetype.vcproj,

-	builds/wince/vc2008-ce/index.html: s/2.10.0/2.10.1/, s/2100/2101/.

-

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

-

-	* builds/unix/configure.raw (version_info): Set to 23:1:17.

-	* CMakeLists.txt (VERSION_PATCH): Set to 1.

-

-	* include/freetype/fterrors.h (FT_Error_String): Fix C++ compilation.

-

-2019-06-26  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Fix inequality.

-

-	Reported by Armin Hasitzka.

-

-2019-06-16  Werner Lemberg  <[email protected]>

-

-	* src/tools/apinames.c: Formatting, minor edits.

-

-2019-06-16  Werner Lemberg  <[email protected]>

-

-	[autofit] Disable hinting if no blue zones are available (#56450).

-

-	* src/autofit/afglobal.c (af_face_global_get_metrics): Start again

-	(with dummy hinter module) if no blue zones are present.

-

-	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Change

-	signature to return error code.

-	If no blue zones are found, update `glyph_styles' array to hold

-	AF_STYLE_NONE_DFLT instead of the current style.

-	(af_latin_metrics_init): Return internal error code if no blue zones

-	are found.

-

-2019-06-16  Werner Lemberg  <[email protected]>

-

-	Towards better VMS support.

-

-	More to come.

-

-	* builds/vms/LIBS.OPT_IA64, builds/vms/_LINK.OPT_IA64,

-	builds/vms/vmslib.dat: New files provided by Jouk Jansen

-	<[email protected]>.

-

-	* builds/vms/ftconfig.h: Update, also from Jouk.

-

-2019-06-13  Werner Lemberg  <[email protected]>

-

-	* src/autofit/aflatin.c (af_latin_metrics_init_widths): Minor.

-

-2019-06-13  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Restore the span buffering for direct mode only.

-

-	The buffer size FT_MAX_GRAY_SPANS is set to 10 spans, which should be

-	enough to cover the entire scanline for simple glyphs in most cases:

-	each slightly slanted edge needs up to two spans, plus a filling span

-	in-between.  This is not new, we used to do it before cb4388783cecc.

-

-	* src/smooth/ftgrays.c (gray_TWorker): Add `spans' and `num_spans'.

-	(gray_hline, gray_sweep): Implement the span buffering.

-	(gray_raster_render): Use negative `num_spans' to avoid the direct

-	mode.

-

-2019-06-12  Alexei Podtelezhnikov  <[email protected]>

-

-	* include/freetype/ftmodapi.h (FT_DebugHook_Func): Return error.

-

-	Fix a warning by adding a return value as in `TT_RunIns',

-	which should not be a compatibility issue.

-

-2019-06-11  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttobjs.c (tt_check_trickyness_family): Add `const'.

-

-2019-06-11  Moazin Khatti  <[email protected]>

-

-	[gzip] Add support for `gzip' encoded header.

-

-	* src/gzip/ftgzip.c (FT_Gzip_Uncompress): Modify the the call to

-	`inflateInit2' to enable support for `gzip' encoded headers.

-

-2019-06-10  Alexei Podtelezhnikov  <[email protected]>

-

-	[type1,type42] Use `const' for string literals.

-

-	* include/freetype/internal/psaux.h (PS_Table_FuncsRec): Updated.

-	* include/freetype/internal/t1types.h (T1_EncodingRec): Updated.

-	* src/psaux/psobjs.[ch] (ps_table_add): Updated.

-	* src/type1/t1load.c (T1_Open_Face, parse_encoding): Updated.

-	* src/type42/t42objs.c (T42_Open_Face): Updated.

-	* src/type42/t42parse.c (t42_parse_encoding): Updated.

-

-	* src/cff/cffobjs.c (cff_face_init): Minor.

-

-2019-06-10  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf,pcf] Use `const' for string literals.

-

-	* src/bdf/bdf.h (bdf_property_t): Updated `name'.

-	* src/bdf/bdflib.c (_bdf_list_split,bdf_create_property,

-	_bdf_add_property,_bdf_ato*): Updated.

-	* src/bdf/bdfdrivr.c (bdf_interpret_style): Updated.

-	* src/pcf/pcfread.c (pcf_intrpret_style): Ditto.

-

-2019-06-07  Philip Race  <[email protected]>

-

-	* src/base/ftinit.c (FT_Set_Default_Properties): Fix crash.

-

-	Terminate loop at end of environment.

-

-2019-05-31  Alexei Podtelezhnikov  <[email protected]>

-

-	Solidify VC2005 builds.

-

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

-	declare `_BitScanReverse' intrinsic.

-	* builds/windows/visualc/freetype.vcproj [Debug]: Disable intrinsics.

-

-2019-05-30  Nikhil Ramakrishnan  <[email protected]>

-

-	[sfnt] Separate WOFF sources and headers.

-

-	Move WOFF sources and headers to separate files.

-

-	* include/freetype/internal/wofftypes.h, src/sfnt/sfwoff.c,

-	src/sfnt/sfwoff.h: New files.

-

-	* include/freetype/internal/fttrace.h: Register `sfwoff.c'.

-

-	* include/freetype/internal/internal.h: Define

-	FT_INTERNAL_WOFF_TYPES_H.

-

-	* include/freetype/internal/sfnt.h: Include FT_INTERNAL_WOFF_TYPES_H.

-

-	* include/freetype/internal/tttypes.h: Move out WOFF structures.

-

-	* src/sfnt/rules.mk: Add `sfwoff.c'.

-

-	* src/sfnt/sfnt.c: Include `sfwoff.c'.

-

-	* src/sfnt/sfobjs.c: Include `sfwoff.h', move out WOFF sources.

-

-2019-05-30  Werner Lemberg  <[email protected]>

-

-	[base] Fix `make multi'.

-

-	Reported by Nikhil.

-

-	* src/base/fterrors.c: Include FT_INTERNAL_DEBUG_H.

-

-2019-05-29  Ben Wagner  <[email protected]>

-

-	[truetype] Fix copy-and-paste error (#56409).

-

-	* src/truetype/ttgload.c (load_truetype_glyph): Use correct indices

-	into `unrounded' array for phantom points.

-

-2019-05-29  Werner Lemberg  <[email protected]>

-

-	[truetype] Fix 32bit builds (#56404).

-

-	Patch suggested by Ben Wagner <[email protected]>.

-

-	* src/truetype/ttgxvar.c (FT_fixedToInt, FT_fixedToFdot6): Remove

-	harmful cast to unsigned type.

-

-2019-05-26  Ben Wagner  <[email protected]>

-

-	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Improve accuracy.

-

-2019-05-23  Werner Lemberg  <[email protected]>

-

-	[truetype] Draw glyphs without deltas in variation font (#56374).

-

-	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Always fill

-	`unrounded' array.

-

-2019-05-21  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttinterp.c (opcode_name): Improve mnemonics.

-

-2019-05-16  Werner Lemberg  <[email protected]>

-

-	[truetype] Actually scale varied CVT values.

-

-	Up to now, only the unscaled CVT values were varied; in other words,

-	the `CVAR' data was never used for bytecode hinting.

-

-	* src/truetype/ttgxvar.c (tt_cvt_ready_iterator): New auxiliary

-	function.

-	(tt_face_vary_cvt): Use it to trigger rescaling of CVT values.

-

-2019-05-16  Werner Lemberg  <[email protected]>

-

-	[truetype] Use 26.6 format for storing unscaled CVT values.

-

-	If `CVAR' data is applied to variation fonts, fractional values are

-	possible.

-

-	* include/freetype/internal/tttypes.h (TT_FaceRec): Change type of

-	`cvt' from `FT_Short' to `FT_Int32'.

-

-	* src/truetype/ttgxvar.c (FT_fdot6ToFixed): New macro.

-	(tt_face_vary_cvt): Use it to update code to 26.6 format.

-

-	* src/truetype/ttobjs.c (tt_size_run_prep): Update code to 26.6

-	format.

-

-	* src/truetype/ttpload.c (tt_face_load_cvt): Stora data in 26.6

-	format.

-

-2019-05-16  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgload.c (load_truetype_glyph): Init `unrounded'.

-

-	This fixes linear advance width values for spacing glyphs.  Bug

-	introduced 2019-05-09.

-

-2019-05-16  Werner Lemberg  <[email protected]>

-

-	[truetype] Avoid code duplication.

-

-	* src/truetype/ttobjs.c (tt_size_run_prep): Scale CVT values in this

-	function.

-	(tt_size_ready_bytecode): Updated.

-	* src/truetype/ttgload.c (tt_loader_init): Updated.

-

-2019-05-13  Jouk Jansen  <[email protected]>

-

-	* vms_make.com: Updated.  Handle `bzip2' directory, too.

-

-2019-05-13  Werner Lemberg  <[email protected]>

-

-	* src/psaux/psfont.c (cf2_font_setup): Fix compiler warning.

-

-2019-05-12  Werner Lemberg  <[email protected]>

-

-	[truetype] Doh.  Fix last commit to make it work.

-

-	Very embarassing :-)

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14701

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14705

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14710

-

-	* src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): Move up and add

-	argument; update all callers.

-	(TT_Process_Simple_Glyph): Use it.  The `unrounded' array is active

-	for variation fonts only, thus also enclose related code with

-	`#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT ...  #endif' where

-	necessary.

-	Revert commit a113e5d from 2019-05-09, and don't use `extra_points2'

-	but allocate a temporary array.

-	Speed up the scaling of the `unrounded' array.

-

-	* src/truetype/ttgxvar.c (FT_fixedToInt, FT_FixedToFdot6): Fix type

-	conversions and rounding.  The unsigned type must have more or equal

-	bits to the signed type.

-

-2019-05-09  Werner Lemberg  <[email protected]>

-

-	[truetype] Increase precision of font variation (#54371).

-

-	This patch makes FreeType use font units in 26.6 format internally

-	instead of integers.

-

-	* src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro.

-	(TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font

-	coordinates.

-	* src/truetype/ttgxvar.h: Updated.

-

-	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use

-	`extra_points2' array to temporarily hold unrounded point

-	coordinates; use them to compute scaled coordinates and linear

-	advance width and height.

-	(load_truetype_code): Adjust similarly.

-

-2019-05-09  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Minor.

-

-2019-05-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Faster fractions.

-

-	* src/smooth/ftgrays.c (SUBPIXELS): Replace with...

-	(FRACT): A fractional coordinate macro to use in...

-	(gray_render_line, gray_render_scanline): ... here.

-

-2019-05-07  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/raster/ftraster.c (Draw_Sweep): Unbreak.

-

-2019-05-05  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/raster/ftraster.c: Clean-ups.

-

-2019-05-05  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgxvar.c: More use of `FT_fdot14ToFixed'.

-

-2019-05-04  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/smooth/ftgrays.c (gray_render_line): Small shortcut.

-

-2019-05-04  Werner Lemberg  <[email protected]>

-

-	Various clang 8.0 static analyzer fixes.

-

-	Reported by Sender Ghost <[email protected]>.

-

-	* src/autofit/afcjk.c (af_cjk_hints_compute_edges): Catch a corner

-	case where `edge->first' could be NULL.

-

-	* src/pfr/pfrobjs.c (pfr_slot_load): Remove unnecessary test of

-	`size'.

-

-	* src/raster/ftraster.c (Draw_Sweep): Catch a corner case where

-	`draw_right' might be NULL.

-

-	* src/sfnt/ttmtx.c (tt_face_get_metrics): Fix limit test for

-	`aadvance'.

-	Ensure `abearing' always hold a meaningful result.

-

-	* src/truetype/ttgload.c (load_truetype_glyph): Ensure `subglyph' is

-	not NULL before accessing it.

-	* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Remove unnecessary

-	test of `namedstyle'.

-

-	* src/type42/t42parse.c (t42_parser_done): Ensure

-	`parser->root.funcs.done' is not NULL before accessing it.

-

-2019-05-03  Alexei Podtelezhnikov  <[email protected]>

-

-	Miscellaneous macro updates.

-

-	* src/base/ftoutln.c (SCALED): Updated.

-	* src/smooth/ftgrays.c (SCALED): Ditto.

-	(FLOOR, ROUND, CEILING): Removed.

-	* src/psaux/psfixed.h (cf2_fracToFixed): Updated.

-

-2019-05-02  Alexei Podtelezhnikov  <[email protected]>

-

-	Tweak LCD filtering.

-

-	* src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy):

-	Choose direction from bitmap's pixel_mode.

-	* include/freetype/internal/ftobjs.c (FT_Bitmap_LcdFilterFunc):

-	Updated.

-	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated.

-

-2019-05-02  Werner Lemberg  <[email protected]>

-

-	* vms_make.com: Updated (#56253).

-

-	Remove no longer existing directories (`autohint', `otlayout').

-	Update used base extensions.

-	Activate `autofit' module.

-	Add `gxvalid' module.

-	Update copyright notices.

-

-2019-04-29  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Simplify cubic Bézier flattening.

-

-	The previous implementation is correct but it is too complex.

-	The revised algorithm is based on the fact that each split moves

-	the control points closer to the trisection points on the chord.

-	The corresponding distances are good surrogates for the curve

-	deviation from the straight line.

-

-	This cubic flattening algorithm is somewhat similar to the conic

-	algorithm based the distance from the control point to the middle of

-	the chord.  The cubic distances, however, decrease less predictably

-	but are easy enough to calculate on each step.

-

-	The new algorithm produces slightly larger number of splits, which is

-	compensated by its simplicity.  The overall rendering performance is

-	improved by 1-2%.  The larger number of splits does not necessarily

-	result in higher quality, which stays comparable.

-

-	* src/smooth/ftgrays.c (gray_render_cubic): Replace the split

-	condition.

-

-2019-04-26  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Bithacks and cosmetics.

-

-	* src/smooth/ftgrays.c (gray_record_cell, gray_set_cell, gray_hline,

-	gray_render_conic, gray_convert_glyph_inner): Updated.

-

-2019-04-25  Alexei Podtelezhnikov  <[email protected]>

-

-	Optimize Bézier bisections.

-

-	This change makes bisections faster by 20-30%. When inlined into

-	`gray_render_cubic', this makes the function faster by 10% and is

-	noticeable in the overall rendering performance.

-

-	* src/raster/ftraster.c (Split_Conic, Split_Cubic): Use shifts and

-	refactor.

-	* src/smooth/ftgrays.c (gray_split_conic, gray_split_cubic): Ditto.

-	* src/base/ftstroke.c (ft_conic_split, ft_cubic_split): Ditto.

-	* src/base/ftbbox.c (cubic_peak): Use shifts.

-

-2019-04-23  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/ttcmap.c (tt_cmap12_next): Remove dead code.

-

-	Found by clang 8.0's static analyzer and reported by Sender Ghost

-	<[email protected]>.

-

-2019-04-23  Werner Lemberg  <[email protected]>

-

-	[base] Fix thinko in previous commit.

-

-	* src/base/ftbitmap.c (FT_Bitmap_Blend): Check final width, not

-	target pitch.

-

-	Problem reported by Sender Ghost <[email protected]>.

-

-2019-04-22  Werner Lemberg  <[email protected]>

-

-	* src/base/ftbitmap.c (FT_Bitmap_Blend): Check target pitch.

-

-	Problem reported by Sender Ghost <[email protected]>.

-

-2019-04-22  Werner Lemberg  <[email protected]>

-

-	Fix return value of `FT_Set_Named_Instance' (#56186).

-

-	* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Correctly handle

-	internal return value -1 of `TT_Set_Var_Design'.

-

-2019-04-18  Werner Lemberg  <[email protected]>

-

-	[pcf] Fix handling of undefined glyph (#56067).

-

-	This commit fixes the changes from 2018-07-21, which broke charmap

-	iteration.  We now add the default character as a new glyph with

-	index 0, thus increasing the number of glyphs by one (as before).

-

-	* src/pcf/pcfread.c (pcf_get_metrics): Adjust to new artificial

-	glyph with index 0.

-	Limit number of elements to 65534.

-	(pcf_get_bitmaps): Ditto.

-	Unify two loops into one; this avoids allocation of an intermediate

-	array.

-	(pcf_get_encodings): Don't flip indices but copy glyph metrics of

-	default character to index 0.

-	Also handle invalid default character.

-

-	* docs/CHANGES: Updated.

-

-2019-04-15  Minmin Gong  <[email protected]>

-

-	* CMakeLists.txt: Avoid rewriting of unchanged configuration files.

-

-	Reported as

-

-	  https://savannah.nongnu.org/patch/index.php?9755

-

-2019-04-15  JDG  <[email protected]>

-

-	* src/tools/apinames.c (main): Fix error message.

-

-	Reported as

-

-	  https://savannah.nongnu.org/patch/?9796

-

-2019-04-11  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Fix segfault in direct mode (#56092).

-

-	* src/base/ftoutln.c (FT_Outline_Render): Set missing clip_box for

-	direct mode.

-	* src/smooth/ftgrays.c (gray_raster_render): Use it.

-

-2019-04-06  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/ttcmap.c (tt_get_glyph_name): Pacify compiler (#56061).

-

-	This is for Visual Studio 2019 on ARM.

-

-2019-04-06  Werner Lemberg  <[email protected]>

-

-	For distribution, replace `.tar.bz2' with `.tar.xz' bundles.

-

-	* builds/toplevel.mk (build): Do it.

-

-	* README, docs/CHANGES, docs/release: Updated.

-

-2019-04-06  Antony Lee  <[email protected]>

-

-	Make `glyph_name' parameter to `FT_Get_Name_Index' a `const'.

-

-	* include/freetype/freetype.h (FT_Get_Name_Index),

-	include/freetype/internal/ftobjs.h (FT_Face_GetGlyphNameIndexFunc),

-	include/freetype/internal/services/svgldict.h

-	(FT_GlyphDict_NameIndexFunc), src/base/ftobjs.c (FT_Get_Name_Index),

-	src/cff/cffdrivr.c (cff_get_name_index), src/sfnt/sfdriver.c

-	(sfnt_get_name_index), src/type1/t1driver.c (t1_get_name_index),

-	src/type42/t42drivr.c (t42_get_name_index): Add `const' to second

-	argument.

-

-2019-03-31  Armin Hasitzka  <[email protected]>

-

-	[cff] Fix boundary checks.

-

-	642bc7590c701c8cd35a9f60fa899cfa518b17ff introduced dynamically

-	allocated memory when parsing CFF files with the "old" engine.  Bounds

-	checks have never been updated, however, leading to pointless

-	comparisons of pointers in some cases.  This commit presents a

-	solution for bounds checks in the CFF module with an extended logic

-	for the "old" engine while staying as concise as possible for the

-	"new" one.

-

-	* src/cff/cffparse.h: Introduce the struct `CFF_T2_StringRec' and

-	the additional field `t2_strings' within `CFF_ParserRec'.

-

-	* src/cff/cffparse.c (cff_parser_within_limits): Move all boundary

-	checks into this new function and update the rest of `cffparse.c' to

-	use it.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12137

-

-2019-03-20  Werner Lemberg  <[email protected]>

-

-	[autofit] Fix Mongolian blue zone characters.

-

-	* src/autofit/afblue.dat: Use U+200D (ZERO-WIDTH JOINER) characters

-	to get medial forms for some Mongolian characters.

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

-

-2019-03-19  Werner Lemberg  <[email protected]>

-

-	[autofit] Add support for Mongolian script.

-

-	As a de-facto standard, layouts using this script are constructed

-	horizontally line by line, then the lines are rotated clockwise for

-	vertical display.

-

-	* src/autofit/afblue.dat: Add blue zone data for Mongolian.

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

-

-	* src/autofit/afscript.h: Add Mongolian standard characters.

-

-	* src/autofit/afranges.c, src/autofit/afstyles.h: Add Mongolian

-	data.

-

-2019-03-15  Werner Lemberg  <[email protected]>

-

-	* Version 2.10.0 released.

-	==========================

-

-

-	Tag sources with `VER-2-10-0'.

-

-	* docs/VERSION.TXT: Add entry for version 2.10.0.

-	* docs/CHANGES: Updated.

-

-	* README, Jamfile (RefDoc), src/base/ftver.rc,

-	builds/windows/vc2010/freetype.vcxproj,

-	builds/windows/vc2010/index.html,

-	builds/windows/visualc/freetype.dsp,

-	builds/windows/visualc/freetype.vcproj,

-	builds/windows/visualc/index.html,

-	builds/windows/visualce/freetype.dsp,

-	builds/windows/visualce/freetype.vcproj,

-	builds/windows/visualce/index.html,

-	builds/wince/vc2005-ce/freetype.vcproj,

-	builds/wince/vc2005-ce/index.html,

-	builds/wince/vc2008-ce/freetype.vcproj,

-	builds/wince/vc2008-ce/index.html: s/2.9.1/2.10.0/, s/291/2100/.

-

-	* include/freetype/freetype.h (FREETYPE_MINOR): Set to 10.

-	(FREETYPE_PATCH): Set to 0.

-

-	* builds/unix/configure.raw (version_info): Set to 23:0:17.

-	* CMakeLists.txt (VERSION_MINOR): Set to 10.

-	(VERSION_PATCH): Set to 0.

-

-	* builds/toplevel.mk (version, winversion): Since the minor version

-	number has two digits now, never omit the patch number.  We would

-	get ambiguous zip file names otherwise.

-	(dist): Remove remnants of `docmaker' tool.

-	(do-dist): Remove unused intermediate files.

-

-	* src/cff/cffparse.c (destrict_c2s_item): Guard function with

-	CFF_CONFIG_OPTION_OLD_ENGINE macro.

-

-2019-03-07  Andrei Alexeyev  <[email protected]>

-            Werner Lemberg  <[email protected]>

-

-	Fix invalid function pointer casts.

-

-	This change should allow Freetype to work on WASM/Emscripten without

-	needing `-s EMULATE_FUNCTION_POINTER_CASTS=1'.

-

-	* src/autofit/afdummy.c (af_dummy_hints_apply): Fix signature.

-

-	* src/cid/cidload.c (cid_parse_font_matrix, parse_fd_array,

-	parse_expansion_factor, parse_font_name): Return `void', not

-	`FT_Error'.

-

-	* include/freetype/internal/ftobjs.h (FT_CMap_CharVarIsDefaultFunc):

-	Fix signature.

-

-2019-03-05  Werner Lemberg  <[email protected]>

-

-	[base] Handle numeric overflow (#55827).

-

-	* src/base/ftglyph.c (FT_Glyph_Get_CBox): Use `FT_PIX_CEIL_LONG'.

-

-2019-03-05  Sebastian Rasmussen  <[email protected]>

-

-	[psaux] Fix use of uninitialized memory (#55832).

-

-	* src/psaux/psintrp.c (cf2_interpT2CharString): The call to

-	`cf2_arrstack_setCount' may fail because the allocator ran out of

-	memory.  When this happens the stack is still written to before the

-	error condition is checked.  This means that FreeType writes outside

-	of allocated memory.  This commit moves the error check prior to the

-	stack assignment, hence the function now properly returns with an

-	error condition.

-

-2019-02-23  Werner Lemberg  <[email protected]>

-

-	* src/base/ftbitmap.c (FT_Bitmap_Blend): No fractional offsets.

-

-	The function only provided a framework without an actual

-	implementation, which this commit removes.

-

-2019-02-23  Werner Lemberg  <[email protected]>

-

-	* src/tools/update-copyright-year: Insert `(C)'.

-

-2019-02-21  Armin Hasitzka  <[email protected]>

-

-	[truetype] Mask numeric overflows.

-

-	* src/truetype/ttinterp.c (Move_CVT, Move_CVT_Stretched, Ins_MIRP):

-	Mask numeric overflows.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11681

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11734

-

-2019-02-21  Armin Hasitzka  <[email protected]>

-

-	[psaux] Mask numeric overflow.

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Mask numeric

-	overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13041

-

-2019-02-16  Wink Saville  <[email protected]>

-

-	* src/autofit/afwarp.h (af_warper_compute): Fix declaration.

-

-2019-02-02  Nikolaus Waxweiler  <[email protected]>

-

-	[truetype] Apply MVAR hasc, hdsc and hlgp metrics to current FT_Face metrics.

-

-	Instead of setting typo or win metrics as the new `FT_Face' metrics

-	indiscriminately, apply only typo deltas to the currently active

-	`FT_Face' metrics.  This prevents line height differences when the

-	default outlines were used as the regular face and instances for

-	everything else, for example.

-

-	* src/truetype/ttgxvar.c (tt_apply_mvar): Implement.

-

-2019-02-02  Nikolaus Waxweiler  <[email protected]>

-

-	[sfnt] Use typo metrics if OS/2 fsSelection USE_TYPO_METRICS bit is set.

-

-	If the `OS/2' table exists and `fsSelection' bit 7

-	(USE_TYPO_METRICS) is set, use the `sTypo*' set of values to compute

-	the `FT_Face's ascender, descender, and height.  Otherwise, fall

-	back to old behavior.

-

-	* src/sfnt/sfobjs.c (sfnt_load_face): Implement.

-

-2019-01-18  John Tytgat  <[email protected]>

-

-	[sfnt] Handle TT fonts having two PostScript font names (#55471).

-

-	* src/sfnt/sfdriver.c (sfnt_get_name_id): Prefer English over any

-	other language found for PostScript font names.

-

-2019-01-08  Chris Liddell <[email protected]>

-

-	[psaux] Fix closepath (#55414).

-

-	All of the Type 1 path building is done with code common to the

-	revised CFF engine, with the exception of closepath, which was still

-	calling ps_builder_close_contour(), thus previously cached segments

-	were not always written to the path, and glyph corruption, or even

-	invalid outlines were possible.

-

-	* src/psauc/psinterp.c (cf2_interpT2CharString) <cf2_cmdCLOSEPATH>:

-	Switch to calling `cf2_glyphpath_closeOpenPath'.

-

-2018-12-29  Werner Lemberg  <[email protected]>

-

-	* src/autofit/aflatin2.c: Some fixes from `aflatin.c' (#55310).

-

-2018-12-25  Werner Lemberg  <[email protected]>

-

-	* src/psaux/cffdecode.c (cff_operaor_seac): Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11915

-

-2018-12-12  Werner Lemberg  <[email protected]>

-

-	[gxvalid] Fix compiler warnings.

-

-	* src/gxvalid/gxvjust.c (gxv_just_check_max_gid),

-	src/gxvalid/gxvmort.c (gxv_mort_coverage_validate): Use `FT_UNUSED'.

-

-2018-12-11  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgload.c (TT_Hint_Glyph): Remove useless test.

-

-	`control_len' only gets its value from `n_ins' (and vice versa),

-	which is always read as `unsigned short' and thus can't be larger

-	than 0xFFFF.

-

-2018-12-04  Werner Lemberg  <[email protected]>

-

-	[bdf] Ignore data after `ENDFONT'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10798

-

-	* src/bdf/bdflib.c (_bdf_parse_end): New function.

-	(_bdf_parse_glyphs): Switch to `_bdf_parse_end' after `ENDFONT' has

-	been encountered.

-

-2018-12-02  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/windows/visualc/freetype.dsp: Dust off.

-

-2018-11-27  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/windows/vc2010/freetype.vcxproj: Simplify.

-

-2018-11-27  Chris Liddell  <[email protected]>

-

-	[type1,cff] Add FT_{Set,Get}_MM_WeightVector API calls.

-

-	For multiple master fonts, common usage (in Postscript) is to modify

-	the WeightVector of an existing font instance, this addition

-	supports that use.

-

-	* include/freetype/ftmm.h, src/base/ftmm.c (FT_Set_MM_WeightVector,

-	FT_Get_MM_WeightVector): New API functions.

-

-	* include/freetype/internalservices/svmm.h

-	(FT_Set_MM_WeightVector_Func, FT_Get_MM_WeightVector_Func): New

-	function types.

-	(MultiMasters): Add `set_mm_weightvector' and `get_mm_weightvector'

-	members.

-	(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.

-

-	* src/cffcffdrivr.c (cff_set_mm_weightvector,

-	cff_get_mm_weightvector): New functions.

-	(cff_service_multi_masters): Register them.

-

-	* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.

-	This driver doesn't use the new interface.

-

-	* src/type1/t1load.c (T1_Set_MM_WeightVector,

-	T1_Get_MM_WeightVector): New functions.

-	* src/type1/t1driver.c (t1_service_multi_masters): Register them.

-	* src/type1/t1load.h: Updated.

-

-2018-11-27  Ben Wagner  <[email protected]>

-

-	[cff] Fix compiler warning (#55105).

-

-	* src/cff/cffparse.c (cff_parser_run): Guard label only used if

-	CFF_CONFIG_OPTION_OLD_ENGINE is active.

-

-2018-11-27  Ben Wagner  <[email protected]>

-

-	[truetype] Fix numeric overflow (#55103).

-

-	* src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.

-

-2018-11-25  Alexei Podtelezhnikov  <[email protected]>

-

-	[builds] Belated DLL support with vc2002-vc2008.

-

-	The solution and project files should be automatically upgraded for

-	the approriate Visual C++ version.

-

-	* builds/windows/visualc/freetype.{sln,vcproj}: Major upgrades.

-	* builds/windows/visualc/index.html: Document the change.

-	* builds/windows/vc2005, builds/windows/vc2008: Removed as redundant.

-

-2018-11-22  Armin Hasitzka  <[email protected]>

-

-	* src/cff/cffparse.c: Please the compiler.

-

-2018-11-22  Armin Hasitzka  <[email protected]>

-

-	[cff] Fix memory overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9869

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10869

-

-	* src/cff/cffparse.c (destruct_t2s_item, cff_parser_run): Store

-	evaluated T2 charstrings in separately allocated memory.

-

-2018-11-18  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/windows/{visualc,vc2005,vc2008}/freetype.vcproj: Fix it.

-

-2018-11-10  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Placeholder only for library-enabled LCD filtering.

-

-	* src/smooth/ftsmooth.c (ft_smooth_init): Add disabled

-	`FT_Library_SetLcdFilter' call.

-

-2018-11-09  Young Xiao  <[email protected]>

-

-	[psaux] Add safety guard (#54985).

-

-	* src/psaux/psobjs.c (cff_builder_close_contour): Do it.

-

-2018-11-08  Alexei Podtelezhnikov  <[email protected]>

-

-	* builds/unix/configure.raw: Require `windows.h' for windres.

-

-2018-11-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[ftstroke] Fix unpredictable failures (#54986).

-

-	* src/base/ftstroke.c (ft_sroke_border_lineto): Fix lineto check.

-

-2018-11-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[ftstroke] Fix unpredictable failures (#54976).

-

-	* src/base/ftstroke.c (ft_sroke_border_close): Set the start tags.

-

-2018-11-07  Ben Wagner  <[email protected]>

-

-	[truetype] Fix VF check from 2018-09-12 (#54973).

-

-	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Use correct

-	offsets for estimates.

-

-2018-11-06  Werner Lemberg  <[email protected]>

-

-	[pshinter] Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11242

-

-	* src/pshinter/pshrec.c (ps_dimension_add_t1stem): Implement it.

-

-2018-11-06  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix timeout in old CFF engine.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11260

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

-	<cff_op_sqrt> [CFF_CONFIG_OPTION_OLD_ENGINE]: Fix potential endless

-	loop.

-

-2018-11-04  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttgxvar.c: Use enum definitions.

-

-2018-11-03  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Adjust condition.

-

-2018-11-03  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Tracing tweaks.

-

-2018-11-03  Alexei Podtelezhnikov  <[email protected]>

-

-	Revert due to specs: [truetype] Speed up variation IUP.

-

-2018-11-02  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttgxvar.c (ft_var_get_item_delta): Fixed logic.

-

-	Reported and tested by Behdad.

-

-2018-11-02  Shailesh Mistry  <[email protected]>

-

-	[autofit] Prevent SEGV.

-

-	See

-

-	  https://bugs.ghostscript.com/show_bug.cgi?id=697545

-

-	for more details on how the bug was found.

-

-	* src/autofit/afloader.c (af_loader_load_glyph): Propagate error

-	code.

-

-2018-10-31  Alexei Podtelezhnikov <[email protected]>

-

-	[truetype] Speed up variation IUP.

-

-	* src/truetype/ttgxvar.c (tt_delta_interpolate): Separate trivial

-	snapping to the same position from true interpolation.

-

-2018-10-31  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/type1/t1load.c (t1_set_mm_blend): Optimized.

-

-2018-10-31  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/truetype/ttgxvar.c (ft_var_get_item_delta): Optimized.

-

-2018-10-29  Werner Lemberg  <[email protected]>

-

-	[base] Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11080

-

-	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Use `MUL_LONG'.

-

-2018-10-29  Werner Lemberg  <[email protected]>

-

-	[cff] Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10988

-

-	* src/cff/cffparse.c (cff_parser_run)

-	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use `NEG_LONG'.

-

-2018-10-27  Alexei Podtelezhnikov  <[email protected]>

-

-	[sfnt] Make `head' timestamps unsigned.

-

-	It's been more than 2^31 seconds since 1904.

-

-	* include/freetype/tttables.h (TT_Header): Change field types.

-	* src/sfnt/ttload.c (tt_face_load_generic_header): Updated.

-

-2018-10-27  Alexei Podtelezhnikov  <[email protected]>

-

-	Revert: Align FreeType with standard C memory management.

-

-2018-10-27  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix numeric overflow.

-

-	Triggered by

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11157

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_blend>

-	[CFF_CONFIG_OPTION_OLD_ENGINE]: Fix integer overflow.

-

-2018-10-20  Werner Lemberg  <[email protected]>

-

-	Avoid endless loop while tracing (#54858).

-

-	* src/type1/t1load.c (parse_buildchar): Guard tracing stuff with

-	FT_DEBUG_LEVEL_TRACE.

-

-2018-10-17  David Demelier  <[email protected]>

-

-	* CMakeLists.txt: Specify `RUNTIME DESTINATION'.

-

-	This is needed for DLL builds.

-

-2018-10-07  Werner Lemberg  <[email protected]>

-

-	A missing Unicode cmap is not a fatal error.

-

-	This is a follow-up to the previous commit.

-

-	* src/cff/cffobjs.c (cff_face_init), src/sfnt/sfobjs.c

-	(sfnt_load_face), src/type1/t1objs.c (T1_Face_Init),

-	src/type42/t42objs.c (T42_Face_Init): Implement it.

-

-2018-10-07  Werner Lemberg  <[email protected]>

-

-	Fix handling of FT_CONFIG_OPTION_ADOBE_GLYPH_LIST (#54794).

-

-	* src/cff/cffcmap.c (cff_cmap_unicode_init), src/psaux/t1cmap.c

-	(t1_cmap_unicode_init), src/sfnt/ttcmap.c (tt_cmap_unicode_init):

-	Check `unicodes_init' field.

-

-2018-10-03  Werner Lemberg  <[email protected]>

-

-	[ftgrays] Fix typo in stand-alone mode (#54771).

-

-	* src/smooth/ftgrays.c (FT_THROW) [STANDALONE_ &&

-	FT_DEBUG_LEVEL_TRACE]: Fix call to `FT_ERR_CAT'.

-

-2018-10-02  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix segfault.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10768

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

-	<cff_op_callothersubr> [CFF_CONFIG_OPTION_OLD_ENGINE]: Check

-	argument.

-

-2018-10-02  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10740

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>

-	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use NEG_INT.

-

-2018-10-02  Werner Lemberg  <[email protected]>

-

-	[pshinter] Handle numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10550

-

-	* src/pshinter/pshglob.c (psh_blues_snap_stem): Mask numeric

-	overflow.

-

-2018-09-27  Alexei Podtelezhnikov  <[email protected]>

-

-	Align FreeType with standard C memory management.

-

-	* include/freetype/ftsystem.h: Include FT_TYPES_H.

-	(*FT_Alloc_Func, *FT_Realloc_Func): Use size_t for the size arguments.

-	* src/raster/ftmisc.h: Ditto.

-

-	* builds/amiga/src/base/ftsystem.c, builds/unix/ftsystem.c,

-	* builds/vms/ftsystem.c, src/base/ftsystem.c (ft_alloc, ft_realloc):

-	Use size_t for the size arguments.

-

-	* src/base/ftdbgmem.c (ft_mem_debug_alloc, ft_mem_debug_realloc): Use

-	FT_Offset, aka size_t, for the size arguments.

-

-2018-09-25  Werner Lemberg  <[email protected]>

-

-	Fix handling of `FT_Bool'.

-

-	Before this commit we had code like

-

-	  (FT_Bool)( globals->glyph_styles[gindex] & 0x8000)

-

-	Since `FT_Bool' is defined to be an `unsigned char', the code

-	evaluated to something like

-

-	  (unsigned char)( 0x8532 & 0x8000)

-

-	which in turn expanded to

-

-	  (unsigned char)( 0x8000)

-

-	and finally yielded 0x00 – i.e., false – not as expected.

-

-	Problem reported and analyzed by Tony Smith <[email protected]>.

-

-	* include/freetype/fttypes.h (FT_BOOL): Add a comparison against

-	zero so that we always have a Boolean expression.

-

-	*/*: Replace castings to `FT_Bool' with calls to `FT_BOOL' where

-	possible.

-

-2018-09-23  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf] Speed up charmap access.

-

-	This makes FT_Get_Char_Index and FT_Get_Next_Char 4-5 times faster.

-

-	* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Help binary search

-	with continuous prediction.

-

-2018-09-22  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Another tweak.

-

-	This one should be clearer. When the rounded monochrome bbox collapses

-	we add a pixel that covers most if not all original cbox.

-

-2018-09-21  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Further tweak.

-

-2018-09-21  Ben Wagner  <[email protected]>

-

-	Improve auto-hinter handling of bitmap fonts (#54681).

-

-	For bitmap fonts, `FT_Load_Glyph' should either return an error or

-	not set the format to `FT_GLYPH_FORMAT_OUTLINE'.  However, in this

-	case `FT_Load_Glyph' calls into the auto-hinter which calls back

-	into `FT_Load_Glyph' with `FT_LOAD_NO_SCALE' in the flags, which

-	marks the glyph as `FT_GLYPH_FORMAT_OUTLINE' with an empty path

-	(even though it doesn't have any path).  It appears that the

-	auto-hinter should not be called when the face doesn't have

-	outlines.  The current test for using the auto-hinter in

-	`FT_Load_Glyph' checks whether the driver supports scalable

-	outlines, but not if the face supports scalable outlines.

-

-	* src/base/ftobjs.c (FT_Load_Glyph): Directly check whether we have

-	scalable outlines.

-

-2018-09-21  Werner Lemberg  <[email protected]>

-

-	[raster] Fix disappearing vertical lines (#54589).

-

-	* src/raster/ftraster.c (Vertical_Sweep_Span): Handle special case

-	where both left and right outline exactly pass pixel centers.

-

-2018-09-20  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Tiny rounding tweak.

-

-	This adds pixels in case a contour goes through the center

-	and they need to be turned on in the b/w rasterizer.

-

-2018-09-20  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf] Replace charmap implementation.

-

-	PCF comes with charmap lookup table, aka PCF encodings.  Using it

-	directly makes FT_Get_Char_Index and FT_Get_Next_Char 4-5 times

-	faster than the original BDF-like binary searches.

-

-	* src/pcf/pcf.h (PCF_EncodingRec): Removed.

-	(PCF_FaceRec): Remove `nencodings' and `encodings'.

-	* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Replaced.

-	* src/pcf/pcfread.c (pcf_get_encodings): Store data differently.

-

-2018-09-20  Werner Lemberg  <[email protected]>

-

-	[base] Remove unused function `FT_GlyphLoader_CopyPoints'.

-

-	* include/freetype/internal/ftgloadr.h, src/base/ftgloadr.c

-	(FT_GlyphLoader_CopyPoints): Do it.

-

-2018-09-19  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf] Prepare to replace charmap implementation.

-

-	* src/pcf/pcf.h (PCF_FaceRec): Updated to include...

-	(PCF_EncRec): ... this new structure to store charmap geometry.

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Store charmap geometry.

-

-2018-09-18  Alexei Podtelezhnikov  <[email protected]>

-

-	Remove unused fields.

-

-	* src/pcf.h (PCF_FaceRec): Remove `charmap' and `charmap_handle'.

-	* src/bdfdrvr.h (BDF_FaceRec): Ditto.

-	* src/winfonts/winfnt.h (FNT_FaceRec): Ditto.

-

-2018-09-17  Werner Lemberg  <[email protected]>

-

-	[pshinter] Handle numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10396

-

-	* src/pshinter/pshglob.c: Include FT_INTERNAL_CALC_H.

-	(psh_blues_snap_stem): Mask numeric overflow.

-

-2018-09-13  Werner Lemberg  <[email protected]>

-

-	[truetype] Some fixes for VF checks.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10317

-

-	* src/truetype/ttgxvar.c (ft_var_load_gvar): Properly exit memory

-	frame if we have invalid glyph variation data offsets.

-	(tt_face_vary_cvt): Protect against missing `tuplecoords' array.

-	Fix typo.

-

-2018-09-13  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Fix last commit.

-

-2018-09-13  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Check `result'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10316

-

-2018-09-12  John Tytgat  <[email protected]>

-

-	[sfnt] Better PS name handling (#54629).

-

-	* src/sfnt/sfdriver (IS_WIN, IS_APPLE): Omit language ID checks.

-	(get_win_string, get_apple_string): Return NULL when the PostScript

-	font name characters is not according to specification.

-	(get_win_string): Make trace output work if the high byte if

-	non-zero.

-	(sfnt_get_var_ps_name, sfnt_get_ps_name): Previously we preferred

-	Win PS name (when there is also an Apple PS name); change this into

-	a fallback to Apple PS name in case the Win PS name is invalid.

-

-2018-09-12  Werner Lemberg  <[email protected]>

-

-	[truetype] Improve VF check.

-

-	Triggered by

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10255

-

-	* src/truetype/ttgxvar.c (ft_var_load_gvar): Use better limit check

-	for `tupleCount'.

-

-2018-09-12  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgxvar.c (ft_var_load_gvar): Check `glyphoffsets'.

-

-2018-09-10  Armin Hasitzka  <[email protected]>

-

-	* src/pshinter/pshrec.c (t2_hints_stems): Mask numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10215

-

-2018-09-09  Ben Wagner  <[email protected]>

-

-	* builds/freetype.mk (refdoc-venv): Ensure python version (#54631).

-

-2018-09-07  Werner Lemberg  <[email protected]>

-

-	[truetype] Fix assertion failure.

-

-	Triggered by

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10212

-

-	* src/truetype/ttgload.c (load_truetype_glyph): Reintroduce

-	`opened_frame' (removed in a change from 2018-08-26) to handle

-	deallocation of the second frame.

-

-2018-09-05  Werner Lemberg  <[email protected]>

-

-	Synchronize `ftdebug.c' files.

-

-	* builds/amiga/src/base/ftdebug.c, builds/wince/ftdebug.c,

-	builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c'.

-

-2018-09-05  Nikhil Ramakrishnan  <[email protected]>

-

-	Add documentation guidelines file.

-

-	* docs/DOCGUIDE: New file.

-

-2018-09-04  Werner Lemberg  <[email protected]>

-

-	* devel/ftoption.h: Synchronize with master `ftoption.h'.

-

-2018-09-03  Nikhil Ramakrishnan  <[email protected]>

-

-	[docwriter] Don't break code snippets accross lines.

-

-	Reported as

-

-	  https://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00124.html

-

-	* docs/reference/markdown/stylesheets/extra.css (.md-typeset code):

-	Add rule `white-space'.

-

-2018-09-03  Werner Lemberg  <[email protected]>

-

-	*/*: s/PSNames/psnames/.

-

-	Only tracing messages are affected.

-

-2018-09-03  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix heap buffer overflow in CPAL handling.

-

-	* src/sfnt/ttcpal.c (tt_face_palette_set): Fix boundary test.

-	(tt_face_load_cpal): Updated.

-

-2018-09-01  Werner Lemberg  <[email protected]>

-

-	Remove `FT_Outline_{New,Done}_Internal'.

-

-	These public API functions(!) were always undocumented and have

-	escaped all clean-up efforts until now.

-

-	* include/freetype/ftoutln.h (FT_Outline_New_Internal,

-	FT_Outline_Done_Internal): Removed.

-

-	* src/base/ftoutln.h (FT_Outline_New_Internal,

-	FT_Outline_Done_Internal): Merge into...

-	(FT_Outline_New, FT_Outline_Done): ... these functions.

-

-	* docs/README: Updated.

-

-2018-08-30  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Check glyph format.

-

-2018-08-31  Armin Hasitzka  <[email protected]>

-

-	[errors] Refine the macro logic surrounding `FT_Error_String'.

-

-	* include/freetype/fterrors.h (FT_INCLUDE_ERR_PROTOS,

-	FT_ERR_PROTOS_DEFINED): Undefine `FT_INCLUDE_ERR_PROTOS' after

-	checking it and introduce a new macro that takes proper care of

-	multiple-inclusion protection.

-

-2018-08-31  Werner Lemberg  <[email protected]>

-

-	* src/base/ftdebug.c (FT_Throw): Restore missing `FT_UNUSED' calls.

-

-2018-08-31  Werner Lemberg  <[email protected]>

-

-	* src/base/ftdebug.c (FT_Throw): Reduce chattiness.

-

-2018-08-31  Werner Lemberg  <[email protected]>

-

-	* src/autofit/afhints.c (af_glyph_hints_reload): Add initialization.

-

-2018-08-30  Alexei Podtelezhnikov  <[email protected]>

-

-	Consolidate bitmap presetting and size assessment.

-

-	* include/freetype/internal/ftobjs.h (ft_glyphslot_preset_bitmap):

-	Change return type.

-	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Return the bitmap

-	size assessment.

-

-	* src/raster/ftrend1.c (ft_raster1_render): Use it to refuse the

-	rendering of enourmous or far-fetched outlines.

-	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.

-

-2018-08-30  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Correct mono.

-

-2018-08-30  Armin Hasitzka  <[email protected]>

-

-	[errors] Introduce a macro to control `FT_Error_String'.

-

-	* devel/ftoption.h (FT_CONFIG_OPTION_ERROR_STRINGS),

-	include/freetype/config/ftoption.h (FT_CONFIG_OPTION_ERROR_STRINGS):

-	New macro.

-

-2018-08-30  Armin Hasitzka  <[email protected]>

-

-	[errors] Introduce `FT_Error_String'.

-

-	* include/freetype/fterrors.h (FT_Error_String),

-	src/base/fterrors.c (FT_Error_String): Implement `FT_Error_String'.

-

-	* src/base/ftbase.c, src/base/Jamfile (_source),

-	src/base/rules.mk (BASE_SRC): Add `fterrors.c' to the build logic.

-

-	* src/base/ftdebug.c (FT_Throw): Use `FT_Error_String'.

-

-2018-08-30  Werner Lemberg  <[email protected]>

-

-	[autofit] Trace `before' and `after' edges of strong points.

-

-	* src/autofit/afhints.h (AF_PointRec) [FT_DEBUG_AUTOFIT]: New arrays

-	`before' and `after'.

-

-	* src/autofit/afhints.c (af_get_strong_edge_index): New auxiliary

-	function.

-	(af_glyph_hints_dump_points): Trace `before' and `after' edges.

-	(af_glyph_hints_align_strong_points) [FT_DEBUG_AUTOFIT]: Set

-	`before' and `after' information.

-

-2018-08-30  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] Overflow-resistant bitmap presetting.

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Implement it.

-

-2018-08-29  Armin Hasitzka  <[email protected]>

-

-	Fix numeric overflows.

-

-	* src/pshint/pshalgo.c (psh_hint_align, psh_hint_align_light,

-	psh_hint_table_find_strong_points): Fix numeric overflows.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10083

-

-2018-08-29  Werner Lemberg  <[email protected]>

-

-	[cff] Fix handling of `roll' op in old engine.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10080

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>

-	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use modulo for loop count, as

-	documented in the specification.

-

-2018-08-26  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttobjs.c (tt_size_read_bytecode): Trace CVT values.

-

-2018-08-26  Nikhil Ramakrishnan  <[email protected]>

-

-	* configure: Copy assets required by docwriter.

-

-	Copy directory `docs/reference/markdown' when FreeType is compiled in a

-	different directory.

-

-	Fixes `make refdoc' if builddir != srcdir.

-

-	Reported as

-

-	  https://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00083.html

-

-2018-08-26  Werner Lemberg  <[email protected]>

-

-	* src/pshint/pshalgo.c (psh_hint_overlap): Fix numeric overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10057

-

-2018-08-26  Werner Lemberg  <[email protected]>

-

-	Minor tracing adjustments.

-

-	* src/base/ftstream.c (FT_Stream_EnterFrame, FT_Stream_ExitFrame):

-	Trace.

-

-	* src/truetype/ttgload.c (TT_Access_Glyph_Frame): Remove tracing.

-

-2018-08-26  Werner Lemberg  <[email protected]>

-

-	[truetype] Avoid nested frames.

-

-	Triggered by

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10054

-

-	* src/truetype/ttgload.c (load_truetype_glyph): Don't use variable

-	`opened_frame' to trace whether a frame must be closed at the end of

-	function: This fails because `TT_Vary_Apply_Glyph_Deltas' (which

-	gets called for space glyphs) uses a frame by itself.  Instead,

-	close the frame after loading the header, then use another frame for

-	the remaining part of the glyph later on.

-

-	Also avoid calling `tt_get_metrics' twice under some circumstances.

-

-2018-08-26  Werner Lemberg  <[email protected]>

-

-	Various minor clean-ups.

-

-	* src/base/ftapi.c: Remove.  Unused.

-	* src/base/Jamfile (_sources): Updated.

-

-	* src/base/ftstream.c (FT_Stream_ReleaseFrame): Remove redundant

-	code.

-

-2018-08-25  Nikhil Ramakrishnan  <[email protected]>

-

-	Convert documentation markup to Markdown.

-

-	It is the result of a GSoC 2018 project; this separate ChangeLog

-	commit covers the last four commits

-

-	  ae5d1a4cec37557f31aec270332cfe886a62f9a0

-	  53c69ce04faed3dcc68ca0f54cb8d703d8babf69

-	  195728d5ba38f34fb2c2c20807c01656f2f59b66

-	  c962db28ea59225f0105c03d907d4a9b71765687

-

-	* docs/reference/markdown/images/favico.ico,

-	docs/reference/markdown/javascripts/extra.js,

-	docs/reference/markdown/stylesheets/extra.css: New files.

-

-	* docs/reference/.gitignore, docs/reference/README: Updated.

-

-	* src/tools/docmaker/*: Removed.  It has been replaced with

-	`docwriter', a python package available at

-

-	  https://pypi.org/project/docwriter/

-

-	* Jamfile: Updated.

-	* builds/ansi/ansi-def.mk, builds/beos/beos-def.mk,

-	builds/dos/dos-def.mk, builds/os2/os2-def.mk (BIN),

-	builds/unix/unixddef.mk, builds/windows/win32-def.mk: New variable.

-

-	* builds/unix/configure.raw: Check for `python' and `pip'.

-	If not present, warn that `make refdoc' will fail.

-	* builds/unix/unix-def.in (PYTHON, PIP, BIN): New variables.

-

-	* builds/freetype.mk (PYTHON, PIP, VENV_NAME, VENV_DIR, ENV_PYTHON,

-	ENV_PIP): New variables.

-	(refdoc): Updated.

-	(refdoc-venv): New target.

-	(.PHONY): Updated.

-

-2018-08-23  Werner Lemberg  <[email protected]>

-

-	Add macros for handling over-/underflowing `FT_Int64' values.

-

-	* include/freetype/internal/ftcalc.h (ADD_INT64, SUB_INT64,

-	MUL_INT64, DIV_INT64) [FT_LONG64]: New macros.

-

-	* src/base/ftcalc.c (ft_corner_orientation) [FT_LONG64]: Use

-	`SUB_INT64' and `MUL_INT64'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10028

-

-2018-08-22  Werner Lemberg  <[email protected]>

-

-	[truetype] Improve legibility of `glyf' parsing.

-

-	* src/truetype/ttgload.c (ON_CURVE_POINT, X_SHORT_VECTOR,

-	Y_SHORT_VECTOR, REPEAT_FLAG, X_POSITIVE, SAME_X, Y_POSITIVE, SAME_Y,

-	OVERLAP_SIMPLE): New macros.

-	(TT_Load_Simple_Glyph): Use new macros to make code more readable.

-	Remove useless adjustment of `outline->tags' elements.

-

-2018-08-21  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/ttcpal.c (tt_face_load_cpal): Add missing safety check.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9981

-

-2018-08-18  Werner Lemberg  <[email protected]>

-

-	[psaux] Avoid slow PS font parsing in case of error.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9955

-

-	* src/psaux/psobjs.c (ps_parser_to_bytes): Set `parser->cursor' even

-	in case of error to avoid potential re-scanning.

-

-2018-08-18  Werner Lemberg  <[email protected]>

-

-	[cff] Fix heap buffer overflow in old engine.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9967

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

-	<cff_op_blend> [CFF_CONFIG_OPTION_OLD_ENGINE]: `num_designs' must be

-	non-zero.

-

-2018-08-16  Young Xiao  <[email protected]>

-

-	* builds/mac/ftmac.c (parse_fond): Fix buffer overrun.

-

-	Reported as bug #54515, duplicate of #43540.

-

-2018-08-16  Werner Lemberg  <[email protected]>

-

-	* builds/*/ftsystem.c (FT_COMPONENT): Updated also.

-

-2018-08-15  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf] Don't track duplicate encodings.

-

-	There is no harm except some umbiguity in broken fonts with duplicate

-	encodings.

-

-	* src/bdf/bdflib.c (_bdf_parse_glyphs): Remove duplicate tracking.

-	(_bdf_parse_t): Remove large `have' bitfield.

-

-2018-08-15  Werner Lemberg  <[email protected]>

-

-	Don't use `trace_' prefix for FT_COMPONENT arguments.

-

-	* include/freetype/internal/ftdebug.h (FT_TRACE_COMP,

-	FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix.

-	(FT_TRACE): Use `FT_TRACE_COMP'.

-

-	*/* (FT_COMPONENT): Updated.

-

-2018-08-14  Werner Lemberg  <[email protected]>

-

-	Use formatting string in FT_TRACEX calls for non-simple arguments.

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

-	<cff_op_hstem, cff_op_hintmask, cff_op_hlineto, cff_op_vhcurveto>:

-	Do it.

-

-	* src/psaux/pshints.c (cf2_hintmap_build): Ditto.

-

-	* src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_cmdHSTEM,

-	cf2_cmdVSTEM, cf2_cmdHLINETO, cf2_cmdRRCURVETO, cf2_cmdCALLSUBR,

-	cf2_escHSTEM3, cf2_cmdHINTMASK, cf2_cmdHVCURVETO>: Ditto.

-

-	* src/truetype/ttinterp.c (TT_RunIns): Ditto.

-

-2018-08-14  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf] Remove unused fields.

-

-	* src/bdf/bdf.h (bdf_font_t): Remove `nmod', `umod', and `modified',

-	which were set but never used.

-	* src/bdf/bdflib.c (_bdf_parse_{glyphs,properties}, bdf_load_font):

-	Updated accordingly.

-

-2018-08-14  Werner Lemberg  <[email protected]>

-

-	[cff] Fix another segv in old engine.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9872

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

-	[CFF_CONFIG_OPTION_OLD_ENGINE]: Disallow invalid T1 opcodes in

-	dictionaries.

-

-2018-08-14  Werner Lemberg  <[email protected]>

-

-	[cff] Fix missing error handling.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9865

-

-	* src/psaux/cffparse.c (cff_parser_run)

-	[CFF_CONFIG_OPTION_OLD_ENGINE]: Don't ignore return value of

-	`parse_charstrings_old'.

-

-2018-08-14  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf] Remove unused overflow storage.

-

-	* src/bdf/bdf.h (bdf_glyphlist_t): Remove this type.

-	(bdf_font_t): Remove `overflow' field.

-	* src/bdf/bdflib.c (bdf_free_font): Remove `overflow' freeing.

-

-2018-08-14  Werner Lemberg  <[email protected]>

-

-	[cff] Fix segv in old engine.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9864

-

-	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

-	<cff_op_random> [CFF_CONFIG_OPTION_OLD_ENGINE]: Use top dict's

-	`random' field directly if parsing dictionaries.

-

-2018-08-13  Alexei Podtelezhnikov  <[email protected]>

-

-	[bdf] Use unsigned types.

-

-	* src/bdf/bdf.h (bdf_glyph_t): Unsign `encoding'.

-	(bdf_font_t): Unsign `default_char'.

-	* src/bdf/bdfdrivr.h (BDF_encoding_el): Unsign `enc'.

-

-	* src/bdf/bdflib.c (_bdf_add_property, _bdf_parse_glyphs,

-	_bdf_parse_start): Updated accordingly.

-	* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Ditto.

-

-2018-08-13  Werner Lemberg  <[email protected]>

-

-	* src/type42/t42parse.c (t42_parse_sfnts): One more format check.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9832

-

-2018-08-11  Werner Lemberg  <[email protected]>

-

-	* src/base/ftcalc.c (FT_Matrix_Check): Fix integer overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9811

-

-2018-08-10  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/sfnt/ttsbit.c (tt_sbit_decoder_load_compound): Follow specs.

-

-2018-08-10  Ben Wagner  <[email protected]>

-

-	* src/sfnt/sfobjs.c (sfnt_done_face): Fix memory leak (#54435).

-

-2018-08-10  Werner Lemberg  <[email protected]>

-

-	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Improve tracing.

-

-2018-08-10  Werner Lemberg  <[email protected]>

-

-	Fix clang warnings.

-

-	* src/base/ftdebug.c (ft_trace_level_enabled,

-	ft_trace_level_disabled): Add `static' keyword.

-

-2018-08-09  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster, smooth] Reinstate bitmap size limits.

-

-	This again moves outline and bitmap size checks one level up.

-

-	* src/base/ftoutln.c (FT_Outline_Render): Explicitly reject enormous

-	outlines.

-	* src/raster/ftrend1.c (ft_raster1_render): Reject enormous bitmaps

-	and, therefore, outlines that require them.

-	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.

-

-	* src/raster/ftraster.c (ft_black_render): Remove outline size checks.

-	* src/smooth/ftgrays.c (gray_raster_render): Ditto.

-	[STANDALONE]: Remove `FT_Outline_Get_CBox' copy.

-

-2018-08-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf] Revert massive unsigning.

-

-2018-08-08  Werner Lemberg  <[email protected]>

-

-	[smooth] Improve tracing.

-

-	* src/smooth/ftgrays.c (gray_convert_glyph_inner): Only use tracing

-	if called the first time.

-	(gray_convert_glyph): Updated.

-

-2018-08-08  Werner Lemberg  <[email protected]>

-

-	Add internal functions `FT_Trace_Disable' and `FT_Trace_Enable'.

-

-	It sometimes makes sense to suppress tracing informations, for

-	example, if it outputs identical messages again and again.

-

-	* include/freetype/internal/ftdebug.h: Make `ft_trace_levels' a

-	pointer.

-	(FT_Trace_Disable, FT_Trace_Enable): New declarations.

-

-	* src/base/ftdebug.c (ft_trace_levels): Rename to...

-	(ft_trace_levels_enabled): ... this.

-	(ft_trace_levels_disabled): New array.

-	(ft_trace_levels): New pointer.

-	(FT_Trace_Disable, FT_Trace_Enable): Implement.

-	(ft_debug_init): Updated.

-

-2018-08-08  Werner Lemberg  <[email protected]>

-

-	Debugging improvements.

-

-	* src/base/ftobjs.c (pixel_modes): Move this array to top level

-	from ...

-	(FT_Load_Glyph): ... here.

-	(FT_Render_Glyph_Internal): Use `width' x `height' in trace message.

-	Use `pixel_modes'.

-

-2018-08-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf] Massive unsigning (part 2).

-

-	Treat all size related properties as unsigned values.

-

-	* src/pcf/pcf.h (PCF_ParsePropertyRec): Use unsigned `name' and

-	`value'.

-	* src/pcf/pcfread.c (pcf_get_properties, pcf_load_font): Updated

-	parsing code and handling of AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE,

-	RESOLUTION_X and RESOLUTION_Y.

-

-2018-08-08  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf] Massive unsigning (part 1).

-

-	Unofficial specifications hesitate to use unsigned 32-bit integers.

-	Negative values caused a lot of trouble in the past and it is safer

-	and easier to treat some properties as unsigned.

-

-	* src/pcf/pcf.h (PCF_AccelRec): Use unsigned values for `fontAscent',

-	`fontDescent', and `maxOverlap'.

-	* src/pcf/pcfread.c (pcf_load_font, pcf_get_accel): Updated.

-	* src/pcf/pcfdrivr.c (PCF_Glyph_Load, PCF_Size_Select,

-	PCF_Size_Request): Updated.

-

-2018-08-07  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/pcf/pcfread.c (pcf_get_bitmaps): Unsign `offsets' and

-	`bitmapSizes'.

-

-2018-08-06  Werner Lemberg  <[email protected]>

-

-	* devel/ftoption.h: Synchronize with main `ftoption.h'.

-

-2018-08-06  Alexei Podtelezhnikov  <[email protected]>

-

-	[pcf] Use unsigned types.

-

-	* src/pcf/pcf.h (PCF_Encoding): Use unsigned `enc'.

-	* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Ditto.

-	* src/pcf/pcfread.c (pcf_get_encodings): Use unsigned types.

-

-2018-08-05  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgload.c (compute_glyph_metrics): Fix overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/chromium/issues/detail?id=777151

-

-2018-08-04  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttinterp.c (opcode_name): Fix typos.

-

-2018-08-04  Werner Lemberg  <[email protected]>

-

-	Fix clang warnings.

-

-	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Fix type of

-	`orientation'.

-

-	* src/gxvalid/gxvcommn.c (gx_lookup_value_read): Fix signature.

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Fix type of some variables.

-	Add cast.

-

-	* src/type1/t1load.c (parse_weight_vector): Fix cast.

-

-2018-07-31  Werner Lemberg  <[email protected]>

-

-	* src/cid/cidtoken.h: Handle `XUID' keyword.

-

-2018-07-31  Werner Lemberg  <[email protected]>

-

-	[cid] Trace PostScript dictionaries.

-

-	* src/cid/cidload.c: Include FT_INTERNAL_POSTSCRIPT_AUX_H.

-	(cid_load_keyword, cid_parse_font_matrix, parse_fd_array,

-	parse_expansion_factor, cid_parse_dict): Add tracing calls.

-	(parse_font_name): New function to trace `/FontName' keywords in

-	/FDArray dict.

-	(cid_field_records): Register `parse_font_name'.

-

-2018-07-30  Werner Lemberg  <[email protected]>

-

-	[cff] Fix typo.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9409

-

-	* src/cff/cffdrivr.c (cff_get_cid_from_glyph_index): Fix boundary

-	check.

-

-2018-07-29  Werner Lemberg  <[email protected]>

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Another thinko.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9608

-

-2018-07-28  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Fix Harmony memory management.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9501

-

-	* src/smooth/ftgrays.c (ft_smooth_render_generic): Restore buffer

-	after each rendering in case of failure.

-

-2018-07-28  Werner Lemberg  <[email protected]>

-

-	[type1] Avoid segfaults with `FT_Get_PS_Font_Value'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9610

-

-	* src/type1/t1driver.c (t1_ps_get_font_value): Protect against NULL.

-

-2018-07-27  Werner Lemberg  <[email protected]>

-

-	[truetype] Make `TT_Set_MM_Blend' idempotent (#54388).

-

-	* src/truetype/ttgxvar.c (tt_set_mm_blend): Correctly set

-	`face->doblend' if the current call to the function yields the same

-	blend coordinates as the previous call.

-

-2018-07-27  Werner Lemberg  <[email protected]>

-

-	[psaux, type1]: More tracing improvements.

-

-	* src/psaux/psintrp.c (cf2_interpT2CharString): Trace skipped

-	outline commands.

-

-	* src/psaux/t1decode.c (t1_decoder_parse_charstring): Fix

-	missing case.

-	(t1_decoder_parse_metrics): Make tracing output more compact.

-

-	* src/type1/t1gload.c (T1_Compute_Max_Advance): Be less verbose.

-	(T1_Get_Advances): Add tracing.

-

-2018-07-25  Werner Lemberg  <[email protected]>

-

-	[psaux, type1] Trace PostScript dictionaries and other things.

-

-	The tracing of /Encoding, /Subrs, and /Charstrings is rudimentary

-	right now.

-

-	* src/psaux/psobjs.c (ps_parser_load_field,

-	ps_parser_load_field_table): Add tracing calls.

-

-	* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Make tracing

-	output more compact.

-

-	* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances): Add

-	tracing messages.

-

-	* src/type1/t1load.c (parse_blend_axis_types,

-	parse_blend_design_positions, parse_blend_design_map,

-	parse_weight_vector, t1_load_keyword, t1_parse_font_matrix,

-	parse_encoding, parse_subrs, parse_charstrings, T1_Open_Face): Add

-	tracing calls.

-

-	* src/type1/t1objs.c (T1_Face_Init): Add tracing call.

-

-	* src/sfnt/sfobjs.c (sfnt_init_face): Make tracing message more

-	verbose.

-

-2018-07-25  Werner Lemberg  <[email protected]>

-

-	Fix minor ASAN run-time warnings.

-

-	* src/base/ftutil.c (ft_mem_alloc, ft_mem_realloc): Only call

-	`FT_MEM_ZERO' if we actually have a buffer.

-	(ft_mem_dup): Only call `ft_memcpy' if we actually have a buffer.

-

-2018-07-24  Alexei Podtelezhnikov  <[email protected]>

-

-	[build] Fortify dllexport/dllimport attributes (#53969,#54330).

-

-	We no longer use predefined _DLL, which can be defined for static

-	builds too with /MD. We use DLL_EXPORT and DLL_IMPORT instead,

-	following libtool convention.

-

-	* CMakeLists.txt [WIN32], builds/windows/vc2010/freetype.vcxproj:

-	Define DLL_EXPORT manually.

-

-	* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,

-	builds/vms/ftconfig.h, builds/windows/vc2010/index.html,

-	src/base/ftver.rc: /_DLL/d, s/FT2_DLLIMPORT/DLL_IMPORT/.

-

-2018-07-24  Werner Lemberg  <[email protected]>

-

-	[type1] Check relationship between number of axes and designs.

-

-	For Multiple Masters fonts we don't support intermediate designs;

-	this implies that

-

-	  number_of_designs == 2 ^^ number_of_axes

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9557

-

-	* src/type1/t1load.c (T1_Open_Face): Ensure above constraint.

-	(T1_Get_MM_Var): Remove now redundant test.

-

-2018-07-24  Hin-Tak Leung  <[email protected]>

-

-	[truetype] Match ttdebug's naming of instruction mnemonics.

-

-	* src/truetype/ttinterp.c: The form used in ttdebug,

-	"MDRP[G,B,W,?]", etc., is slightly more readable than

-	"MDRP[00,01,02,03]".

-

-2018-07-24  Werner Lemberg  <[email protected]>

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Thinko.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9561

-

-2018-07-22  Werner Lemberg  <[email protected]>

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Check index of defaultChar.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9527

-

-2018-07-22  Werner Lemberg  <[email protected]>

-

-	* src/pcf/pcfread.c (pcf_load_font): Fix number of glyphs.

-

-	This is an oversight of the module change 2018-07-21.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9524

-

-2018-07-22  Werner Lemberg  <[email protected]>

-

-	[cid] Sanitize `BlueShift' and `BlueFuzz'.

-

-	This code is taken from the type1 module.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9510

-

-	* src/cid/cidload.c (parse_fd_array): Set some private dict default

-	values.

-	(cid_face_open): Do the sanitizing.

-	Fix some tracing messages.

-

-2018-07-21  Werner Lemberg  <[email protected]>

-

-	[pcf] Fix handling of the undefined glyph.

-

-	This change makes the driver use the `defaultChar' property of PCF

-	files.

-

-	* src/pcf/pcf.h (PCF_FaceRec): Change type of `defaultChar' to

-	unsigned.

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Read `defaultChar' as

-	unsigned.

-	Validate `defaultChar'.

-	If `defaultChar' doesn't point to glyph index zero, swap glyphs with

-	index zero and index `defaultChar' and adjust the encodings

-	accordingly.

-

-	* src/pcf/pcfdrivr.c (pcf_cmap_char_index, pcf_cmap_char_next,

-	PCF_Glyph_Load): Undo change from 2002-06-16 which always enforced

-	the first character in the font to be the default character.

-

-2018-07-20  Armin Hasitzka  <[email protected]>

-

-	Move the legacy fuzz target to the `freetype-testing' repository.

-

-	It can now be found at

-

-	  https://github.com/freetype/freetype2-testing/tree/master/fuzzing/src/legacy

-

-	* src/tools/ftfuzzer: Remove this folder and its contents from the

-	repository.

-

-2018-07-20  Werner Lemberg  <[email protected]>

-

-	[cff] Avoid left-shift of negative numbers (#54322).

-

-	* src/cff/cffgload.c (cff_slot_load): Use multiplication.

-

-2018-07-17  Werner Lemberg  <[email protected]>

-

-	Allow FT_ENCODING_NONE for `FT_Select_Charmap'.

-

-	This is a valid encoding tag for BDF, PCF, and Windows FNT, and

-	there is no reason to disallow it for these formats.

-

-	* src/base/ftobjs.c (FT_Select_Charmap): Implement it.

-

-2018-07-17  Werner Lemberg  <[email protected]>

-

-	* src/pcf/pcfread.c (pcf_get_encodings): Trace `defaultChar'.

-

-2018-07-16  Armin Hasitzka  <[email protected]>

-

-	* include/freetype/internal/ftcalc.h: Add macros for handling

-	harmless over-/underflowing `FT_Int' values.

-

-	* src/sfnt/sfdriver.c (fixed2float): Fix negation of

-	`(int)(-2147483648)'.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9423

-

-2018-07-16  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgxvar.c (tt_set_mm_blend): Fix off-by-one error.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9412

-

-2018-07-12  Werner Lemberg  <[email protected]>

-

-	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Init `cbox'.

-

-	Taken from patch #9667, written by Steve Langasek

-	<[email protected]>.

-

-	This fixes a build failure (most probably a bug in gcc) on ppc64el

-	when building with -O3.

-

-2018-07-05  Werner Lemberg  <[email protected]>

-

-	Fix typo (#54238).

-

-	* src/base/ftcolor.c (FT_Palette_Set_Foreground_Color)

-	[!TT_CONFIG_OPTION_COLOR_LAYERS]: Add return value.

-

-2018-07-05  Werner Lemberg  <[email protected]>

-

-	Adjust table size comparisons (#54242).

-

-	* src/sfnt/ttcpal.c (tt_face_load_cpal): Implement it.

-

-2018-07-05  Werner Lemberg  <[email protected]>

-

-	Fix more 32bit issues (#54208).

-

-	* src/cff/cffload.c (cff_blend_build_vector): Convert assertion into

-	run-time error.

-

-	* src/truetype/ttgxvar.c (ft_var_to_normalized): Protect against

-	numeric overflow.

-

-2018-07-04  Werner Lemberg  <[email protected]>

-

-	Fix 32bit build warnings (#54239).

-

-	* src/base/ftbitmap.c (FT_Bitmap_Blend): Add casts to avoid signed

-	vs. unsigned comparisons.

-

-	* srb/sfnt/ttcolr.c (tt_face_get_colr_layer): Ditto.

-

-2018-07-02  Jeff Carey  <[email protected]>

-

-	* src/psnames/psmodule.c (ps_unicodes_init): Fix alloc debugging.

-

-2018-07-02  Werner Lemberg  <[email protected]>

-

-	s/palette_types/palette_flags/.

-

-	Suggested by Behdad.

-

-2018-07-02  Werner Lemberg  <[email protected]>

-

-	Make `FT_Get_Color_Glyph_Layer' return FT_Bool.

-

-	* include/freetype/freetype.h, src/base/ftobjs.c

-	(FT_Get_Color_Glyph_Layer, FT_Render_Glyph_Internal): Updated.

-

-	* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func),

-	src/sfnt/ttcolr.h, src/sfnt/ttcolr.c (tt_face_get_colr_layer):

-	Updated.

-

-2018-07-01  Werner Lemberg  <[email protected]>

-

-	* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Guard SFNT function.

-

-	Reported by Behdad.

-

-2018-06-28  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/fttrigon.c (FT_Tan): Improve accuracy.

-	(FT_Vector_Rotate): Simplify.

-

-2018-06-28  Alexei Podtelezhnikov  <[email protected]>

-

-	* src/base/ftobjs.c (FT_Set_Charmap): Robustify.

-

-2018-06-25  Werner Lemberg  <[email protected]>

-

-	[truetype] Fix memory leak.

-

-	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Add initializers.

-	Fix typo in `goto' destination.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9071

-

-2018-06-25  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgxvar.c (tt_face_vary_cvt): Add initializers.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9070

-

-2018-06-24  Werner Lemberg  <[email protected]>

-

-	[truetype] Increase precision while applying VF deltas.

-

-	It turned out that we incorrectly round CVT and glyph point deltas

-	before accumulation, leading to severe positioning errors if there

-	are many delta values to sum up.

-

-	Problem reported by Akiem Helmling <[email protected]> and analyzed

-	by Behdad.

-

-	* src/truetype/ttgxvar.c (ft_var_readpackeddelta): Return deltas in

-	16.16 format.

-	(tt_face_var_cvt): Collect deltas in `cvt_deltas', which is a 16.16

-	format array, and add the accumulated values to the CVT at the end

-	of the function.

-	(TT_Vary_Apply_Glyph_Deltas): Store data in `points_org' and

-	`points_out' in 16.16 format.

-	Collect deltas in `point_deltas_x' and `point_deltas_y', which are

-	16.16 format arrays, and add the accumulated values to the glyph

-	coordinates at the end of the function.

-

-2018-06-24  Werner Lemberg  <[email protected]>

-

-	New base function `FT_Matrix_Check' (#54019).

-

-	* src/base/ftcalc.c (FT_Matrix_Check): New base function to properly

-	reject degenerate font matrices.

-

-	* include/freetype/internal/ftcalc.h: Updated.

-

-	* src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c

-	(cid_parse_font_matrix), src/type1/t1load.c (t1_parse_font_matrix),

-	src/type42/t42parse.c (t42_parse_font_matrix): Use

-	`FT_Matrix_Check'.

-

-2018-06-23  Werner Lemberg  <[email protected]>

-

-	Fix typo.

-

-	Reported by Behdad.

-

-	* src/base/ftcolor.c (FT_Palette_Data_Get)

-	[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.

-

-2018-06-21  Werner Lemberg  <[email protected]>

-

-	s/FT_PALETTE_USABLE_WITH_/FT_PALETTE_FOR_/.

-

-	* include/freetype/ftcolor.h, include/freetype/internal/sfnt.h,

-	src/sfnt/ttcolr.c: Do it.

-

-2018-06-19  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix CPAL heap buffer overflow.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8968

-

-	* src/sfnt/ttcpal.c (tt_face_load_cpal): Guard CPAL version 1

-	offsets.

-

-2018-06-19  Werner Lemberg  <[email protected]>

-

-	Doh.  Don't use CPAL or COLR data if tables are missing.

-

-	Reported by Alexei.

-

-	* src/sfnt/ttcolr.c (tt_face_get_colr_layer): Return immediately if

-	`colr' is NULL.

-

-	* src/sfnt/ttcpal.c (tt_face_palette_set): Return immediately, if

-	`cpal' is NULL.

-

-2018-06-17  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] Introduce `FT_New_Glyph'.

-

-	This function facilitates access to full capabilities of FreeType

-	rendering engine for custom glyphs. This can be quite useful for

-	consistent rendering of mathematical and chemical formulas, e.g.

-

-	  https://bugs.chromium.org/p/chromium/issues/detail?id=757078

-

-	* include/freetype/ftglyph.h, src/base/ftglyph.c (FT_New_Glyph): New

-	function.

-

-2018-06-17  Armin Hasitzka  <[email protected]>

-

-	[bdf] Fix underflow of an unsigned value.

-

-	bdflib.c:1562 could be reached with `font->glyphs_used == 0'.  That

-	caused an underflow of the unsigned value which results in undefined

-	behaviour.

-

-	* src/bdf/bdflib.c (_bdf_parse_glyphs): Bail out earlier than before

-	if the `ENCODING' keyword cannot be found.

-

-2018-06-17  Werner Lemberg  <[email protected]>

-

-	[base] Add tracing for `FT_Bitmap_Blend'.

-

-	* include/freetype/internal/fttrace.h (trace_bitmap): New

-	enumeration.

-

-	* src/base/ftbitmap.c (FT_COMPONENT): Define.

-	(FT_Bitmap_Blend): Add `FT_TRACE5' calls.

-

-2018-06-17  Werner Lemberg  <[email protected]>

-

-	s/trace_bitmap/trace_checksum/.

-

-	* include/freetype/internal/fttrace.h: s/bitmap/checksum/.

-

-	* src/base/ftobjs.c (FT_COMPONENT): s/trace_bitmap/trace_checksum/.

-	Adjust code.

-

-2018-06-16  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix color glyph layer loading.

-

-	* src/sfnt/ttcolr.c (Colr): Add `table_size' field.

-	(tt_face_load_colr): Set it.

-	(tt_face_get_colr_layer): Check pointer limit for layer entries.

-

-2018-06-16  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix color palette loading.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8933

-

-	* src/sfnt/ttcpal.c (Cpal): Add `table_size' field.

-	(tt_face_load_cpal): Set it.

-	(tt_face_palette_set): Check pointer limit for color entries.

-

-2018-06-16  Werner Lemberg  <[email protected]>

-

-	* src/base/ftbitmap.c (FT_Bitmap_Blend): Avoid integer overflow.

-

-2018-06-16  Werner Lemberg  <[email protected]>

-

-	Add `FT_Bitmap_Blend' API.

-

-	Still missing: Support for negative bitmap pitch and subpixel offset

-	of source bitmap.

-

-	* include/freetype/ftbitmap.h, src/base/ftbitmap.c

-	(FT_Bitmap_Blend): New function.

-

-2018-06-14  Werner Lemberg  <[email protected]>

-

-	Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'.

-

-	This avoids any additional allocation of COLR related structures in

-	a glyph slot.

-

-	* include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec,

-	FT_Get_GlyphLayers): Removed.

-

-	* include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed.

-	(FT_Slot_InternalRec): Remove `color_layers'.

-

-	* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func):

-	Removed.

-	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove

-	`load_colr_layer'.

-

-	* src/base/ftobjs.c (ft_glyph_slot_done): Updated.

-	(FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'.

-	(FT_Get_GlyphLayers): Removed.

-

-	* src/sfnt/sfdriver.c (sfnt_interface): Updated.

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed.

-	* src/sfnt/ttcolr.h: Updated.

-

-	* src/truetype/ttgload.c (TT_Load_Glyph): Updated.

-

-2018-06-14  Werner Lemberg  <[email protected]>

-

-	Provide iterative API to access `COLR' data.

-

-	This solution doesn't store any data in an `FT_GlyphSlot' object.

-

-	* include/freetype/freetype.h (FT_LayerIterator): New structure.

-	(FT_Get_Color_Glyph_Layer): New function.

-

-	* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func): New

-	function type.

-	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.

-

-	* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Implement it.

-

-	* src/sfnt/ttcolr.c (tt_face_get_colr_layer): New function.

-	* src/sfnt/ttcolr.h: Updated.

-

-	* src/sfnt/sfdriver.c (sfnt_interface): Updated.

-

-2018-06-14  Werner Lemberg  <[email protected]>

-

-	Add glyph index and glyph load flags to glyph slot.

-

-	* include/freetype/freetype.h (FT_GlyphSlotRec): Rename unused

-	`reserved' field to `glyph_index'.

-

-	* include/freetype/internal/ftobjs.h (FT_Slot_InternalRec): Add

-	`load_flags' field.

-

-	* src/base/ftobjs.c (FT_Load_Glyph): Set new fields.

-

-2018-06-14  Werner Lemberg  <[email protected]>

-

-	[sfnt] Move `CPAL' stuff into separate files.

-

-	* src/sfnt/sfdriver.c: Include `ttcpal.h'.

-	* src/sfnt/sfnt.c: Include `ttcpal.c'.

-

-	* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: Move CPAL stuff to ...

-	* src/sfnt/ttcpal.c, src/sfnt/ttcpal.c: ... these new files.

-

-	* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC):

-	Updated.

-

-	* include/freetype/internal/fttrace.h: Add support for `colr' and

-	`cpal'.

-	Sort entries.

-

-2018-06-13  Werner Lemberg  <[email protected]>

-

-	[sfnt] Separate `CPAL' and `COLR' table handling.

-

-	Later on we want to support the `SVG' table also, which needs `CPAL'

-	(but not `COLR').

-

-	* include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_cpal'

-	and `free_cpal' fields.

-	(FT_DEFINE_SFNT_INTERFACE): Updated.

-

-	* include/freetype/internal/tttypes.h (TT_FaceRec): Replace

-	`colr_and_cpal' fields with `cpal' and `colr'.

-

-	* src/sfnt/sfdriver.c (sfnt_interface): Updated.

-

-	* src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Updated.

-

-	* src/sfnt/ttcolr.c (Colr, Cpal): Add `table' field.

-	(ColrCpal): Removed.

-	(tt_face_load_colr): Split off CPAL handling into...

-	(tt_face_load_cpal): ... this new function.

-	(tt_face_free_colr): Split off CPAL handling into...

-	(tt_face_free_cpal): ... this new function.

-	(tt_face_load_colr_layers, tt_face_palette_set): Updated.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-	* src/truetype/ttgload.c (TT_Load_Glyph): Updated.

-

-2018-06-12  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix `sizeof' thinko.

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_palette_set): Don't

-	use `sizeof' for computing array limit.

-

-2018-06-12  Werner Lemberg  <[email protected]>

-

-	Finish CPAL/COLR support (4/4).

-

-	* src/sfnt/ttcolr.c (tt_face_find_color): Removed.

-	(tt_face_colr_blend_layer): Use `face->palette' instead of calling

-	`tt_face_find_color'.

-	Use and set text foreground color.

-

-2018-06-12  Werner Lemberg  <[email protected]>

-

-	Finish CPAL/COLR support (3/4).

-

-	* src/base/ftcolor.c: Include FT_INTERNAL_SFNT_H.

-	(FT_Palette_Select, FT_Palette_Set_Foreground_Color): Implement

-	functions.

-

-2018-06-12  Werner Lemberg  <[email protected]>

-

-	Finish CPAL/COLR support (2/4).

-

-	* src/sfnt/ttcolr.c (tt_face_palette_set): New function.

-	(tt_face_load_colr): Allocate `face->palette' and call

-	`tt_face_palette_set'.

-	Adjust return error code in case of error.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-	* include/freetype/internal/sfnt.h (TT_Set_Palette_Func): New

-	function type.

-	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.

-

-	* src/sfnt/sfdriver.c (sfnt_interface), src/sfnt/sfobjs.c

-	(sfnt_done_face): Updated.

-

-2018-06-12  Werner Lemberg  <[email protected]>

-

-	Finish CPAL/COLR support (1/4).

-

-	* include/freetype/internal/tttypes.h (TT_FaceRec): New fields

-	`palette_index', `palette', `have_foreground_color' and

-	`foreground_color'.

-

-2018-06-12  Werner Lemberg  <[email protected]>

-

-	[sfnt] Minor.

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr_layers):

-	s/palette_index/palette_entry_index/ for consistency.

-	Adjust return error code in case of error.

-

-2018-06-11  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Clean up.

-

-	* src/raster/ftraster.c (black_TWorker, SCALED, Set_High_Precision):

-	Clean up after 5-level gray removal (8dc8635874).

-	(Vertical_Sweep_Span): Be brief.

-

-2018-06-10  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix compiler warnings.

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_load_colr_layers,

-	tt_face_colr_blend_layer): Add `NULL' initializers.

-

-2018-06-10  Werner Lemberg  <[email protected]>

-

-	s/FT_Palette/FT_Palette_Data/, s/palette/palette_data/.

-

-	* include/freetype/ftcolor.h, include/freetype/internal/tttypes.h,

-	src/base/ftcolor.c, src/sfnt/sfobjs.c, src/sfnt/ttcolr.c: Updated.

-

-2018-06-10  Nikolaus Waxweiler  <[email protected]>

-

-	CMakeLists: also accept IOS_PLATFORM=SIMULATOR64

-

-	This might be needed to build FreeType for the iOS simulator. See

-	https://savannah.nongnu.org/bugs/index.php?54048. Patch contributed

-	by Steve Robinson.

-

-	* CMakeLists.txt: Accept IOS_PLATFORM=SIMULATOR64

-

-2018-06-10  Werner Lemberg  <[email protected]>

-

-	Implement `FT_Palette_Get'.

-

-	* src/base/ftcolor.c: New file.

-

-	* src/base/Jamefile (_sources), src/base/rules.mk (BASE_SRC),

-	src/base/ftbase.c: Add `ftcolor.c'.

-

-2018-06-10  Werner Lemberg  <[email protected]>

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr): Improve overflow checks.

-

-2018-06-09  Alexei Podtelezhnikov  <[email protected]>

-

-	[raster] Deal with pitch sign earlier.

-

-	* src/raster/ftraster.c (black_TWorker): Remove unused `traceG',

-	s/bTarget/bOrigin/.

-	(Render_Glyph): Set `ras.bOrigin' at the bottom-left corner.

-	(Vertical_Sweep_Init, {Vertical,Horizontal}_Sweep_{Span,Drop}):

-	Updated accordingly.

-

-2018-06-09  Werner Lemberg  <[email protected]>

-

-	[sfnt] Read `CPAL' version 1 tables.

-

-	* include/freetype/internal.tttypes.h: Include FT_COLOR_H.

-	(TT_FaceRec): Add `palette' field.

-

-	* src/sfnt/ttcolr.c: Include FT_COLOR_H.

-	(Cpal): Remove all data covered by the new `palette' field in

-	`TT_FaceRec'.

-	(tt_face_load_colr): Updated.

-	Read `CPAL' version 1 data.

-	(tt_face_load_colr_layers, tt_face_find_color): Updated.

-

-	* src/sfnt/sfobjs.c (sfnt_done_face): Free glyph color palette data.

-

-2018-06-07  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] API for Harmony LCD rendering.

-

-	This introduces `FT_Library_SetLcdGeometry' for setting up arbitrary

-	LCD subpixel geometry including non-striped patterns.

-

-	* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): New function.

-	* include/freetype/ftlcdfil.h: Document it.

-	* include/freetype/freetype.h: Minor.

-	* include/freetype/ftchapters.h: Minor.

-

-2018-06-06  Werner Lemberg  <[email protected]>

-

-	ftcolor.h: Redesign API.

-

-	While going to implement it I noticed that I need access to most of

-	the `CPAL' elements; I thus plan to add a `cpal' field to

-	`TT_FaceRec', which makes most of the previously suggested API

-	functions obsolete because the fields will be directly accessible.

-

-2018-06-06  Parth Wazurkar  <[email protected]>

-

-	[bdf, pcf] Remove deprecated FT_FACE_FLAG_FAST_GLYPHS flag.

-

-	* src/bdf/bdfdrivr.c (BDF_Face_Init): Remove deprecated

-	FT_FACE_FLAG_FAST_GLYPHS flag.

-

-	* src/pcf/pcfread.c (pcf_load_font): Remove deprecated

-	FT_FACE_FLAG_FAST_GLYPHS flag.

-

-2018-06-06  Werner Lemberg  <[email protected]>

-

-	[smooth, raster] Limit bitmap size (#54019).

-

-	* src/raster/ftraster.c [STANDALONE] (FT_Outline_Get_CBox): Add

-	function.

-	[!STANDALONE]: Include FT_OUTLINE_H.

-	(ft_black_render): Compute CBox and reject glyphs larger than

-	0xFFFF x 0xFFFF.

-

-	* src/smooth/ftgrays.c (gray_raster_render): Reject glyphs larger

-	than 0xFFFF x 0xFFFF.

-

-2018-06-03  Armin Hasitzka  <[email protected]>

-

-	* src/smooth/ftgrays.c (gray_convert_glyph): Remove unused variables.

-

-2018-06-03  Werner Lemberg  <[email protected]>

-

-	* src/tools/glnames.py (main): Emit header in `light' comment style.

-

-2018-06-02  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Attempt to mitigate bug #54019.

-

-	The robust rendering of estra large glyphs came with unbearable cost.

-	The old way of bisecting should fail but fail faster.

-

-	* src/smooth/ftgrays.c (gray_convert_glyph): Switch back to bisecting

-	in y-direction.

-

-2018-06-02  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttinterp.c (Ins_MIRP): Use SUB_LONG; avoid FT_ABS.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8706

-

-2018-06-02  Werner Lemberg  <[email protected]>

-

-	* src/autofit/afwarp.h: Use AF_CONFIG_OPTION_USE_WARPER (#54033).

-

-2018-05-31  Werner Lemberg  <[email protected]>

-

-	* src/raster/ftraster.c (black_TWorker_): Remove `gTarget' field.

-

-	This is no longer used.

-

-2018-05-31  Werner Lemberg  <[email protected]>

-

-	[sfnt] Get colors from `CPAL' table in right order (#54015).

-

-	* src/sfnt/ttcolr.c (tt_face_find_color): Fix it.

-

-2018-05-30  Werner Lemberg  <[email protected]>

-

-	ftcolor.h: Improve API design, fix typos (#54011, #54014).

-

-	* include/freetype/ftcolor.h (FT_Palette_Get_Names): Replace with...

-	(FT_Palette_Get_Name_IDs): ... this function.

-	(FT_Palette_Get_Entry_Names): Replace with...

-	(FT_Palette_Get_Entry_Name_IDs): ... this function

-	s/FT_Palette_Set_Foreground_COlor/FT_Palette_Set_Foreground_Color/.

-

-2018-05-30  Armin Hasitzka  <[email protected]>

-

-	Beautify a3cfed5e87232c933bdc64f43e8ebebcfd18b41b.

-

-	* src/autofit/afloader.c (af_loader_load_glyph): Move the

-	initialisationand declaration of variables into the if-block.

-

-2018-05-30  Armin Hasitzka  <[email protected]>

-

-	Fix pointer underflow.

-

-	The declaration of `edge2' can be reached with `edge1 == NULL' and

-	`axis->edges == 0' which results in undefined behaviour.

-

-	* src/autofit/afloader.c (af_loader_load_glyph): Initialise `edge2'

-	after checking `axis->num_edges > 1'.  `edge1 != NULL' can be assumed.

-

-2018-05-30  Werner Lemberg  <[email protected]>

-

-	Various minor color fixes.

-

-	* include/freetype/config/ftheader.h (FT_COLOR_H): New macro.

-

-	* include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change

-	type of `load_flags' to `FT_Int32'.

-

-	* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change

-	type of `idx' to `FT_UInt'.

-	(TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'.

-

-	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of

-	`load_flags' to `FT_Int32'.

-

-	* src/sfnt/ttcolr.c (find_base_glyph_record,

-	tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'.

-	(tt_face_find_color, tt_face_colr_blend_layer): Change type of

-	`color_index' to `FT_UInt'.

-	Fix signedness and type issues.

-

-	* src/sfnt/ttcolr.h: Updated.

-

-2018-05-25  Nikhil Ramakrishnan  <[email protected]>

-

-	[docmaker] Fix missing `Defined in (...)' under Windows/Cygwin.

-

-	This platform uses backslashes for paths, which docmaker didn't

-	understand correctly.

-

-	* src/tools/docmaker/tohtml.py (HtmlFormatter::blockEnter): Use

-	`os.path.normpath' to normalize the path for the platform being

-	used.

-

-2018-05-24  Alexei Podtelezhnikov  <[email protected]>

-

-	[smooth] Formalize Harmony LCD rendering.

-

-	This generalizes magic outline shifts that make Harmony LCD

-	rendering work in terms of precise two-dimensional RGB subpixel

-	positions. These coordinates are now set in time of the `smooth'

-	module initialization and later used to shift a glyph outline for

-	rendering. FT_RENDER_MODE_LCD and FT_RENDER_MODE_LCD_V use the same

-	coordinates. The letter, however, rotates them before using.

-	The LCD bitmap padding is also calculated using these coordinates.

-

-	* include/freetype/internal/ftobjs.h (FT_LibraryRec): New array field

-	`lcd_geometry'.

-	* src/base/ftlcdfil.c (ft_lcd_padding): Reworked.

-	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Updated accordingly.

-

-	* src/smooth/ftsmooth.c [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]

-	(ft_smooth_init): Initialize `lcd_geometry'.

-	(ft_smooth_render_generic): Formalize outline shifts.

-

-2018-05-22  Werner Lemberg  <[email protected]>

-

-	[truetype] Reject elements of composites with invalid glyph indices.

-

-	Reported as

-

-	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8413

-

-	* src/truetype/ttgload.c (TT_Load_Composite_Glyph): Implement it.

-

-2018-05-22  Werner Lemberg  <[email protected]>

-

-	* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Trace # of points.

-

-2018-05-20  Werner Lemberg  <[email protected]>

-

-	* include/freetype/ftcolor.h: New file.

-

-	This is an interface to the `CPAL' OpenType table.  No

-	implementation yet.

-

-2018-05-18  Alexei Podtelezhnikov  <[email protected]>

-

-	* include/freetype/internal/ftcalc.h (FT_MSB): Verified `_MSC_VER'.

-

-	Actually `_BitScanReverse' is available since VS2005.

-

-2018-05-18  Werner Lemberg  <[email protected]>

-

-	* include/freetype/internal/ftcalc.h (FT_MSB): Use `_MSC_VER' value.

-

-	Older VC versions don't provide `_BitScanReverse'.  We test for VC

-	2013.

-

-	Reported by John Emmas <[email protected]>.

-

-2018-05-17  Werner Lemberg  <[email protected]>

-

-	s/inline/__inline/ for MSVC.

-

-	Reported by John Emmas <[email protected]>.

-

-	* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Do it.

-

-2018-05-16  Werner Lemberg  <[email protected]>

-

-	Add function `FT_Get_GlyphLayers' to access `COLR' table data.

-

-	* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this

-	structure to...

-	* include/freetype/freetype.h (FT_Glyph_LayerRec): ... this

-	header file.

-	(FT_Glyph_Layer): New typedef.

-	Update code to use it where appropriate.

-

-	* src/base/ftobjs.c (FT_Get_GlyphLayers): New function.

-

-2018-05-15  Alexei Podtelezhnikov  <[email protected]>

-

-	[base] Fix mono bitmap presetting (#53896).

-

-	It is rather fundamental to set monochrome bitmap based on rounded

-	CBox because the b/w rasterizer turns on pixels when their centers are

-	inside the glyph outline. The dropout control is unpredictable and can

-	distort narrow glyphs if the bitmap is too wide.

-

-	Reported by Chris Liddell.

-

-	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): If BBox boundaries

-	are too close, adjust them before rounding.

-

-2018-05-15  Werner Lemberg  <[email protected]>

-

-	[psaux] Fix compiler warning (#53915).

-

-	* src/psaux/psft.c (cf2_freeT1SeacComponent): Do it.

-

-2018-05-15  Werner Lemberg  <[email protected]>

-

-	[sfnt] Fix memory leak in handling `COLR' data.

-

-	* src/truetype/ttgload.c (TT_Load_Glyph): Free old `layers' array

-	before reassigning allocated memory.

-	Only allocate `color_layers' if we don't have one already.

-

-2018-05-15  Werner Lemberg  <[email protected]>

-

-	[sfnt] If `COLR' is present, don't assume that all glyphs use it.

-

-	* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if

-	current glyph is not a `COLR' base glyph.

-

-	* src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate

-	`color_layers' if there are no color layers.

-

-2018-05-14  Werner Lemberg  <[email protected]>

-

-	* src/base/ftobjs.c (FT_Load_Glyph): Fix signature of `pixel_modes'.

-

-2018-05-14  Werner Lemberg  <[email protected]>

-

-	Provide dummy functions if `TT_CONFIG_OPTION_SFNT_NAMES' is not set.

-

-	* src/base/ftsnames.c [!TT_CONFIG_OPTION_SFNT_NAMES]: Implement it.

-

-2018-05-13  Werner Lemberg  <[email protected]>

-

-	* src/base/ftobjs.c (FT_Load_Glyph): Improve tracing.

-

-2018-05-13  Shao Yu Zhang  <[email protected]>

-	    Werner Lemberg  <[email protected]>

-

-	[sfnt] Preliminary support of colored layer outlines (#44689).

-

-	This commit enables OpenType's COLR/CPAL table handling; a typical

-	application are color emojis that can be scaled to any size.

-

-	If the color palette does not exist or is invalid, the rendering

-	step rasterizes the outline instead.  The current implementation

-	assumes that the foreground is black.

-

-	Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS.

-

-	There are still some issues with metrics; additionally, an API to

-	fetch color layers is missing.

-

-	* devel/ftoption.h, include/freetype/config/ftoption.h

-	(TT_CONFIG_OPTION_COLOR_LAYERS): New macro.

-

-	* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec,

-	FT_Colr_InternalRec): New structures.

-	(FT_Slot_InternalRec): Add `color_layers' field.

-

-	* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func,

-	TT_Blend_Colr_Func): New function types.

-	(SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer',

-	and `colr_blend' fields.

-

-	* include/freetype/internal/tttypes.h (TT_FaceRec): Add

-	`colr_and_cpal' field.

-

-	* include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New

-	macros.

-

-	* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files.

-

-	* src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal):

-	Handle glyph color layers.

-

-	* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add

-	`ttcolr.c'.

-

-	* src/sfnt/sfdriver.c: Include `ttcolr.h'.

-	(PUT_COLOR_LAYERS): New macro.

-	Update call to `FT_DEFINE_SFNT_INTERFACE'.

-

-	* src/sfnt/sfnt.c: Include `ttcolr.c'.

-

-	* src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables.

-	(sfnt_done_face): Updated.

-

-	* src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.

-

-2018-05-12  Arkady Shapkin  <[email protected]>

-

-	Use MS VC++'s _BitScanReverse to calculate MSB (patch #9636).

-

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

-	it.

-

-2018-05-10  Alan Coopersmith  <[email protected]>

-

-	Fix DLL compilation on Solaris.

-

-	AC_COMPILE_IFELSE only tries to compile a `*.c' to a `*.o'.  The

-	Solaris Studio 12.1 through 12.5 compilers see the

-	`-fvisibility=hidden' flag, but ignore it with a warning of:

-

-	  cc: Warning: Option -fvisibility=hidden passed to ld,

-	               if ld is invoked, ignored otherwise

-

-	AC_LINK_IFELSE does the compile and then tries to link the result,

-	at which point the Solaris linker will issue an error:

-

-	  ld: fatal: option '-fvisibility=hidden' is incompatible with

-	      building a dynamic executable

-

-	If we don't use AC_LINK_IFELSE to catch the error, then configure

-	will fail further tests which attempt to link, such as those testing

-	dependencies like `libbz2'.

-

-	Also, don't try adding `-fvisibility' if we have already added

-	`-xldscope', just use one of them, since Sun Studio 12 and earlier

-	compilers only issue a warning, and don't try passing through to the

-	linker to generate an error, so AC_LINK_IFELSE doesn't catch them.

-

-	Tested on Solaris 11.4 beta with compiler versions:

-

-	  Sun Studio 8 (Sun C 5.5)

-	  Sun Studio 10 (Sun C 5.7)

-	  Sun Studio 11 (Sun C 5.8)

-	  Sun Studio 12 (Sun C 5.9)

-	  Sun Studio 12.1 (Sun C 5.10)

-	  Oracle Solaris Studio 12.2 (Sun C 5.11)

-	  Oracle Solaris Studio 12.3 (Sun C 5.12)

-	  Oracle Solaris Studio 12.4 (Sun C 5.13)

-	  Oracle Developer Studio 12.5 (Sun C 5.14)

-	  Oracle Developer Studio 12.6 (Sun C 5.15)

-	  gcc 5.5.0

-	  gcc 7.3.0

-

-	and verified the libfreetype.so.6 generated by each of those

-	compilers exported the same set of symbols.

-

-	* builds/unix/configure.raw: Implement it.

-

-2018-05-08  Werner Lemberg  <[email protected]>

-

-	[autofit] Avoid potential SEGV if running out of memory.

-

-	Problem reported by Shailesh Mistry <[email protected]>.

-

-	* src/autofit/afshaper.c (af_shaper_buf_create,

-	af_shaper_buf_destroy) [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Don't

-	allocate and free a four-byte buffer.  Instead, make those functions

-	no-ops; the calling functions will provide a pointer to a buffer

-	instead.

-

-	* src/autofit/afcjk.c (af_cjk_metrics_init_widths,

-	af_cjk_metrics_init_blues, af_cjk_metrics_check_digits),

-	src/autofit/aflatin.c (af_latin_metrics_init_widths,

-	af_latin_metrics_init_blues, af_latin_metrics_check_digits)

-	[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Use pointer to local variable for

-	`shaper_buf'.

-

-2018-05-07  Nikolaus Waxweiler  <[email protected]>

-

-	[cmake] Allow using project as subfolder in other project.

-

-	* CMakeLists.txt: Test for CMake build directory being different

-	from source directory.  Provide other parts of the build system

-	access the full include directory.

-

-2018-05-07  Werner Lemberg  <[email protected]>

-

-	[build] Suppress configure's `nothing to be done' message.

-

-	This is due to calling the configure script via `make' (within the

-	top-level `configure' wrapper script).  The same can happen for all

-	other secondary make targets that are used to only modify the

-	primary one, e.g., `make setup devel'.

-

-	* builds/dos/detect.mk (emx, turboc, watcom, borlandc, borlandc16),

-	builds/os2/detect (visualage, watcom, borlandc, devel),

-	builds/unix/detect.mk (devel, lcc, unix), builds/windows/detect.mk

-	(visualc, watcom, visualage, lcc, mingw32, bcc32, devel-bcc,

-	devel-gcc): Use no-op recipe.

-

-2018-05-04  suzuki toshiya  <[email protected]>

-

-	Support symbol visibility features of Sun / Oracle C compilers.

-

-	Reported by Kiyoshi Kanazawa:

-	https://lists.gnu.org/archive/html/freetype-devel/2018-05/msg00008.html

-	Thanks to the suggestions by Alexei and Alan Coopersmith.

-

-	* builds/unix/configure.raw: Check if "-xldscope=hidden" is

-	accepted, and if so, it is added to CFLAGS.  This is the option

-	making Sun / Oracle C compilers hide the symbols from global

-	scope.

-	* include/freetype/config/ftconfig.h: Use "__global" prefix

-	for FT_EXPORT() macro, if SunPro C is newer than Sun ONE

-	Studio 8 (2003).

-	* builds/unix/ftconfig.in: Ditto.

-	* builds/vms/ftconfig.h: Ditto.

-

-2018-05-02  Nikolaus Waxweiler  <[email protected]>

-

-	Unbreak CMake Windows installation

-

-	* CMakeLists.txt: Generate ftconfig.h on non-UNIX.

-

-2018-05-02  Werner Lemberg  <[email protected]>

-

-	Remove FT_CONFIG_OPTION_PIC and related code.

-

-	*/* [FT_CONFIG_OPTION_PIC]: Remove all code guarded by this

-	preprocessor symbol.

-

-	*/*: Replace `XXX_GET' macros (which could be either a function in

-	PIC mode or an array in non-PIC mode) with `xxx' arrays.

-

-	* include/freetype/internal/ftpic.h, src/autofit/afpic.c,

-	src/autofit/afpic.h, src/base/basepic.c, src/base/basepic.h,

-	src/base/ftpic.c, src/cff/cffpic.c, src/cff/cffpic.h,

-	src/pshinter/pshpic.c, src/pshinter/pshpic.h, src/psnames/pspic.c,

-	src/psnames/pspic.h, src/raster/rastpic.c, src/raster/rastpic.h,

-	src/sfnt/sfntpic.c, src/sfnt/sfntpic.h, src/smooth/ftspic.c,

-	src/smooth/ftspic.h, src/truetype/ttpic.c, src/truetype/ttpic.h:

-	Removed.

-

-

-----------------------------------------------------------------------------

-

-Copyright (C) 2018-2021 by

-David Turner, Robert Wilhelm, and Werner Lemberg.

-

-This file is part of the FreeType project, and may only be used, modified,

-and distributed under the terms of the FreeType project license,

-LICENSE.TXT.  By continuing to use, modify, or distribute this file you

-indicate that you have read the license and understand and accept it

-fully.

-

-

-Local Variables:

-version-control: never

-coding: utf-8

-End:

--- a/README.git

+++ b/README.git

@@ -72,26 +72,6 @@

 submodule and copies some files into FreeType's source tree.

-contributing

-------------

-

-If you want to contribute to FreeType it is recommended to install the

-`git-merge-changelog` program – we use a `ChangeLog` file, which often

-prevents   simple   merging   due  to   conflicts.    Most   GNU/Linux

-distributions  have a  package  for this  program;  otherwise you  can

-install it via the 'gnulib' git repository.  Detailed instructions can

-be found at the beginning of

-

-  https://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/git-merge-changelog.c

-

-To make  it actually work, add  to file `.git/config` in  the FreeType

-git repository (or to your `$HOME/.gitconfig` file) the lines

-

-  [merge "merge-changelog"]

-     name = GNU-style ChangeLog merge driver

-     driver = /usr/local/bin/git-merge-changelog %O %A %B

-

-

 ----------------------------------------------------------------------

 Copyright (C) 2005-2021 by

--- /dev/null

+++ b/docs/oldlogs/ChangeLog.210

@@ -1,0 +1,7815 @@

+2021-07-18  Werner Lemberg  <[email protected]>

+

+	* Version 2.11.0 released.

+	==========================

+

+

+	Tag sources with `VER-2-11-0'.

+

+	* docs/VERSION.TXT: Add entry for version 2.11.0.

+	* docs/CHANGES: Updated.

+

+	* README, src/base/ftver.rc, builds/windows/vc2010/index.html,

+	builds/windows/visualc/index.html,

+	builds/windows/visualce/index.html,

+	builds/wince/vc2005-ce/index.html,

+	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

+	s/2.10.4/2.11.0/, s/2104/2110/.

+

+	* include/freetype/freetype.h (FREETYPE_MINOR): Set to 11.

+	(FREETYPE_PATCH): Set to 0.

+

+	* builds/unix/configure.raw (version_info): Set to 24:0:18.

+	* CMakeLists.txt (VERSION_MINOR): Set to 11.

+	(VERSION_PATCH): Set to 0.

+

+	* builds/toplevel.mk (dist): Ignore more git-related files.

+

+2021-07-17  David Turner  <[email protected]>

+

+	* src/smooth/ftgrays.c: Fix compilation if `FT_LONG64` is undefined.

+

+	The code assumed that if `__SSE2__` is defined, then 64-bit integer

+	types are available.  This is not the case apparently for certain

+	multilib compiler targets like 'x86_32.x86' used by Gentoo.

+

+	This patch fixes the issue by disabling the special code path when

+	64-bit integer types are not available.

+

+	Fixes #1071.

+

+2021-07-16  Alex Richardson  <[email protected]>

+

+	[tests] Allow arbitrary build directories.

+

+	* tests/issue-1063/main.c (main): I am building with a build

+	directory that is not directly inside the source tree, so the path

+	`../tests/data/As.I.Lay.Dying.ttf` does not resolve to the test

+	input file.  This change passes the test data directory as an

+	environment variable to allow arbitrary build directories.

+

+	* tests/meson.build: Updated.

+

+2021-07-16  Alex Richardson  <[email protected]>

+

+	* tests/issue-1063/main.c (main): Fix uninitialized variable.

+

+	I tried running `meson test` but the test just crashed and gdb

+	reported that the face argument to `FT_Get_Char_Index` was nonsense. 

+	With this change the test prints 'Could not open file: ' as it

+	should.

+

+2021-07-16  Werner Lemberg  <[email protected]>

+

+	[smooth] Minor fixes.

+

+	* src/smooth/ftgrays.c (gray_render_conic): Move variable and

+	structure declarations to beginning of function.  Inspite of C99

+	compliance we still do this for the sake of backward compatibility.

+	This also avoids a shadowing declaration of `count`.

+	(gray_convert_glyph_inner): Fix typo.

+

+2021-07-15  Ben Wagner  <[email protected]>

+

+	* src/smooth/ftgrays.c: Guard inclusion of `emmintrin.h`.

+

+	Guard inclusion of `emmintrin.h` with `#ifdef __SSE2__`.  The gcc

+	version of this header, `xmmintrin.h`, and `mmintrin.h` check that

+	the appropriate defines are set before defining anything (are

+	internally guarded).  However, the clang versions of these includes

+	are not internally guarded.  As a result of this, externally guard

+	the inclusion of these headers.

+

+2021-07-15  David Turner  <[email protected]>

+

+	[smooth] Implement Bézier quadratic arc flattening with DDA.

+

+	Benchmarking shows that this provides a very slighty performance

+	boost when rendering fonts with lots of quadratic Bézier arcs,

+	compared to the recursive arc splitting, but only when SSE2 is

+	available, or on 64-bit CPUs.

+

+	On a 2017 Core i5-7300U CPU on Linux/x86_64:

+

+	  ftbench -p -s10 -t5 -cb DroidSansFallbackFull.ttf

+

+	  Before: 4.033 us/op  (best of 5 runs for all numbers)

+	  After:  3.876 us/op

+

+	  ftbench -p -s60 -t5 -cb DroidSansFallbackFull.ttf

+

+	  Before: 13.467 us/op

+	  After:  13.385 us/op

+

+	* src/smooth/ftgrays.c (gray_render_conic): New implementation

+	based on DDA and optionally SSE2.

+

+2021-07-15  David Turner  <[email protected]>

+

+	[smooth] Minor speedup to smooth rasterizer.

+

+	This speeds up the smooth rasterizer by avoiding conditional

+	branches in the hot path.

+

+	- Define a fixed 'null cell', which will be pointed to whenever the

+	  current cell is outside of the current target region.  This avoids

+	  a `ras.cell != NULL` check in the `FT_INTEGRATE` macro.

+

+	- Also use the null cell as a sentinel at the end of all `ycells`

+	  linked-lists, by setting its x coordinate to `INT_MAX`.  This

+	  avoids a `if (!cell)` check in `gray_set_cell` as well.

+

+	- Slightly change the worker struct fields to perform a little less

+	  operations during rendering.

+

+	Example results (on a 2013 Corei5-3337U CPU)

+

+	  out/ftbench -p -s10 -t5 -bc DroidSansFallbackFull.ttf

+

+	  Before: 5.472 us/op

+	  After:  5.275 us/op

+

+	  out/ftbench -p -s60 -t5 -bc DroidSansFallbackFull.ttf

+

+	  Before: 17.988 us/op

+	  After:  17.389 us/op

+

+	* src/smooth/ftgrays.c (grat_TWorker): Replace `num_cells` field with

+	`cell_free` and `cell_limit`.

+	(NULL_CELL_PTR, CELL_MAX_X_VALUE, CELL_IS_NULL): New macros.

+	(gray_dump_cells, gray_set_cell, gray_sweep, gray_sweep_direct,

+	gray_convert_glyph_inner, gray_convert_glyph): Updated.

+

+2021-07-15  David Turner  <[email protected]>

+

+	[tests] Rewrite download script in Python3.

+

+	This commit replaces the bash script with a Python script that does

+	the same work, plus avoiding to download anything if the files are

+	already installed with the right content.

+

+	We now use the first 8 bytes of each file's sha256 hash for the

+	digest.

+

+	* tests/scripts/download-test-fonts.sh: Removed.

+	* tests/scripts/download-test-fonts.py: New script.

+	* tests/README.md: Updated.

+

+2021-07-15  Alex Richardson  <[email protected]>

+

+	Support architectures where `long` is smaller than pointers.

+

+	I am currently trying to compile FreeType for CHERI-extended ISAs

+	(CHERI-RISC-V and Arm's Morello), but I am getting compiler warnings

+	from the `FT_UINT_TO_POINTER` macro.  When compiling with the CHERI

+	Clang compiler, not using `uinptr_t` for casts between integers an

+	pointers results in the following `-Werror` build failures:

+

+	```

+	In file included from .../src/truetype/truetype.c:22:

+	  .../src/truetype/ttgload.c:1925:22: error:

+	    cast from provenance-free integer type to pointer type will

+	    give pointer that can not be dereferenced

+	    [-Werror,-Wcheri-capability-misuse]

+	  node->data = FT_UINT_TO_POINTER( glyph_index );

+	               ^

+	  .../include/freetype/internal/compiler-macros.h:79:34: note:

+	    expanded from macro 'FT_UINT_TO_POINTER'

+	```

+

+	* include/freetype/internal/compiler-macros.h (FT_UINT_TO_POINTER):

+	The ISO C standard compliant fix for this would be to use

+	`uintptr_t` from `stdint.h`, but I am not sure if this is supported

+	by the minimum compiler version.  Therefore, use the

+	compiler-defined `__UINTPTR_TYPE__` macro (supported in GCC 4.6+ and

+	Clang since about 3.0) before checking for `_WIN64` and falling back

+	to `unsigned long`.

+

+2021-07-13  Oleg Oshmyan  <[email protected]>

+

+	[base] Fix `FT_Open_Face`'s handling of user-supplied streams.

+

+	This was already true (though undocumented) most of the time, but

+	not if `FT_NEW` inside `FT_Stream_New` failed or if the

+	`FT_OPEN_XXX` flags were bad.

+

+	Normally, `FT_Open_Face` calls `FT_Stream_New`, which returns the

+	user-supplied stream unchanged, and in case of any subsequent error

+	in `FT_Open_Face`, the stream is closed via `FT_Stream_Free`.

+

+	Up to now, however, `FT_Stream_New` allocates a new stream even if

+	it is already given one by the user.  If this allocation fails, the

+	user-supplied stream is not returned to `FT_Open_Face` and never

+	closed.  Moreover, the user cannot detect this situation: all they

+	see is that `FT_Open_Face` returns `FT_Err_Out_Of_Memory`, but that

+	can also happen after a different allocation fails within the main

+	body of `FT_Open_Face`, when the user's stream has already been

+	closed by `FT_Open_Face`.  It is plausible that the user stream's

+	`close` method frees memory allocated for the stream object itself,

+	so the user cannot defensively free it upon `FT_Open_Face` failure

+	lest it ends up doubly freed.  All in all, this ends up leaking the

+	memory/resources used by user's stream.

+

+	Furthermore, `FT_Stream_New` simply returns an error if the

+	`FT_OPEN_XXX` flags are unsupported, which can mean either an

+	invalid combination of flags or a perfectly innocent

+	`FT_OPEN_STREAM` on a FreeType build that lacks stream support.

+	With this patch, the user-supplied stream is closed even in these

+	cases, so the user can be sure that if `FT_Open_Face` failed, the

+	stream is definitely closed.

+

+	* src/base/ftobjs.c (FT_Stream_New): Don't allocate a buffer

+	unnecessarily.

+	Move error-handling code to make the control flow more obvious.

+	Close user-supplied stream if the flags are unsupported.

+	`FT_Stream_Open` always sets `pathname.pointer`, so remove the

+	redundant (re)assignment.  None of the `FT_Stream_Open...` functions

+	uses `stream->memory`, so keep just one assignment at the end,

+	shared among all possible control flow paths.

+	('Unsupported flags' that may need a stream closure can be either an

+	invalid combination of multiple `FT_OPEN_XXX` mode flags or a clean

+	`FT_OPEN_STREAM` flag on a FreeType build that lacks stream

+	support.)

+

+2021-07-13  Oleg Oshmyan  <[email protected]>

+

+	[base] Reject combinations of incompatible `FT_OPEN_XXX` flags.

+

+	The three modes are mutually exclusive, and the documentation of the

+	`FT_OPEN_XXX` constants notes this.  However, there was no check to

+	validate this in the code, and the documentation on `FT_Open_Args`

+	claimed that the corresponding bits were checked in a well-defined

+	order, implying it was valid (if useless) to specify more than one.

+	Ironically, this documented order did not agree with the actual

+	code, so it could not be relied upon; hopefully, nobody did this and

+	nobody will be hurt by the new validation.

+

+	Even if multiple mode bits were allowed, they could cause memory

+	leaks: if both `FT_OPEN_STREAM` and `stream` are set along with

+	either `FT_OPEN_MEMORY` or `FT_OPEN_PATHNAME`, then `FT_Stream_New`

+	allocated a new stream but `FT_Open_Face` marked it as an 'external'

+	stream, so the stream object was never released.

+

+	* src/base/ftobjs.c (FT_Stream_New): Reject incompatible

+	`FT_OPEN_XXX` flags.

+

+2021-07-12  Alex Richardson  <[email protected]>

+

+	* meson.build: Fix build for other UNIX systems (e.g., FreeBSD).

+

+	Without this change the build of `unix/ftsystem.c` fails because the

+	`ftconfig.h` header that defines macros such as `HAVE_UNISTD_H` and

+	`HAVE_FCNTL_H` is only being generated for Linux, macOS, and Cygwin

+	systems:

+

+	```

+	.../builds/unix/ftsystem.c:258:32: error:

+	    use of undeclared identifier 'O_RDONLY'

+	file = open( filepathname, O_RDONLY );

+	```

+

+	Instead of hardcoding a list of operating systems for this check,

+	update the logic that decides whether to build the file and set a

+	boolean flag that can be checked instead.

+

+2021-07-12  Werner Lemberg  <[email protected]>

+

+	[autofit] More clean-ups.

+

+	* src/autofit/afhints.h (AF_GlyphHintsRec): Remove the no longer

+	needed fields `xmin_delta` and `xmax_delta`.

+

+	* src/autofit/afhints.c (af_glyph_hints_reload),

+	src/autofit/afloader.c (af_loader_load_glyph): Updated.

+

+2021-07-12  Werner Lemberg  <[email protected]>

+

+	Small clean-ups for the last few commits.

+

+	* include/freetype/fttrace.h (afwarp): Removed.

+

+2021-07-12  David Turner  <[email protected]>

+

+	Remove obsolete `AF_Angle` type and related sources.

+

+	* src/autofit/afangles.c: File removed.  Functions related to

+	sorting moved to...

+	* src/autofit/afhints.c (af_sort_pos, af_sort_and_quantize_widths):

+	This file.

+	* src/autofit/afangles.h: File removed.

+	* src/autofit/aftypes.h: Updated.

+	* src/autofit/autofit.c: Updated.

+

+	* src/autofit/rules.mk (AUTOF_DRV_SRC): Updated.

+

+2021-07-12  David Turner  <[email protected]>

+

+	Remove experimental auto-hinting 'warp' mode.

+

+	This feature was always experimental, and probably never worked

+	properly.  This patch completely removes it from the source code,

+	except for a documentation block describing it for historical

+	purposes.

+

+	* devel/ftoption.h, include/freetype/config/ftoption.h: Remove

+	`AF_CONFIG_OPTION_USE_WARPER`.

+

+	* include/freetype/ftdriver.h: Document 'warping' property as

+	obsolete.

+

+	* src/autofit/afwarp.c, src/autofit/afwarp.h: Files removed.

+	* src/autofit/*: Remove any code related to warp mode.

+

+2021-07-12  David Turner  <[email protected]>

+

+	Remove experimental 'Latin2' writing system (`FT_OPTION_AUTOFIT2`).

+

+	This code has always been experimental and was never compiled anyway

+	(`FT_OPTION_AUTOFIT2` does not appear in `ftoption.h` or even any of

+	our build files).

+

+	* include/freetype/internal/fttrace.h (aflatin2): Removed.

+	* src/autofit/aflatin2.h, src/autofit/aflatin2.c: Files removed.

+	* src/autofit/afloader.c: Remove undocumented hook to activate

+	Latin2 system.

+	* src/autofit/afstyles.h: Remove `ltn2_dflt` style definition.

+	* src/autofit/afwrtsys.h: Remove `LATIN2` writing system definition.

+	* src/autofit/autofit.c: Updated.

+

+2021-07-05  Werner Lemberg  <[email protected]>

+

+	* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix argument.

+

+	Reported by Hin-Tak.

+

+2021-07-03  Werner Lemberg  <[email protected]>

+

+	* meson_options.txt: Sort alphabetically; no final full stops.

+

+2021-07-01  Ben Wagner  <[email protected]>

+

+	* src/truetype/ttgxvar.c (tt_set_mm_blend): Test `coords`.

+

+	It is undefined behavior to pass `NULL` to `memcpy`.  `coords' is

+	passed to `memcpy` but `TT_Get_MM_Blend` and `TT_Get_Var_Design`

+	explictly call `tt_set_mm_blend` with `coords` as `NULL`.  In

+	addition, `TT_Set_MM_Blend` has a similar possible issue.

+

+2021-06-30  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Support PaintScale in 'COLR' v1 parsing.

+

+	* include/freetype/ftcolor.h (FT_PaintFormat): Renumber values, add

+	`FT_COLR_PAINTFORMAT_SCALE`.

+	(FT_PaintScale): New structure to represent 'PaintScale*' tables.

+	(FT_COLR_Paint): Updated.

+

+	* src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration.

+	(read_paint): Parse 'PaintScale' and friends.

+

+2021-06-30  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Handle fonts without layer list in 'COLR' v1.

+

+	'COLR' v1 fonts do not necessarily need to have a layer list; for

+	this reason, 'fontTools' recently started generating fonts in a way

+	that drops the layer list if there are no layers in it.  This

+	results in the layer list offset becoming zero, which FreeType

+	treated as an invalid table.  Fix that and handle the case for layer

+	list offset being 0.  This slightly changes how we need to calculate

+	the starting offset for paints.

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr): Handle case of layer list

+	offset being zero without outright rejecting table.

+

+2021-06-30  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/raster/ftraster.c (Render_Single_Pass): Simplify `band_stack'.

+

+2021-06-29  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Do not skip the second pass without dropout control.

+

+	The second pass also fixes horizontal lines through the pixel centers.

+

+	* src/raster/ftraster.c (black_TWorker): Do not use `second_pass'.

+	(Render_Glyph): Skip the second pass only with the appropriate flag.

+

+2021-06-29  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Handle sub-band stack locally.

+

+	* src/raster/ftraster.c (black_TWorker): Move `band_stack' from here..

+	(Render_Single_Pass): ... to here and accept limit arguments.

+	(Render_Glyph): Updated.

+

+2021-06-25  Anurag Thakur  <[email protected]>

+

+	[CI] Introduce linux CI and refactor job names.

+

+	* .gitlab-ci.yml: Added jobs for building freetype on linux.

+

+2021-06-28  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Handle Bézier stack locally.

+

+	* src/raster/ftraster.c (black_TWorker): Move `arcs' from here...

+	(Conic_To, Cubic_To): ... to here to tighten their scope.

+	(Bezier_Up, Bezier_Down): ... Take the current `arc' argument.

+

+2021-06-28  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Improve paint limit checks

+

+	Paint tables can appear before the `base_glyphs_v1` offset if the

+	font is produced with the layer list before the base glyph list.  In

+	this case paint tables can occur after the layer list but before the

+	base glyph list.  Checks in the 'COLR' v1 code were rejecting fonts

+	with this layout.  Improve these checks by calculating a minimum

+	offset after which paint tables can occur and use that in safety

+	checks.

+

+	* src/sfnt/ttcolr.c (Colr, tt_face_load_colr): Declare

+	`paint_start_v1` and calculate that as the minimum of the end of

+	layer list and base glyph list.

+	(get_child_table_pointer, read_paint, tt_face_get_paint_layers):

+	Use that in safety checks.

+

+2021-06-28  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Clean up vertical sweep.

+

+	* src/raster/ftraster.c (black_TWorker): Replace the current line

+	offset with the pointer and drop the increment.

+	(Function_Sweep_Init): Take values as arguments instead of pointers.

+	(Vertical_Sweep_*, Horizontal_Sweep_Init, Draw_Sweep): Updated.

+

+2021-06-25  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Make `band_top' local variable.

+

+	* src/raster/ftraster.c (black_TWorker): Move `band_top' from here...

+	(Render_Single_Pass): ... to here, and refactor.

+	(Render_Glyph): Updated.

+

+2021-06-25  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Adjust sub-band bisecting limits.

+

+	We can bisect a band until it is just a single scan line.  This might

+	be slow and cause time-outs but if we need to impose limits it should

+	be elsewhere.

+

+	* src/raster/ftraster.c (Render_Single_Pass): Tweak sub-banding.

+

+2021-06-25  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/raster/ftraster.c (Render_Single_Pass): Remove dead code.

+

+2021-06-25  Werner Lemberg  <[email protected]>

+

+	[base] Add trace level to logging output.

+

+	Some practical debugging work has shown that displaying level X of

+	an `FT_TRACEX` macro in the output of `FT2_DEBUG="...  -v"` would be

+	very helpful to find out which trace level should be selected.  As

+	an example, we now get output like

+

+	```

+	[ttobjs:2]    TTF driver

+	[ttobjs:2]      SFNT driver

+	[sfobjs:2]      not a font using the SFNT container format

+	[t1objs:2]    Type 1 driver

+	[stream:7]    FT_Stream_EnterFrame: 14 bytes

+	```

+

+	* include/freetype/internal/ftdebug.h (FT_LOGGING_TAGX): New macro.

+	(FT_LOG): Use it to add the trace level to the logging tag.

+

+	* include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):

+	Adjust.

+

+	* docs/DEBUG: Updated.

+

+2021-06-24  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth, raster] Fix up and align error codes.

+

+	FT_Render_Glyph picked up FAILURE or 1 returned from the raster

+	function, which became a confusing error code. Instead, return

+	Raster_Overflow in the unlikely event that banding does not help or

+	another meaningful error.

+

+	* src/smooth/ftgrays.c (gray_convert_glyph_inner, gray_convert_glyph):

+	Use Raster_Overflow when the rendering pool is exhausted and return it

+	if banding does not help.

+	(gray_raster_render): Use Smooth_Err_Ok.

+

+	* src/raster/ftraster.c (Render_Single_Pass): Return Raster_Overflow

+	if banding does not help or another error code.

+

+2021-06-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth, raster] Remove synonymous error macros.

+

+	* src/smooth/ftgays.c [STANDALONE_]: s/ErrRaster_/Smooth_Err_/.

+	(gray_convert_glyph_inner): Updated accordingly.

+

+	* src/raster/ftraster.c [STANDALONE_]: Do not abbreviate error macros.

+	(New_Profile, End_Profile, Insert_Y_Turn, Line_Up, Bezier_Up,

+	Decompose_Curve, Draw_Sweep, Render_Single_Pass, ft_black_render):

+	Updated accordingly.

+

+2021-06-22  Dominik Röttsches  <[email protected]>

+

+	[sfnt] s/PaintTransformed/PaintTransform/, s/transformed/transform/.

+

+	* include/freetype/ftcolor.h (FT_PaintTransformed, FT_PaintFormat,

+	FT_COLR_Paint): Do it to make it harmonize with other names such as

+	'PaintTranslate'.

+

+	* src/sfnt/ttcolr.c (read_paint, tt_face_get_paint): Ditto.

+

+2021-06-22  Dominik Röttsches  <[email protected]>

+

+	Move 'COLR' API to `ftcolor.h`.

+

+	* include/freetype/freetype.h: Cut section layer managament

+	containing 'COLR' v0 and v1 API and move it to `ftcolor.h` as

+	requested by Werner on freetype-devel.

+	* include/freetype/ftcolor.h: Paste that section.

+

+2021-06-19  Werner Lemberg  <[email protected]>

+

+	[truetype] Fix integer overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312

+

+	* src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`.

+

+2021-06-19  Werner Lemberg  <[email protected]>

+

+	[autofit] Prevent hinting if there are too many segments.

+

+	This speeds up handling of broken glyphs.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35309

+

+	* src/autofit/aflatin.c (af_latin_hints_compute_segments): Implement

+	it.

+

+2021-06-18  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely.

+

+2021-06-16  David Turner  <[email protected]>

+

+	[autofit] Fix return value of `FT_Load_Glyph`.

+

+	* src/autofit/afglobal.c (af_face_globals_get_metrics): The issue is

+	that `style_metrics_init` sometimes returns -1 without clearing

+	`error`.  While looping to `Again`, the next operation is

+	successful, but -1 is still returned by the function.  The fix is to

+	set `error` to 0 appropriately.

+

+	Fixes #1063.

+

+2021-06-15  David Turner  <[email protected]>

+

+	[meson] Add first regression test to FreeType.

+

+	* tests/README.md: New file that explains how to build and run the

+	tests with the Meson build.

+

+	* tests/scripts/download-test-fonts.sh: New bash script to download

+	test font files to the `tests/data` folder.

+

+	* meson.build, meson_options.txt: Add 'tests' option to enable

+	building and running the test programs (disabled by default).

+

+	* tests/meson.build: New file.

+

+	* tests/issue-1063/main.c: Simple regression test to exhibit issue

+	1063.

+

+	* .gitignore: Ignore the content of the `tests/data` folder for

+	now.

+

+2021-06-12  Alexei Podtelezhnikov  <[email protected]>

+

+	[type42] Fix new memory leak.

+

+	We need to inverse inheritance of FT_GlyphSlot_Internal so that we

+	have a chance to free the rendered bitmap from the parent slot.

+

+	* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts

+	of the child `ttslot' and replace it with the parent structure.

+	(T42_GlyphSlot_Done): Updated accordingly.

+

+2021-06-12  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix another assertion.

+

+	* src/psaux/psintrp.c (cf2_interpT2CharString)

+	<cf2_escCALLOTHERSUBR>: Convert assertion into error, since the

+	problem can happen with invalid user input.

+

+	Test case is file

+

+	  fuzzing/corpora/legacy/oss-fuzz/5754332360212480-unknown-read

+

+	in the `freetype2-testing` repository.

+

+2021-06-12  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix assertions.

+

+	* src/psaux/pshints.c (cf2_hintmap_adjustHints): Check for overflow

+	before emitting an assertion error.

+

+	Test case is file

+

+	 fuzzing/corpora/legacy/oss-fuzz/4594115297673216-integer-overflow

+

+	in the `freetype2-testing` repository.

+

+2021-06-09  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttinterp.c (TT_RunIns): Optimize tracing.

+

+2021-06-09  Alexei Podtelezhnikov  <[email protected]>

+

+	[sdf] Fix SDF positioning.

+

+	* src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to

+	`bitmap_top' and `bitmap_left'.

+

+	* sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning.

+

+2021-06-08  Werner Lemberg  <[email protected]>

+

+	Fix 'devel' build for 'COLR' v1.

+

+	* devel/ftoption.h: Synchronize with

+	  `include/freetype/config/ftoption.h`.

+

+2021-06-08  Werner Lemberg  <[email protected]>

+

+	[sfnt] Sanitize cmap4 table better.

+

+	Fixes #1062.

+

+	* src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of

+	`length` gracefully.

+

+2021-06-08  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Pointer validity check when reading 'COLR' v1 layers

+

+	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the

+	existing sanity checks, ensure that the pointer to the layer to be

+	read is within the 'COLR' v1 table.

+

+2021-06-08  Werner Lemberg  <[email protected]>

+

+	* src/sdf/ftsdfcommon.c: Fix inclusion of header files.

+

+2021-06-08  Werner Lemberg  <[email protected]>

+

+	[sdf] Make `make multi` work.

+

+	* src/sdf/ftsdf.c: Include `ftbitmap.h`.

+

+	* src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`.

+	Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends.

+

+	* src/sdf/ftsdfcommon.c: New file.

+

+	* src/sdf/rules.mk, src/sdf/sdf.c: Updated.

+

+2021-06-08  Anuj Verma  <[email protected]>

+

+	[sdf] Use 8 bits for final SDF output instead of 16bits.

+

+	Since 8-bits is enough to represent SDF data we no longer require

+	16-bits for this purpose.  Also, we now normalize the output data

+	to use the entire 8-bit range efficiently.  For example: if we use

+	3.5 format with a spread of 1 we basically only use the starting

+	5-bits.  By normalizing we can use the entire 8-bit range.

+

+	* include/freetype/freetype.h (FT_Render_Mode): Updated description

+	for `FT_RENDER_MODE_SDF` regarding this change.

+

+	* include/freetype/ftimage.h (FT_Pixel_Mode): Removed

+	`FT_PIXEL_MODE_GRAY16` since no longer required.

+

+	* include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer

+	required.

+

+	* src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit

+	bitmap instead of 16-bit buffer.

+

+	* src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert

+	16.16 distance value to our desired format.

+

+	* src/sdf/ftsdf.c (sdf_generate_with_overlaps,

+	sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function

+	and also use 8-bit output buffer.

+

+	* src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead

+	of 16-bit buffer.

+

+2021-06-02  Ben Wagner  <[email protected]>

+	    Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix fallout from 2021-05-29 change.

+

+	* src/sfnt/ttcolr.c (find_base_glyph_record,

+	find_base_glyph_v1_record): Adjust binary search.

+

+	Needs to be updated with change to unsigned.

+

+2021-06-02  Werner Lemberg  <[email protected]>

+

+	* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing.

+

+	Problem reported by Alexei.

+

+2021-06-02  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix MSVC compiler warnings.

+

+	* src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):

+	Add cast.

+

+2021-05-29  Werner Lemberg  <[email protected]>

+

+	Fix compilation errors and (some) warnings for clang++.

+

+	* src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static.

+

+	* src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c

+	(ftc_snode_compare): Remove semicolon.

+

+	* src/cff/cffparse.c (cff_parser_run): Add `break` statement.

+

+	* src/cid/cidload.c (cid_hex_to_binary): Add cast.

+

+	* src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop.

+	(bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add

+	casts.

+	* src/sdf/ftsdf.c (sdf_generate_bounding_box,

+	sdf_generate_with_overlaps): Ditto.

+	* src/sdf/ftsdfcommon.h (square_root): Ditto.

+	* src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render,

+	ft_bsdf_render): Ditto.

+

+	* src/sfnt/ttcolr.c (find_base_glyph_record,

+	find_base_glyph_v1_record): Fix variable signedness.

+	(read_color_line): Add cast.

+	(read_paint): Add casts.

+	Fix signedness issue.

+	(tt_face_get_colorline_stops) Fix signedness issues.

+

+	* src/sfnt/ttpost.c (load_format_20): Add casts.

+

+	* src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS):

+	Remove final semicolons.

+

+2021-05-29  Werner Lemberg  <[email protected]>

+

+	[build] Allow overriding of `ANSIFLAGS` for GNU make build.

+

+	* builds/*: Implement it.

+

+2021-05-27  Alexei Podtelezhnikov  <[email protected]>

+

+	[type42] Fix auto-hinting.

+

+	The autohinter could not access the base (unscaled) outline in the

+	child TrueType glyph slot. We now share the internal parts between

+	the parent and child glyph slots. Fixes #1057.

+

+	* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts

+	of `T42_GlyphSlot' and replace it with the child TrueType structure.

+	(T42_GlyphSlot_Done): Updated accordingly.

+

+2021-05-25  Werner Lemberg  <[email protected]>

+

+	[psaux] Guard and trace AFM kern data allocation.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543

+

+	* include/freetype/internal/fttrace.h: Add 'afmparse' trace

+	component.

+

+	* src/psaux/afmparse.c (FT_COMPONENT): Define.

+	(afm_parse_track_kern, afm_parse_kern_pairs): Protect against

+	allocations bombs.

+	Add tracing.

+	(afm_parse_kern_data): Don't allow multiple kern data sections.

+

+2021-05-23  Alexei Podtelezhnikov  <[email protected]>

+

+	* meson.build (ft2_public_headers): Add missing `ftcid.h'.

+

+	Fixes #1058.

+

+2021-05-20  Alexei Podtelezhnikov  <[email protected]>

+

+	[type42] Avoid some memory zeroing.

+

+	* src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro.

+	* src/type42/t42parse.c (t42_parse_sfnts): Ditto.

+

+2021-05-19  Nikolaus Waxweiler  <[email protected]>

+

+	[CMake] Update dependency finders.

+

+	1. Fixes CMake using any found HarfBuzz version lower than the minimum

+	required. This is based on HALX99's merge request at

+	https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/31

+	2. Update FindHarfBuzz.cmake from

+	https://github.com/WebKit/WebKit/blob/1ce32454/Source/cmake/FindHarfBuzz.cmake

+	and guard post-CMake-3.1 features to keep the minimum version unchanged

+	3. Update FindBrotliDec.cmake to stop the warnings, based on what

+	https://github.com/google/woff2/blob/a0d0ed7d/cmake/FindBrotliDec.cmake

+	is doing

+

+	* CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Implement 1 and 2.

+	* builds/cmake/FindBrotliDec.cmake: Implement 3.

+

+2021-05-19  Ben Wagner  <[email protected]>

+

+	[gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`.

+

+	While a function pointer may be cast to another function pointer

+	type, it is required to cast the function pointer back to the

+	original function pointer type before calling it.  If a parameter is

+	a pointer the exact pointer type is required.  Using a pointer to a

+	different underlying type is technically undefined behavior.  The

+	wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took

+	`FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so

+	when gzip calls these callbacks through `alloc_func` or `free_func`

+	it invokes undefined behavior.  On most platforms this works out as

+	expected, but newer undefined behavior detectors and targets like

+	wasm can detect this and will produce an error.

+

+	* src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures

+	to exactly match `alloc_func` and `free_func`, respectively.

+	Internally, cast the `void*` opaque pointer to `FT_Memory`.

+

+2021-05-18  Alexei Podtelezhnikov  <[email protected]>

+

+	Prioritize the anti-aliasing renderer module.

+

+	* modules.cfg: Reorder the renderers.

+	* include/freetype/config/ftmodule.h: Ditto.

+

+2021-05-16  Alexei Podtelezhnikov  <[email protected]>

+

+	[sfnt] Additional guards on the POST table.

+

+	Fixes timeout (#1055) analyzed by Ben Wagner, reported as

+

+	  https://crbug.com/1194092

+

+	* src/sfnt/ttload.c (tt_face_load_post): Check POST format.

+	* src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode

+	charmap only if the glyph names exist.

+	* src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and

+	".null".

+

+2021-05-13  Daniel McArdle  <[email protected]>

+

+	[psaux] Use doubling allocation strategy for CF2_ArrStack.

+

+	Fixes timeout reported as

+

+	  https://crbug.com/1206181

+

+	* src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it.

+	* src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'.

+

+2021-05-12  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16.

+

+	Ten was barely enough for two slanted stems. Sixteen can actually fit

+	a bit more complicated scanlines.

+

+2021-05-11  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code.

+

+2021-05-11  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Faster bitmap sweeping.

+

+	Selecting the fill rule or checking the direct mode each time we call

+	`gray_hline' is sub-optimal.  This effectively splits the direct mode

+	into a separate code path while inlining `gray_hline' and saving 5-7%

+	of rendering time.

+

+	* src/smooth/ftgrays.c (gray_hline): Eliminated in favor of...

+	(FT_FILL_RULE, FT_GRAY_SET): ... these new macros...

+	(gray_sweep): ... inlined here.

+	(gray_sweep_direct): New function that handles the direct span buffer.

+	(gray_TWorker): Remove the span buffer.

+	(gray_raster_render, gray_convert_glyph): Updated.

+

+2021-05-10  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.

+

+	It is too bad the even-odd rule is not used much.

+

+2021-05-07  Alexei Podtelezhnikov  <[email protected]>

+

+	[type1] Avoid MM memory zeroing.

+

+	* src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map):

+	Tweak allocation macros.

+	* src/type1/t1objs.c (T1_Face_Done): Minor.

+

+2021-05-07  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro.

+

+2021-05-06  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro.

+

+2021-05-06  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro.

+

+2021-05-06  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/cid/cidload.c (cid_read_subrs): Tweak allocation macro.

+

+2021-05-06  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation.

+

+2021-05-05  Alexei Podtelezhnikov  <[email protected]>

+

+	[cff,psaux] Avoid memory zeroing (contd.).

+

+	* src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak

+	allocation macros.

+	* src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto.

+	* src/psaux/psstack.c (cf2_stack_init): Ditto.

+

+2021-05-04  Ben Wagner  <[email protected]>

+

+	* src/cid/cidload.c (cid_hex_to_binary): Improve return value.

+

+	Add argument to return the actual number of bytes that were decoded.

+	The actual number of bytes decoded can be quite variable depending

+	on the number of ignored 'whitespace' bytes or early termination

+	with `>`.

+	(cid_face_open): Updated to use this calculated value.  This avoids

+	trusting `parser->binary_length` is always be correct and reading

+	uninitialized bits if fewer are actually decoded.

+

+	First reported as

+

+	  https://crbug.com/1203240

+

+2021-05-03  Alexei Podtelezhnikov  <[email protected]>

+

+	[sfnt] Streamline POST format 2.0 handing.

+

+	To reduce memory allocations, we read an entire Pascal-string buffer

+	and convert it to a C-string buffer.  We also reject tables with

+	Postscript glyph names exceeding 63 bytes.

+

+	* src/sfnt/ttpost.c (load_format20): Implement it.

+	(load_post_names): Check the minimal POST table size.

+	(load_format25, tt_face_free_ps_names): Updated accordingly.

+

+2021-05-02  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf,pcf] Avoid memory zeroing (contd.).

+

+	* src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment,

+	_bdf_add_property, bdf_load_font): Tweak allocation macros.

+	* src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto.

+

+2021-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro.

+

+2021-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	[sfnt] Avoid some memory zeroing.

+

+	* src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face,

+	tt_name_ascii_from_{utf16,other}): Tweak allocaton macros.

+	* src/sfnt/ttload.c (tt_face_load_name): Ditto.

+

+2021-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros.

+

+2021-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro.

+

+2021-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	[truetype] Avoid some memory zeroing.

+

+	* src/truetype/ttinterp.c (Init_Context): Tweak allocation macro.

+	* src/truetype/ttpload.c (tt_face_load_cvt): Ditto.

+

+2021-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	[woff2] Avoid some memory zeroing.

+

+	* src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros.

+

+2021-04-30  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again.

+

+2021-04-27  Alexei Podtelezhnikov  <[email protected]>

+

+	[lzw] Preserve decompression stack when relocating to heap.

+

+	* src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when

+	relocating to heap.

+

+2021-04-27  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check.

+

+2021-04-27  Werner Lemberg  <[email protected]>

+

+	* src/psmodule.c (ps_unicodes_init): Ignore empty glyph names.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637

+

+2021-04-26  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change.

+

+2021-04-26  Alexei Podtelezhnikov  <[email protected]>

+

+	[cff] Avoid some memory zeroing.

+

+	* src/cff/cffparse.c (cff_parser_init): Tweak memory macro.

+	* src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers,

+	cff_charset_load, cff_vstore_load): Ditto.

+

+2021-04-26  Alexei Podtelezhnikov  <[email protected]>

+

+	[pfr] Avoid some memory zeroing.

+

+	* src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro.

+	* src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps,

+	pfr_phy_font_load): Ditto.

+

+2021-04-26  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro.

+

+2021-04-26  Alexei Podtelezhnikov  <[email protected]>

+

+	[psaux,psnames] Avoid some memory zeroing.

+

+	* src/psaux/psstack.c (cf2_stack_init): Tweak memory macro.

+	* src/psnames/psmodule.c (ps_unicodes_init): Ditto.

+

+2021-04-25  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] Avoid some memory zeroing.

+

+	* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY.

+	* src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto.

+

+2021-04-25  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf,pcf] Avoid some memory zeroing.

+

+	* src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font):

+	Tweak memory macros.

+	* src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto.

+	* src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property,

+	_bdf_parse_glyphs, _bdf_parse_start): Ditto.

+	(_bdf_add_property): Do not handle zero size.

+

+2021-04-25  Issam E. Maghni  <[email protected]>

+

+	* builds/meson/process_ftoption_h.py: Add LF at EOF.

+

+	This fixes

+

+	  .../ftoption.h:1030:10: error:

+	    no newline at end of file [-Werror,-Wnewline-eof]

+

+	for the generated `ftoption.h` file.

+

+2021-04-24  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/.

+	* builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/sfnt/sfdriver.c (get_win_string, get_apple_string,

+	sfnt_get_var_ps_name): Do not zero out the buffer.

+	* src/sfnt/sfobjs.c (sfnt_init_face): Ditto.

+	* src/sfnt/sfwoff.c (woff_open_font): Ditto.

+	* src/sfnt/sfwoff2.c (woff2_open_font): Ditto.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name):

+	Do not zero out the buffer.

+	* src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto.

+	* src/type1/t1load.c (parse_subrs, parse_charstrings,

+	parse_blend_axis_types): Ditto.

+	* src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto.

+	* src/type42/t42parse.c (t42_parser_init): Ditto.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[cid] s/FT_ALLOC/FT_QALLOC/ and clean up.

+

+	* src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer.

+	* src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load):

+	Do not zero out the buffer.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer.

+	* src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto.

+

+2021-04-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer.

+	* src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto.

+	* src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto.

+

+2021-04-22  Alexei Podtelezhnikov  <[email protected]>

+

+	[cache] Optimize SBit copying.

+

+	* src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer.

+	(ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/.

+

+2021-04-22  Alexei Podtelezhnikov  <[email protected]>

+

+	[gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer.

+	* src/otvalid/otvmod.c (otv_load_table): Ditto.

+

+2021-04-22  Alexei Podtelezhnikov  <[email protected]>

+

+	[psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not

+	zero out the buffer.

+

+2021-04-22  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.

+

+	* src/base/ftobjs.c (open_face_PS_from_sfnt_stream,

+	Mac_Read_sfnt_Resource): Do not zero out the buffer.

+	* src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.

+	* src/base/ftrfork.c (raccess_make_file_name,

+	raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto.

+

+2021-04-20  Alexei Podtelezhnikov  <[email protected]>

+

+	[cache] Restore SBit copying for unowned (BDF) bitmaps.

+

+	* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore.

+	(ftc_snode_load): Check ownership and copy unowned bitmaps.

+

+2021-04-19  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Return in 'COLR' v1 when layer pointer outside table

+

+	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return

+	when paint pointer outside table.

+	(read_paint): Add missing return when paint pointer outside table.

+

+2021-04-18  Alexei Podtelezhnikov  <[email protected]>

+

+	[cache] Switch to lazy SBit setting.

+

+	* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed.

+	(ftc_snode_load): Take the bitmap ownership instead of copying.

+

+2021-04-16  Daniel Welty  <@danielwelty>

+

+	* src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch.

+

+2021-04-16  Werner Lemberg  <[email protected]>

+

+	* builds/unix/freetype2.m4: Fix help string formatting.

+

+	The indented `dnl` macros inserted unwanted horizontal space.

+

+	Problem reported by Ozkan Sezer <[email protected]>.

+

+2021-04-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Safeguard 'COLR' v1 layer extraction

+

+	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output

+	layer pointer to iterator if it is outside the 'COLR' table.

+	(read_paint): Do not attempt to read layers that are outside the

+	table.

+

+2021-04-02  Ben Wagner  <[email protected]>

+

+	[base] Complete `ft_glyphslot_clear`.

+

+	* src/base/ftobjs.c (ft_glyphslot_clear): This function is intended

+	to reset all the values of a glyph slot.  However, it was not

+	resetting the values of the advances and `glyph_index`.  Reset the

+	advances and `glyph_index` to zero.

+

+2021-04-02  Ben Wagner  <[email protected]>

+

+	[truetype] Prevent glyph program state from persisting.

+

+	`FDEF` instructions are specified as allowed only in 'prep' or

+	'fpgm'.  FreeType has attempted to prevent their use in the glyph

+	program, but they were still allowed in glyph programs if defined in

+	a function defined in 'prep' or 'fpgm' and called from the glyph

+	program.

+

+	Similarly, `IDEF` instructions are specified not to be able to

+	modify any existing instruction.  FreeType has attempted to prevent

+	their use in the glyph program, but they can still be used like

+	`FDEF`.

+

+	This change stores the initial bytecode range type and disallows the

+	use of `FDEF` and `IDEF` while running the glyph program.

+

+	Most other state is copied from the `TT_Size` into the execution

+	context.  However, it is possible for a glyph program to use `WS` to

+	write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to

+	write to the control value table.

+

+	Allowing any change to the global state from the glyph program is

+	problematic as the outlines of any given glyph may change based on

+	the order the glyphs are loaded or even how many times they are

+	loaded.  There exist fonts that write to the storage area or the

+	control value table in the glyph program, so their use should not be

+	an error.

+

+	Possible solutions to using these in the glyph program are

+

+	  * ignore the writes;

+	  * value-level copy on write, discard modified values when finished;

+	  * array-level copy on write, discard the copy when finished;

+	  * array-level copy up-front.

+

+	Ignoring the writes may break otherwise good uses.  A full copy

+	up-front was implemented, but was quite heavy as even well behaved

+	fonts required a full copy and the memory management that goes along

+	with it.  Value-level copy on write could use less memory but

+	requires a great deal more record keeping and complexity.  This

+	change implements array-level copy on write.  If any attempt is made

+	to write to the control value table or the storage area when the

+	initial bytecode range was in a glyph program, the relevant array

+	will be copied to a designated storage area and the copy used for

+	the rest of the glyph program's execution.

+

+	* src/truetype/ttinterp.h (TT_ExecContextRec): New fields

+	`iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`,

+	`glyfStorage`, and `origStorage`.

+

+	* src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle

+	`exc->glyfCvt`.

+	(Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use

+	it.

+	(Ins_WS): Handle `exc->glyfStorage`.

+	(Ins_FDEF, Ins_IDEF): Updated.

+	(TT_RunIns): Updated.

+	(TT_Done_Context): Free 'glyf' CVT working and storage area.

+	(TT_Load_Context): Fix/add casts.

+

+	* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast.

+

+2021-03-30  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Check validity of pointer location of `read_color_line`.

+

+	* src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch

+	child table pointer early for all paint formats that compute a child

+	table pointer.

+	(read_color_line, read_paint): Updated.

+	(tt_face_get_colorline_stops): Check `colr->table`.

+

+2021-03-28  Nikhil Ramakrishnan  <[email protected]>

+

+	[docs] Update docwriter stylesheet for 1.3.1.

+

+	This change is required to support docwriter 1.3.1.

+

+	See

+

+	  https://gitlab.freedesktop.org/freetype/docwriter/-/merge_requests/101

+

+	for more information.

+

+	* docs/markdown/stylesheets/extra.css:

+	(.wy-nav-content, .md-sidebar--secondary): Remove.

+

+2021-03-16  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later.

+

+2021-03-16  Ben Wagner  <[email protected]>

+

+	[sfnt] Fix memory leak in png loading.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/chromium/issues/detail?id=1182552

+

+	Memory is allocated and the pointer assigned to `rows` inside a

+	'setjmp' scope.  This memory must be freed outside the 'setjmp'

+	scope after a 'longjmp'.  Since `rows` is a local and modified

+	inside the 'setjmp' scope it must be marked volatile or it will have

+	an indeterminate value after the 'longjmp'.

+

+	* src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`.

+

+2021-03-16  Christopher Degawa  <[email protected]>

+

+	* CMakeLists.txt: Don't limit generation of 'pkg-config' file to UNIX.

+

+	mingw-w64 uses the 'pkg-config' files but does not set UNIX.

+

+2021-03-11  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning.

+

+2021-03-13  Werner Lemberg  <[email protected]>

+

+	Handle various VC++ compiler warnings.

+

+	Fixes #1039.

+

+	* src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside):

+	Initialize `sigma`.

+

+	* src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if

+	function arguments are invalid.

+	* src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast.

+

+	* src/sfnt/sfwoff2.c (woff2_decompress)

+	[!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`.

+

+	* src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`.

+

+2021-03-11  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Reduce copying during integration phase.

+

+	We now record `cover' and `area' directly into the linked list. This

+	makes rendering faster by 10% or even more at larger sizes.

+

+	* src/smooth/ftgrays.c (FT_INTEGRATE): Write directly.

+	(gray_TWorker): Add direct cell reference and remove unused fields.

+	(gray_set_cell): Consolidate the linked list management and pointers.

+	(gray_convert_glyph, gray_convert_glyph_inner): Updated.

+

+2021-03-10  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro.

+	(gray_render_line, gray_render_scanline): Use it.

+

+2021-03-09  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals.

+

+	These produce faster or more optimizable code.

+

+2021-03-08  Tim-Philipp Müller  <[email protected]>

+

+	[meson] Fix 'mmap' handling on Windows.

+

+	* meson.build (ft2_sources): Always use `windows/ftsystem.c` on

+	Windows unless mmap has been disabled.

+

+	  https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/5#note_829289

+

+2021-03-07  Tim-Philipp Müller  <[email protected]>

+

+	[ci] Add basic support for Meson builds with MSVC on Windows.

+

+	This adds meson jobs for VS2017 (x86 and x86_64).

+

+	* .gitlab-ci.yml: New file.

+

+2021-03-07  Tim-Philipp Müller  <[email protected]>

+

+	[meson] Add subproject fallbacks for 'libpng' and 'zlib'.

+

+	* subprojects/libpng.wrap, subprojects/zlib.wrap: New files.

+

+	* meson.build: Updated.

+

+2021-03-07  Xavier Claessens  <[email protected]>

+

+	[meson] Make it work with Windows.

+

+	* meson.build: Do not process `ftconfig.h` when not using

+	`ftconfig.h.in`.

+

+	Fixes #1029.

+

+2021-02-25  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix memory leak.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28148

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Reject fonts that have

+	multiple tables with the same tag.  While not explicitly forbidden

+	in the OpenType specification, it is implicitly forbidden by

+	describing a binary search algorithm for tables that only works

+	reliably if table tags are unique.

+

+2021-02-22  Werner Lemberg  <[email protected]>

+

+	* CMakeLists.txt: Update location of `LICENSE.TXT`.

+

+	Fixes #1035.

+

+2021-02-19  Werner Lemberg  <[email protected]>

+

+	* builds/unix/ax_pthread.m4: Update from 'autoconf-archive'.

+

+	A bunch of fixes were added recently to its git repository.

+

+2021-02-17  Werner Lemberg  <[email protected]>

+

+	[unix] Updates for autoconf 2.71.

+

+	This fixes warnings reported by autoupdate.

+

+	* builds/unix/ax_pthread.m4: Replace `as_echo` with `AS_ECHO`.

+

+	* builds/unix/configure.raw: Remove obsolete `AC_HEADER_STDC`.

+	Don't escape back quotes in messages for `AC_MSG_WARN`.

+

+2021-02-16  Werner Lemberg  <[email protected]>

+

+	* builds/toplevel.mk: Fix previous commit.

+

+	<top_level>: Use `TOP_DIR` in `wildcard` function.

+	(check_out_submodule, copy_submodule): Move down to come after

+	definition of `all` rule.

+	Call `mkdir` conditionally.

+

+2021-02-16  Werner Lemberg  <[email protected]>

+

+	* builds/toplevel.mk: Use rules for handling 'dlg'.

+

+	Suggested by Alexei.

+

+	(check_out_submodule, copy_submodule): New targets.

+	<top-level>: Replace calls to `shell` with rules.

+

+2021-02-16  Werner Lemberg  <[email protected]>

+

+	* builds/toplevel.mk: Avoid side effects of `shell`.

+

+	We use a dummy variable to catch its output.  Otherwise the `make`

+	program is going to interpret the return value of `shell`; this can

+	cause obscure warning or error messages or even be harmful.

+

+2021-02-16  Werner Lemberg  <[email protected]>

+

+	Move 'dlg' submodule to `subprojects` directory.

+

+	This is for future changes with Meson, which doesn't allow a

+	different name for its `subprojects` directory.  Having both a

+	`submodules` and a `subprojects` directory is confusing.

+

+	* .gitmodules, autogen.sh (copy_submodule_files, DLG_INC_DIR,

+	DLG_SRC_DIR): Updated.

+

+	* builds/toplevel.mk (<top-level>, do-dist),

+	builds/windows/vc2010/script.bat: Updated.

+

+	* src/tools/no-copyright: Updated.

+

+2021-02-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Update paint format values to support non-variable paints.

+

+	* freetype.h (FT_PaintFormat): Update paint format identifiers after

+	a specification change.  The specification was updated to have

+	sibling formats, variable and non-variable variants for each.

+	Reflect that here.

+

+	* sfnt/ttcolr.c (read_paint): Remove parsing of variable indices as

+	the non-variable formats no longer have them.

+

+2021-02-15  Daniel E  <[email protected]>

+

+	* CMakeLists.txt: Improve 'bz2' support.

+

+	Not all distributions such as FreeBSD provide a `.pc` file for

+	'(lib)bz2' so follow autotools and add it to `Libs.private` instead.

+

+2021-02-13  Werner Lemberg  <[email protected]>

+

+	* src/tools/update-copyright-year: Fix single-year entry handling.

+

+	The fix from 2021-01-17 didn't cover the case where the year to be

+	updated is identical to the current year.

+

+2021-02-13  Werner Lemberg  <[email protected]>

+

+	Add new function `FT_Get_Transform`.

+

+	See

+

+	  https://github.com/harfbuzz/harfbuzz/issues/2428

+

+	for some reasons to introduce this function.

+

+	* include/freetype/freetype.h, src/base/ftobjs.c (FT_Get_Transform):

+	Implement it.

+

+2021-02-12  Alexei Podtelezhnikov  <[email protected]>

+

+	Decorate `qsort` callbacks with `cdecl`.

+

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

+	Add new macro.

+

+	* src/base/ftrfork.c, src/bdf/bdflib.c, src/gxvalid/gxvcommn.c,

+	src/psaux/afmparse.c, src/psnames/psmodule.c, src/type1/t1afm.c,

+	src/sfnt/sfwoff.c, src/sfnt/sfwoff2.c: Update `qsort` callbacks.

+

+	Fixes #1026 when compiling FreeType with an unusual calling

+	convention while the C library function `qsort` still expects

+	`cdecl`.

+

+2021-02-10  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Implement 'COLR' v1 sweep gradients.

+

+	* freetype.h (FT_PaintSweepGradient): Add `FT_PaintSweepGradient` to

+	represent a 'COLR' v1 sweep gradient.

+	Update format.

+	(FT_PaintFormat): Update shifted paint formats.

+	Sync with spec.

+	* sfnt/ttcolr.c (read_paint): Logic to parse sweep gradients.

+	Fix struct access in radial gradient implementation.

+

+2021-02-09  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Provide optional root transform for 'COLR' v1 glyph graph.

+

+	* include/freetype/freetype.h (FT_Get_Color_Glyph_Paint):

+	Additional function argument `root_transform` to control whether

+	root transform should be returned.

+	(FT_OpaquePaint): Additional tracking field to denote whether

+	root transform is to be returned.

+	* include/freetype/internal/sfnt.h

+	(TT_Get_Color_Glyph_Paint_Func): Propagate additional argument.

+	* src/base/ftobjs.c (FT_Get_Color_Glyph_Paint): Ditto.

+	* src/sfnt/ttcolr.c (tt_face_get_colr_glyph_paint): Return root

+	transform reflecting the size and tranform configured on

+	`FT_Face`.

+	(read_paint): Initialize and track status of insert_root_transform

+	flag.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	* meson.build: s/freetype2_dep/freetype_dep/.

+

+	Many projects (e.g., fontconfig, cairo) hardcode the `freetype_dep`

+	variable name to use FreeType as subproject because that was the

+	variable name in Centricular's Meson port of FreeType.  While they

+	should stop hardcoding that variable name, it does not cost us

+	anything to keep using that name to ease transition.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	[meson] Fix handling of HarfBuzz library.

+

+	* meson.build (harfbuzz_dep): Do not fall back to HarfBuzz by

+	default.

+

+	Otherwise it causes a dependency cycle:

+

+	  cairo => fontconfig => freetype2 => harfbuzz => cairo

+

+	Meson will still fall back to HarfBuzz subprojects if the `harfbuzz`

+	option is set to `enabled` instead of `auto` and a

+	`subprojects/harfbuzz.wrap` file is present.  In that case it is the

+	responsibility of the main project to set the proper options on each

+	subproject to break the dependency cycle.

+

+	Fixes: #1028.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	[meson] Fix dependency lookup and generate `ftconfig.h`.

+

+	- zlib: If not found on the system, meson can build it as a

+	  subproject.  We thus never use the (outdated) zlib support that

+	  comes with FreeType.  Doing so has the additional advantage that

+	  the zlib code can be shared with other projects like GLib if both

+	  are subprojects of an application.

+	- harfbuzz: Build as a subproject if not found on the system.

+	- 'QUESTION: What if the compiler doesn't support `-D` but uses `/D`

+	  instead as on Windows?'  Answer: Meson translate arguments for us.

+	- visibility: Replace self-made code with meson-specific solution.

+

+	* meson.build (ft2_defines): Rewrite logic to set and handle it.

+	(process_header_command): New variable, previously called

+	`ftoption_command`.

+	(ftoption_command, ftconfig_command): New variables.

+	(zlib_option): Removed.

+	(zlib_dep): New variable.

+	(ft2_deps): Updated.

+	(harfbuzz_dep): Updated.

+	(ftconfig_h_in, ftconfig_h): New variables.

+	(ft2_sources): Updated.

+	(ft2_lib): Updated, handle visibility.

+	(summary): Updted.

+

+	* meson_options.txt (zlib): Updated.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	* meson.build: Fix resource compilation on Windows.

+

+	This is copied from GStreamer's meson port of FreeType.

+

+	(ft2_sources): Add both debug and resource file (the latter for

+	Windows only).

+	(ft2_debug_src): Removed.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	* meson.build: s/ft2_libtool_version/ft2_pkgconfig_version/.

+

+	(freetype2_dep): Use it.

+

+	`ft2_libtool_version` would be the shared library version, not the

+	one we should use in file `freetype2.pc`.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	* meson.build: Use `meson.override_dependency`.

+

+	This is a new meson mechanism to avoid other projects to hard-code

+	the `freetype2_dep` variable name in their build definition.  It

+	also ensures that meson does not mix system and subproject versions

+	of FreeType inside of the same project.

+

+	Also remove outdated TODO because `declare_dependency` was already

+	there.

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	* meson.build (bzip2_dep): Simplify.

+

+	We remove `static:false` from `find_library('bz2')`.

+

+	I don't know whether the previous code was a workaround for an old

+	meson bug, but at least with version >=0.55.0 (which FreeType uses)

+	it picks the shared library when both are available.

+

+	File `freetype2.pc` still contains the full path to file `libbz2.so`

+	instead of `-lbz2` – that we need to do this is a meson bug even

+	present in the current version (0.57.0).

+

+2021-02-09  Xavier Claessens  <[email protected]>

+

+	* meson.build: Set project version.

+

+2021-02-04  Werner Lemberg  <[email protected]>

+

+	[base] Fix Netpbm tracing message.

+

+	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Don't emit Netpbm

+	warning if there is nothing to output.

+

+2021-02-04  Werner Lemberg  <[email protected]>

+

+	* src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.

+

+	This ensures good logging output, with all lines having a proper

+	prefix (if requested).

+

+	This is a continuation of a similar patch from 2020-12-02, which

+	missed some locations.

+

+2021-02-03  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/unix/configure.raw [mmap]: Restore default path.

+

+	Fixes #1023.

+

+2021-02-03  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix integer overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30154

+

+	* src/psaux/psblues.c (cf2_blues_capture): Use `SUB_INT32`.

+

+2021-02-02  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/unix/configure.raw [mmap support]: Explicitly handle Windows.

+

+	Fixes #1024.

+

+2021-01-31  Werner Lemberg  <[email protected]>

+

+	* builds/unix/configure.raw [mmap support]: Correctly handle Windows.

+

+	Fixes #1024.

+

+2021-01-31  Werner Lemberg  <[email protected]>

+

+	* builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.

+

+2021-01-31  Werner Lemberg  <[email protected]>

+

+	Always provide logging API.

+

+	It's easier to have stubs if FT_DEBUG_LOGGING is undefined than to

+	modify `ftexport.sym` conditionally.

+

+	Problem reported by Alexei.

+

+	* src/base/ftdebug.c: Include `ftlogging.h`.

+	(FT_Trace_Set_Level, FT_Trace_Set_Default_Level, FT_Set_Log_Handler,

+	FT_Set_Default_Log_Handler) [!FT_DEBUG_LOGGING]: Provide stubs.

+

+2021-01-31  Werner Lemberg  <[email protected]>

+

+	* builds/unix/configure.raw: Fix typo.

+

+	Bug introduced in Vincent's last commit bb33f03.

+

+	Fixes issue #1021.

+

+2021-01-27  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftstroke.c (FT_Stroker_EndSubPath): Ignore tiny gaps.

+

+	Fixes bug #1020.

+

+2021-01-27  Alexei Podtelezhnikov  <[email protected]>

+

+	[stroker] Minor clean-up.

+

+	* src/base/ftstroke.c (FT_Stroker_{ConicTo,CubicTo}): Reset the last

+	line length.

+	(FT_Stroker_EndSubPath): Call `ft_stroker_process_corner'.

+

+2021-01-27  Vincent Torri  <[email protected]>

+

+	* builds/windows/ftsystem.c: Add shared memory support on Windows.

+

+	* CMakeLists.txt (BASE_SRCS), builds/unix/configure.raw (FTSYS_SRC),

+	builds/windows/vc2010/freetype.vcxproj,

+	builds/windows/visualc/freetype.vcproj, meson.build (ft2_sources):

+	Add it (conditionally).

+

+2021-01-23  Werner Lemberg  <[email protected]>

+

+	Require HarfBuzz 2.0.0.

+

+	This is needed to make commit f1f9705f9 work.

+

+	* CMakeLists.txt (HARFBUZZ_MIN_VERSION), builds/unix/configure.raw

+	(harfbuzz_pkg), meson.build (harfbuzz_dep): Updated.

+

+2021-01-22  Alexei Podtelezhnikov  <[email protected]>

+

+	* autogen.sh: Absorb `version.sed'.

+	* version.sed: Removed.

+

+2021-01-19  Alexei Podtelezhnikov  <[email protected]>

+

+	* srd/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix return value.

+

+2021-01-15  Nikolaus Waxweiler  <[email protected]>

+

+	[afshaper] Fix hb_ot_tags_from_script deprecation warning.

+

+	* autofit/afshaper.c (af_shaper_get_coverage): Copy the source code

+	of the function as suggested in

+	https://github.com/harfbuzz/harfbuzz/issues/2737 and adjust to handle

+	at most three tags.

+

+2021-01-17  Werner Lemberg  <[email protected]>

+

+	* src/tools/update-copyright-year: Fix single-year entry handling.

+

+2021-01-16  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/unix/unixddef.mk: Remove the second DEVEL_DIR definition.

+

+2021-01-14  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Additional checks for 'colr' table presence.

+

+	* sfnt/ttcolr.c (tt_face_get_colr_glyph_paint,

+	tt_face_get_colorline_stops, tt_face_get_paint): Additional checks

+	for whether colr table is present.  Prevents crashes when these

+	methods are called on non-COLR fonts.

+

+2021-01-13  Dominik Röttsches  <[email protected]>

+

+	Add config option to test for 'COLR' v1 support in headers.

+

+	* include/freetype/config/ftoption.h (TT_SUPPORT_COLRV1): New macro

+	so that clients can test whether the FreeType checkout that they are

+	building against supports the 'COLR' v1 API.  This is intended to be

+	a temporary solution until 'COLR' v1 support is released in a

+	FreeType version and such a check can be made by using the version

+	number instead.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	[base] Fill 'COLR' v1 API templates to make them work (#59703).

+

+	* src/base/ftobjs.c (FT_Get_Color_Glyph_Paint, FT_Get_Paint_Layers,

+	FT_Get_Paint, FT_Get_Colorline_Stops): Add basic sanity checks,

+	check for existence of `FT_Face`, check arguments and delegate calls

+	for the respective 'COLR' v1 API to the SFNT driver.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Register 'COLR' v1 API in driver (#59703).

+

+	* include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_Paint_Func,

+	TT_Get_Paint_Layers_Func, TT_Get_Colorline_Stops_Func,

+	TT_Get_Paint_Func): New function pointer types.

+	(SFNT_Interface): Add them.

+	(FT_DEFINE_SFNT_INTERFACE): Updated.

+

+	* src/sfnt/sfdriver.c (PUT_COLOR_LAYERS_V1): New macro.

+	(sfnt_interface): Add new function pointers.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Add 'COLR' v1 API to retrieve color layers (#59703).

+

+	* src/sfnt/ttcolr.c (tt_face_get_paint_layers): New function to get

+	the layers of a `PaintColrLayers` table in the font, using an

+	`FT_LayerIterator` from an `FT_PaintColrLayers` object retrieved via

+	`tt_face_get_paint`.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Add 'COLR' v1 API to iterate color stops (#59703).

+

+	* src/sfnt/ttcolr.c (tt_face_get_colorline_stops): New function to

+	return the current `FT_ColorStop` object from `FT_ColorStopIterator`.

+	Also increment the iterator.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Add API to get actual paint from `FT_OpaquePaint` (#59703).

+

+	* src/sfnt/ttcolr.c (tt_face_get_paint): New function to resolve an

+	`FT_OpaquePaint` paint reference into an `FT_COLR_Paint` object of a

+	certain format, which contains the detailed information stored in a

+	paint of the respective format.

+	(read_paint): New function to provide the format specific parsing

+	and to populate the data members of each specific `FT_COLR_Paint`

+	subtype.

+	(read_color_line): New function to parse retrieved color line

+	information into an `FT_ColorLine` object, which has information

+	about the color line extend mode as well as an

+	`FT_ColorStopIterator` object.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	[sfnt] Add API to retrieve 'COLR' v1 root paint (#59703).

+

+	* src/sfnt/ttcolr.c (BaseGlyphV1Record): New structure.

+	(tt_face_load_colr): Handle version 1 table header.

+	(find_base_glyph_v1_record): New auxiliary function.

+	(tt_face_get_colr_glyph_paint): New function to find the root

+	`FT_OpaquePaint` object for a given glyph ID.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	Add new methods required for 'COLR' v1 to public API (#59703).

+

+	* include/freetype/freetype.h (FT_Get_Color_Glyph_Paint): New method

+	for retrieving the root paint object for a color glyph by specifying

+	a glyph ID.

+	(FT_Get_Paint_Layers): New method for retrieving the layers of a

+	`PaintColorGlyph`.

+	(FT_Get_ColorLine_Stops): New method for retrieving the stops of a

+	color.

+	(FT_Get_Paint): New method for resolving an `FT_OpaquePaint` into an

+	`FT_COLR_Paint` object.

+

+2020-12-16  Dominik Röttsches  <[email protected]>

+

+	Add types required for 'COLR' v1 to public API (#59703).

+

+	* include/freetype/freetype.h (FT_PaintFormat, FT_ColorStopIterator,

+	FT_ColorIndex, FT_ColorStop, FT_PaintExtend, FT_ColorLine,

+	FT_Affine23, FT_CompositeMode, FT_OpaquePaint, FT_PaintColrLayers,

+	FT_PaintSolid, FT_PaintLinearGradient, FT_PaintRadialGradient,

+	FT_PaintGlyph, FT_PaintColrGlyph, FT_PaintTransformed,

+	FT_PaintTranslate, FT_PaintRotate, FT_PaintSkew, FT_PaintComposite,

+	FT_COLR_Paint): Adding structs and enum to represent paint format,

+	color stop information, gradient extend information, structs to

+	reference paint offsets, and to define transforms and compositions.

+	Adding a union type to represent the union of the structs,

+	distinguished by `FT_PaintFormat`.

+

+2021-01-10  Werner Lemberg  <[email protected]>

+

+	* builds/*: s/BUILD_DIR/PLATFORM_DIR/.

+

+	The old variable name caused confusion.

+

+2021-01-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds] Revert `FTMODULE_H' changes.

+

+	* builds/toplevel.mk, builds/freetype.mk: Revert changes.

+

+2021-01-07  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds/windows] Fix up DLG build with VC++.

+

+	* builds/windows/vc2010/script.bat: Copy headers to include/.

+	* builds/windows/vc2010/freetype.vcxproj: Remove DLG paths.

+

+2021-01-07  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds] Relocate `FTMODULE_H'.

+

+	* builds/toplevel.mk: Place `FTMODULE_H' in include/.

+	* builds/freetype.mk: Simplify included path.

+

+2021-01-07  Werner Lemberg  <[email protected]>

+

+	Fix ABI incompatibility.

+

+	* include/freetype/ftimage.h (FT_Pixel_Mode): Don't insert

+	`FT_PIXEL_MODE_GRAY16' but append it.

+

+	* src/base/ftobjs.c (pixel_modes): Updated.

+

+2021-01-07  Alexei Podtelezhnikov  <[email protected]>

+

+	[dlg] Move the headers to include/dlg to simplify their use.

+

+	* autogen.sh, builds/toplevel.mk: Copy headers to include/dlg.

+	* builds/freetype.mk, builds/windows/vc2010/freetype.vcxproj:

+	Simplify included path.

+	* include/freetype/internal/ftdebug.h: Simplify #include.

+	* src/dlg/rules.mk, .gitignore: Updated.

+

+2021-01-06  Werner Lemberg  <[email protected]>

+

+	* meson.build: Add summary.

+

+	Based on a patch from Vincent Torri <[email protected]>.

+

+2021-01-06  Torsten Hilbrich  <[email protected]>

+

+	* meson.build: Fix 'png' build option (#59458).

+

+	Without this patch, 'png' is always required.

+

+2021-01-04  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds/windows] Add SDF to VC2010 project.

+

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

+	AfterBuild conveniences.

+

+2020-12-26  Werner Lemberg  <[email protected]>

+

+	[sdf] Use 'counter-clockwise', not 'anti-clockwise'.

+

+	We prefer US nomenclature.

+

+	* src/sdf/ftsdf.c (SDF_Contour_Orientation):

+	s/SDF_ORIENTATION-ACW/SDF_ORIENTATION_CCW/.

+	Update all users.

+

+2020-12-26  Werner Lemberg  <[email protected]>

+

+	* src/base/ftobjs.c (pixel_modes): Updated.

+

+2020-12-26  Anuj Verma  <[email protected]>

+

+	[sdf] Remove custom memory tracker.

+

+	The internal FreeType memory tracker is sufficient.

+

+	* src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER, SDF_MemoryUser,

+	sdf_alloc, sdf_free, SDF_ALLOC, SDF_FREE,

+	SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,

+	SDF_MEMORY_TRACKER_DONE): Removed.

+

+	s/SDF_ALLOC/FT_ALLOC/.

+	s/SDF_FREE/FT_FREE/.

+

+	Other updates.

+

+2020-12-24  Werner Lemberg  <[email protected]>

+

+	[sdf] Fix `make multi`.

+

+	* src/sdf/ftsdf.c: Include `ftoutln.h`.

+

+2020-12-24  Werner Lemberg  <[email protected]>

+

+	[sdf] Fix tracing.

+

+	* include/freetype/internal.fttrace.h: Add 'bsdf' component.

+

+	* src/sdf/ftbsdf.c, src/sdf/ftsdf.c (FT_COMPONENT): Define.

+

+2020-08-21  Anuj Verma  <[email protected]>

+

+	[sdf] Add debugging function.

+

+	* src/sdf/ftsdf.c (sdf_shape_dump): New function.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add 'bsdf' renderer to 'sdf' module.

+

+	* src/sdf/ftsdfrend.c (ft_bsdf_render): New function.

+

+	(ft_bitmap_sdf_renderer_class): New structure.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add interface functions for the 'bsdf' rasterizer.

+

+	* src/sdf/ftsdf.c (bsdf_raster_new, bsdf_raster_reset,

+	bsdf_raster_set_mode, bsdf_raster_render, bsdf_raster_done): New

+	functions.

+

+	(ft_bitmap_sdf_raster): New variable.

+

+	* src/sdf/ftsdf.h: Updated.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add function to copy SDF data into output bitmap.

+

+	* src/sdf/ftbsdf.c (finalize_sdf): New function.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add '8-point sequential Euclidean distance mapping' algorithm.

+

+	* src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass,

+	edt8): New functions.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add function to copy source bitmap to distance map.

+

+	* src/sdf/ftbsdf.c (bsdf_init_distance_map): New function.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add functions to compute pixel edge distances.

+

+	* src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge):

+	New functions.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add function to find edge pixels in a grid of alpha values.

+

+	* src/sdf/ftbsdf.c (bsdf_is_edge): New function.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add essential structures for the 'bsdf' rasterizer.

+

+	* src/sdf/ftbsdf.c (ONE): New macro.

+	(BSDF_TRaster, ED, BSDF_Worker): New structures.

+	(zero_ed): New constant.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Add 'sdf' module to non-gnumake build systems.

+

+	* include/freetype/config/ftmodule.h: Add both the 'sdf' and 'bsdf'

+	renderers to the list of modules.

+

+	* CMakeLists.txt (BASE_SRCS): Add 'sdf' single-object module.

+

+2020-08-20  Anuj Verma  <[email protected]>

+

+	[sdf] Added basic overlapping contour support.

+

+	* src/sdf/ftsdf.c (sdf_generate_with_overlaps): New function.

+	(sdf_raster_render): Enable it.

+

+2020-08-19  Anuj Verma  <[email protected]>

+

+	[sdf] Add build infrastructure.

+

+	* src/sdf/module.mk, src/sdf/rules.mk: New files.

+

+	* src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration.

+

+	* include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition

+	for the 'sdf' module.

+

+	* include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace

+	definition for the `sdf' module.

+

+	* modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of

+	rasterizers.

+

+2020-08-19  Anuj Verma  <[email protected]>

+

+	[sdf] Add interface functions for the 'sdf' rasterizer.

+

+	* src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset,

+	sdf_raster_set_mode, sdf_raster_render, sdf_raster_done): New

+	functions.

+	(ft_sdf_raster): New structure.

+

+2020-08-19  Anuj Verma  <[email protected]>

+

+	[sdf] Add subdivision and bounding box optimization.

+

+	* src/sdf/ftsdf.c (sdf_generate_bounding_box): New function, which

+	is an optimized version of `sdf_generate`.

+	(sdf_generate_subdivision): New function.

+

+2020-08-19  Anuj Verma  <[email protected]>

+

+	[sdf] Add function to generate SDF.

+

+	* src/sdf/ftsdf.c (sdf_generate): New function, currently disabled.

+	This is a proof-of-concept implementation: It doesn't use any

+	optimization, it simply checks all grid points against all contours.

+

+2020-08-19  Anuj Verma  <[email protected]>

+

+	[sdf] Add functions to get shortest distance from any edge/contour.

+

+	* src/sdf/ftsdf.c (sdf_edge_get_min_distance): New function.

+	(sdf_contour_get_min_distance): New function, currently disabled.

+

+2020-08-18  Anuj Verma  <[email protected]>

+

+	[sdf] Add shortest distance finding functions.

+

+	* src/sdf/ftsdf.c (get_min_distance_line, get_min_distance_conic,

+	get_min_distance_cubic): New functions.  Note that

+	`get_min_distance_conic` comes with two implementations (using an

+	analytical and an iterative method, to be controlled with the

+	`USE_NEWTON_FOR_CONIC` macro).

+

+2020-08-18  Anuj Verma  <[email protected]>

+

+	[sdf] Add function to resolve corner distances.

+

+	* src/sdf/ftsdf.c (resolve_corner): New function.

+

+2020-08-18  Anuj Verma  <[email protected]>

+

+	[sdf] Add essential math functions.

+

+	* src/sdf/ftsdf.c (cube_root, arc_cos) [!USE_NEWTON_FOR_CONIC]: New

+	auxiliary functions.

+

+	* src/sdf/ftsdf.c (solve_quadratic_equation, solve_cubic_equation)

+	[!USE_NEWTON_FOR_CONIC]: New functions.

+

+2020-08-18  Anuj Verma  <[email protected]>

+

+	[sdf] Add utility functions for contours.

+

+	* src/sdf/ftsdf.c (get_control_box, get_contour_orientation): New

+	functions.

+	(split_conic, split_cubic, split_sdf_conic, split_sdf_cubic,

+	split_sdf_shape): New functions.

+

+2020-08-17  Anuj Verma  <[email protected]>

+

+	[sdf] Add functions to decompose `FT_Outline`.

+

+	* src/sdf/ftsdf.c (sdf_move_to, sdf_line_to, sdf_conic_to,

+	sdf_cubic_to): New auxiliary decomposition functions.

+	(sdf_compose_funcs): New structure.

+	(sdf_outline_decompose): New function.

+

+2020-08-17  Anuj Verma  <[email protected]>

+

+	[sdf] Structs, enums, macros, and functions for 'sdf' rasterizer.

+

+	* src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER)

+	[FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New macros.

+	(SDF_MemoryUser) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New

+	struct for memory usage tracing.

+	(sdf_alloc, sdf_free) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New

+	functions for memory usage tracing.

+

+	(SDF_ALLOC, SDF_FREE): New macros for memory management.

+	(SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP,

+	SDF_MEMORY_TRACKER_DONE): New macros to set up memory usage tracing.

+

+	(USE_NEWTON_FOR_CONIC, MAX_NEWTON_DIVISIONS, MAX_NEWTON_STEPS,

+	CORNER_CHECK_EPSILON, CG_DIMEN): New configuration macros for

+	controlling the process of finding the shortest distance.

+

+	(MUL_26D6, VEC_26D6_DOT): New auxiliary macros.

+

+	(SDF_TRaster, SDF_Edge, SDF_Contour, SDF_Shape, SDF_Signed_Distance,

+	SDF_Params): New structs for setting up SDF data.

+	(SDF_Edge_Type, SDF_Contour_Orientation): New enums for SDF data.

+

+	(zero_vector, null_edge, null_contour, null_shape, max_sdf): Useful

+	constants.

+

+	(sdf_edge_new, sdf_edge_done, sdf_contour_new, sdf_contour_done,

+	sdf_shape_new, sdf_shape_done): New constructors and destructors.

+

+2020-08-17  Anuj Verma  <[email protected]>

+

+	[sdf] Add raster parameters structure.

+

+	* src/sdf/ftsdf.h (SDF_Raster_Params): New structure.

+

+	* src/sdf/sdf.c: Include source files in order to make a single

+	object of the module.

+

+2020-08-17  Anuj Verma  <[email protected]>

+

+	[sdf] Add 'sdf' renderer.

+

+	* src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface

+	functions.

+	Also add functions to set and get properties.

+

+2020-08-17  Anuj Verma  <[email protected]>

+

+	[sdf] Add common elements for 'sdf' and 'bsdf' renderers.

+

+	* src/sdf/ftsdfrend.h (SDF_Rendere_Module, ft_sdf_renderer_class,

+	ft_bitmap_sdf_renderer_class): New structures.

+

+	* src/sdf/ftsdfcommon.h (DEFAULT_SPREAD, MIN_SPREAD_MAX_SPREAD,

+	USE_SQUARED_DISTANCES): New macros.

+	(FT_INT_26D6, FT_INT_16D16, FT_26D6_16D16): New macros.

+	(FT_CALL, VECTOR_LENGTH_16D16): New macros.

+	(FT_26D6_Vec, FT_16D16_Vec, FT_16D16, FT_26D6, FT_6D10, FT_CBox):

+	New typedefs.

+	(square_root): New macro.

+

+	* src/sdf/ftsdferrs.h: Add module error setup.

+

+2020-08-16  Anuj Verma  <[email protected]>

+

+	[sdf] Add files for new 'sdf' module.

+

+	Here is a breakdown of what the files will contain.

+

+	* src/sdf/ftsdfrend.c, src/sdf/ftsdfrend.h: The 'sdf' and 'bsdf'

+	renderers.

+

+	* src/sdf/ftsdf.c, src/sdf/ftsdf.h: The rasterizer for the 'sdf'

+	renderer.

+	* src/sdf/ftbsdf.c, src/sdf/ftbsdf.h: The rasterizer for the 'bsdf'

+	renderer.

+

+	* src/sdf/ftsdfcommon.h: Commmon properties and functions for both

+	rasterizers.

+	* src/sdf/ftsdferrs.h: Common error defines.

+

+	* src/sdf/sdf.c: For building a single object of the entire module.

+

+2020-08-16  Anuj Verma  <[email protected]>

+

+	[base] Allow renderers of different formats.

+

+	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the

+	glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`.  The forthcoming

+	'bsdf' renderer will require bitmaps for processing.

+

+	* src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove

+	renderer's glyph format check before adding and removing them.  The

+	'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.

+

+2020-08-16  Anuj Verma  <[email protected]>

+

+	Add data types required for the forthcoming 'sdf' module.

+

+	* include/freetype/freetype.h (FT_Render_Mode): Add new render mode

+	`FT_RENDER_MODE_SDF`, which will be used to generate SDF.

+

+	* include/freetype/ftimage.h (FT_Pixel_Mode): Add new pixel mode

+	`FT_PIXEL_MODE_GRAY16`, which will be the output of the 'sdf'

+	module.

+	(FT_RASTER_FLAG_SDF): New raster flag to be used internally by the

+	'sdf' module.

+

+	* include/freetype/fttypes.h (FT_F6Dot10): New data type.

+

+2020-08-16  Anuj Verma  <[email protected]>

+

+	[base] Allow renderers of different formats.

+

+	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the

+	glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`.  The forthcoming

+	'bsdf' renderer will require bitmaps for processing.

+

+	* src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove

+	renderer's glyph format check before adding and removing them.  The

+	'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.

+

+2020-12-23  Werner Lemberg  <[email protected]>

+

+	* builds/windows/detect.mk (COPY): Make it work with `shell`.

+

+	Without this patch, we get the error

+

+	  builds/toplevel.mk:127: *** missing separator.  Stop.

+

+	Reported by Anuj, with a solution from Alexei.

+

+2020-12-23  Ignacio Casal Quinteiro  <[email protected]>

+

+	* meson.build (ft2_defines): Fix builds on Windows.

+

+2020-12-18  Tatsuyuki Ishi  <[email protected]>

+

+	[autofit] Fix double division in stem darkening.

+

+	The old code used to divide the darkening amount by em_ratio twice,

+	leading to unnecessarily bold stems on certain fonts with higher

+	units per em (e.g. Inter). This patch fixes it.

+

+	The return value of af_loader_compute_darkening was also changed to

+	use 16.16 fixed point to get rid of a redundant truncation operation.

+	This should slightly improve the precision, although it's still

+	bottlenecked by the emboldening function, which uses 26.6 fixed point.

+

+	* src/autofit/afloader.[ch]

+	(af_loader_compute_darkening): Return FT_Fixed.

+	(af_loader_embolden_glyph_in_slot): Revise calculations.

+

+2020-12-17  Alexei Podtelezhnikov  <[email protected]>

+

+	* include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): New public macro.

+

+	The driver name is needed for `FT_Property_Set' and `FT_Property_Get'.

+

+2020-12-16  Chris Liddell  <[email protected]>

+

+	[truetype] Fix incremental metrics (#59503).

+

+	* src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph):

+	Previously, the code would populate the phantom points before

+	calling the `get_glyph_metrics` callback.  For formats like PCL XL

+	format 1, class 2 downloaded fonts (where metrics are removed from

+	the TTF header), this causes problems when the hinting program uses

+	the phantom points (misplaced and distorted glyphs) due to the

+	metrics being unset (all zeros).

+	(tt_get_metrics_incr_overrides): Renamed to...

+	(tt_get_metrics_incremental): ... this.  Updated caller

+

+	* include/freetype/ftincrem.h: Update the documentation to make it

+	clearer that `get_glyph_metrics` is to retrieve metrics from a

+	non-standard source, but *not* for the purpose of imposing custom

+	metrics.

+

+2020-12-14  Werner Lemberg  <[email protected]>

+

+	[type42] Pacify static analysis tools (#59682).

+

+	* src/type42/t42objs.c (T42_Size_Init, T42_GlyphSlot_Init): Avoid

+	warnings about uninitialized variables.

+

+2020-12-07  Werner Lemberg  <[email protected]>

+

+	* builds/unix/configure.raw: Don't set `FT_DEBUG_LOGGING`.

+

+	All debug options are handled exclusively in `ftoption.h`.

+

+2020-12-07  Werner Lemberg  <[email protected]>

+

+	* src/*: More fixes for using a '\n' in `FT_TRACE` and `FT_ERROR`.

+

+2020-12-07  Werner Lemberg  <[email protected]>

+

+	*/*: s/FT_LOGGING/FT_DEBUG_LOGGING/.

+

+2020-12-05  Werner Lemberg  <[email protected]>

+

+	* builds/toplevel.mk (do-dist): Remove `submodules` directory.

+

+2020-12-02  Werner Lemberg  <[email protected]>

+

+	* src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.

+

+	This ensures good logging output, with all lines having a proper

+	prefix (if requested).

+

+2020-12-02  Werner Lemberg  <[email protected]>

+

+	[base] Don't close 'stderr' after logging.

+

+	* src/base/ftdebug.c, builds/windows/ftdebug.c (ft_logging_deinit):

+	Fix it.

+

+2020-12-02  Werner Lemberg  <[email protected]>

+

+	* submodules/dlg: Updated to commit 9f0c8b22.

+

+2020-12-02  Werner Lemberg  <[email protected]>

+

+	* src/bdf/bdflib.c: Fix `-Wformat` warning.

+

+2020-12-02  Werner Lemberg  <[email protected]>

+

+	Improve setup for 'dlg' library.

+

+	* autogen.sh (copy_submodule_file), builds/toplevel.mk: Redirect

+	stderr to `/dev/null`.

+

+	* builds/toplevel.mk: Move code block to handle 'dlg' stuff into

+	`check_platform` conditional.

+	Also fix wildcard expressions for guarding `git submodule` commands.

+	Also make file copying work with non-Unix platforms (untested).

+

+2020-12-01  Werner Lemberg  <[email protected]>

+

+	[build] Use gcc (and clang) in C99 mode.

+

+	Other compilers are unchanged.

+

+	* builds/compiler/gcc-dev.mk, builds/compiler/gcc.mk (ANSIFLAGS):

+	s/-ansi/-std=c99/.

+

+	* builds/freetype.mk (FT_CFLAGS): Remove `-std=c99`.

+

+	* builds/unix/configure.raw: Handle C99.

+	Remove no longer needed test for gcc 4.6 and earlier.

+

+2020-12-01  Werner Lemberg  <[email protected]>

+

+	[dlg] Fix compiler warnings.

+

+	* src/dlg/dlgwrap.c: Duplicate some feature test macros from

+	`dlg.c`, which must come first before loading standard headers.  For

+	example, `freetype.h` loads `stdio.h` if compiled in debug mode.

+

+2020-12-01  Werner Lemberg  <[email protected]>

+

+	* src/type42/t42parse.c: Fix `-Wformat` warnings.

+

+2020-12-01  Priyesh Kumar  <[email protected]>

+

+	[builds/unix] Check for 'pthread' library.

+

+	* builds/unix/ax_pthread.m4: New file, taken from 'autoconf-archive'

+	git repository.

+

+	* builds/unix/configure.raw: Check for 'pthread'; also check whether

+	it works.

+

+2020-12-01  Werner Lemberg  <[email protected]>

+

+	[base] Implement vertical alignment of log printing.

+

+	Based on a patch by Priyesh.

+

+	* include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):

+	New macro.

+

+	* src/base/ftdebug.c, builds/windows/ftdebug.c (ft_log_handler):

+	Print logs after a fixed width to handle different lengths of

+	`FT_COMPONENT` entries.

+	Use `ft_strrchr` to check for final newline character.

+

+2020-11-30  Priyesh Kumar  <[email protected]>

+

+	Update logging related documentation.

+

+	* docs/DEBUG: Updates related to `FT_LOGGING`.

+

+	* README.git: Updates related to logging.

+

+2020-11-30  Priyesh Kumar  <[email protected]>

+

+	* src/*: Fix `-Wformat` warnings.

+

+2020-11-30  Priyesh Kumar  <[email protected]>

+

+	[builds/windows] Changes to build 'dlg' with FreeType on Windows.

+

+	We only support Visual C++ 2010 and newer.

+

+	* builds/windows/vc2010/script.bat: New windows batch file to copy

+	necessary 'dlg' files from `submodules/dlg` to `src/dlg`.  This file

+	is used as a pre-built event in Visual C++.

+

+	* builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.

+

+	* builds/windows/vc2010/freetype.vcxproj.filters: Add

+	`src/dlgwrap.c`.

+

+	* builds/windows/vc2010/freetype.vcxproj

+	(AdditionalIncludeDirectories): Add include files of dlg for 'Debug'

+	and 'Debug Static' configurations on both 'x64' and 'win32'

+	platforms.

+	(PreprocessorDefinitions): Add `FT_LOGGING` for 'Debug' and 'Debug

+	Static' configurations on both 'x64' and 'win32' platforms.

+	Add `DLG_STATIC' for 'Debug' configuration on 'x64' and 'win32'

+	platforms.

+	(DisableLanguageExtensions): We need to disable the `/Za` option

+	when building 'dlg' with FreeType as 'dlg' strictly follows the C99

+	standard.  Visual C++ produces behaves unexpectedly when

+	compiling a C99 file with `/Za` option enabled.

+

+2020-11-30  Priyesh Kumar  <[email protected]>

+

+	[base] Add public API to change log handling function.

+

+	* include/freetype/ftlogging.h (FT_Custom_Log_Handler): New function

+	typedef to store the custom callback logging function.

+	(FT_Set_Log_Handler, FT_Set_Default_Log_Handler): New functions to

+	set and reset custom log handler.

+

+	* include/freetype/internal/ftdebug.h (custom_output_handler): New

+	variable to support a custom callback logging function.

+	(FT_Logging_Callback): A new function typedef to print log using

+	custom callback logging function, which is set using

+	`FT_Set_Log_Handler`.

+	(FT_Log): Use it.

+

+	* src/base/ftdebug.c (FT_Set_Log_Handler,

+	FT_Set_Default_Log_Handler, FT_Logging_Callback): Add function

+	definitions.

+

+2020-11-28  Priyesh Kumar  <[email protected]>

+

+	[base] Add public API to change the levels of tracing components.

+

+	* include/freetype/ftlogging.h: New header file.

+

+	* include/freetype/internal/ftdebug.h [FT_LOGGING]: Include

+	`ftlogging.h`.

+

+	* src/base/ftdebug.c (ft_custom_trace_level): New variable.

+	(ft_debug_init): Update to support change of levels of tracing

+	components of FreeType at run-time.

+	(FT_Trace_Set_Level): New function to change the levels of tracing

+	components at run-time.

+	(FT_Trace_Set_Default_Level): New function to reset the levels of

+	tracing components back to default.

+

+2020-11-28  Priyesh Kumar  <[email protected]>

+

+	[base] Updates to print timestamp and name of `FT_COMPONENT` in logs.

+

+	* include/freetype/internal/ftdebug.h (FT_LOGGING_TAG,

+	FT_LOGGING_TAG_): New macros to resolve the value of `FT_COMPONENT'

+	into a string.

+	(ft_add_tag, ft_remove_tag): New functions to add and remove dlg tags.

+

+	* src/base/ftdebug.c: Add new variables to control the logging of

+	timestamp and name of `FT_COMPONENT` along with actual logs.

+	(ft_add_tag, ft_remove_tag): Add function definitions.

+	(ft_log_handler): Updates to print timestamp and name of

+	`FT_COMPONENT`.

+	(ft_debug_init) [FT_LOGGING]: Users can now control the logging of

+	timestamp and name of `FT_COMPONENT` by adding tags in the

+	`FT2_DEBUG` environment variable.

+

+2020-11-27  Priyesh Kumar  <[email protected]>

+

+	[base] Add functions and variables to print logs to a file.

+

+	* include/freetype/internal/ftdebug.h: Added dlg's header files.

+	(FT_LOG): New macro to redirect trace logs to dlg's API's whenever

+	`FT_LOGGING' is defined.

+	(ft_logging_init, ft_logging_deinit): New functions to handle

+	initialization and uninitialization of logging related variables.

+	(ft_log_handler): New function to handle logs of FreeType.

+

+	* src/base/ftdebug.c: Add necessary logging related variables.

+	(ft_logging_init, ft_logging_deinit, ft_log_handler): Add function

+	definitions.

+

+	* src/base/ftinit.c (FT_Init_FreeType) [FT_LOGGING]: Call

+	`ft_logging_init`.

+	(FT_Done_FreeType) [FT_LOGGING]: Call `ft_logging_deinit`.

+

+	* src/base/ftobjs.c (FT_New_Library): Call `ft_debug_init` only if

+	`FT_LOGGING` is not defined.

+

+2020-11-27  Priyesh Kumar  <[email protected]>

+

+	[builds] Necessary changes to make 'dlg' compile.

+

+	* autogen.sh (copy_submodule_files): New script to copy all the

+	necessary source and include files from `submodules/dlg` to

+	`src/dlg`.

+

+	* src/dlg/dlgwrap.c: New wrapper file for `src/dlg.c`.  It enables

+	the build of 'dlg' if the `FT_LOGGING` macro is defined.

+

+	* src/dlg/rules.mk: New sub-Makefile.

+

+	* builds/freetype.mk (DLG_DIR): New variable to include the

+	header files of the 'dlg' library.

+	(INCLUDES): Add `DLG_DIR`.

+	(FT_CFLAGS): Add `-std=c99' flag.

+	Include `src/dlg/rules.mk` file to build 'dlg' library.

+	(OBJ_S, OBJ_M): Add `DLG_OBJS_M` and `DLG_OBJS_S`.

+

+	* builds/toplevel.mk: For builds directly from the git repository

+	we need to copy files from `submodule/dlg` to `src/dlg`.

+

+	* include/freetype/config/ftoption.h, devel/ftoption.h (FT_LOGGING):

+	New macro to enable or disable the logging facility in FreeType.

+

+2020-11-27  Priyesh Kumar  <[email protected]>

+

+	* .gitmodules: Add 'dlg' library's git repository as submodule.

+

+2020-12-01  Werner Lemberg  <[email protected]>

+

+	* src/tools/chktrcmp.py (trace_use_pat): Update to current use.

+

+2020-11-20  Alexei Podtelezhnikov  <[email protected]>

+

+	[cff,cid,type1] Demote old engine for lack of CFF2.

+

+	* src/cff/cffobjs.c (cff_driver_init): Always default to Adobe engine.

+	* src/cid/cidobjs.c (cid_driver_init): Ditto.

+	* src/type1/t1objs.c (T1_Driver_Init): Ditto.

+

+2020-11-09  Werner Lemberg  <[email protected]>

+

+	* src/type42/t42parse.c (t42_parse_sfnts): More tracing messages.

+

+2020-11-04  Werner Lemberg  <[email protected]>

+

+	* meson.build: Fix .pc file generation.

+

+	For backwards compatibility we need the libtool version, not the .so

+	number.

+

+	Reported by Nikolaus.

+

+2020-10-28  Werner Lemberg  <[email protected]>

+

+	[truetype] Minor update to forthcoming OpenType 1.8.4 standard.

+

+	* src/truetype/ttgxvar.c (ft_var_load_item_variation_store): Limit

+	size of `regionCount`.

+

+2020-10-26  Werner Lemberg  <[email protected]>

+

+	* meson.build: Fix 'harfbuzz' and 'brotli' build options (#59347).

+

+	Without this patch, 'harfbuzz' and 'brotli' are always required.

+

+	Patch submitted anonymously in Savannah bug report.

+

+2020-10-23  Ben Wagner  <[email protected]>

+

+	* src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak (#59322).

+

+	The issue is that `rows` is allocated but will not be freed in the

+	event that the call to `png_read_image` fails and calls `longjmp`.

+

+2020-10-20  Werner Lemberg  <[email protected]>

+

+	* Version 2.10.4 released.

+	==========================

+

+

+	Tag sources with `VER-2-10-4'.

+

+	* docs/VERSION.TXT: Add entry for version 2.10.4.

+	* docs/CHANGES: Updated.

+

+	* README, src/base/ftver.rc, builds/windows/vc2010/index.html,

+	builds/windows/visualc/index.html,

+	builds/windows/visualce/index.html,

+	builds/wince/vc2005-ce/index.html,

+	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

+	s/2.10.3/2.10.4/, s/2103/2104/.

+

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

+

+	* builds/unix/configure.raw (version_info): Set to 23:4:17.

+	* CMakeLists.txt (VERSION_PATCH): Set to 4.

+

+2020-10-19  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix heap buffer overflow (#59308).

+

+	This is CVE-2020-15999.

+

+	* src/sfnt/pngshim.c (Load_SBit_Png): Test bitmap size earlier.

+

+2020-10-17  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/tt{colr,cpal}.c: Fix signedness warnings from VC++.

+

+2020-10-17  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (Read255UShort): Tweak types to please VC++.

+

+2020-10-10  Werner Lemberg  <[email protected]>

+

+	* Version 2.10.3 released.

+	==========================

+

+

+	Tag sources with `VER-2-10-3'.

+

+	* docs/VERSION.TXT: Add entry for version 2.10.3.

+

+	* README, src/base/ftver.rc, builds/windows/vc2010/index.html,

+	builds/windows/visualc/index.html,

+	builds/windows/visualce/index.html,

+	builds/wince/vc2005-ce/index.html,

+	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

+	s/2.10.2/2.10.3/, s/2102/2103/.

+

+	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.

+

+	* builds/unix/configure.raw (version_info): Set to 23:3:17.

+	* CMakeLists.txt (VERSION_PATCH): Set to 3.

+

+2020-09-25  Werner Lemberg  <[email protected]>

+

+	[autofit] Synchronize with ttfautohint.

+

+	This corresponds to the following commits in the ttfautohint git

+	repository:

+

+	  bb6842bd3bd437b7b4a7921b0376c860f5e73d18  Typo, formatting.

+	  d5c91ddb1cb310257a3dfe9a8e20e1fc51335faa  Add Medefaidrin script.

+

+	* src/autofit/afblue.dat: Add blue zone data for Medefaidrin.

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

+

+	* src/autofit/afscript.h: Add Medefaidrin standard characters.

+

+	* src/autofit/afranges.c, src/autofit/afstyles.h: Add Medefaidrin

+	data.

+

+2020-09-25  Werner Lemberg  <[email protected]>

+

+	Move `scripts/make_distribution_archives.py` to `src/tools`.

+

+	* scr/tools/scripts/make_distribution_archives.py: (_TOP_DIR,

+	_SCRIPT_DIR): Updated to new location.

+	(main): s/shutils.copyfile/shutils.copy/ to preserve file

+	permissions.

+	(main): Prefix source file paths with `git_dir` while copying files

+	to allow calls of the script from other places than the top-level

+	directory.

+

+2020-09-24  Werner Lemberg  <[email protected]>

+

+	* src/cff/cffgload.c (cff_slot_load): Scale `vertBearingY`.

+

+	Towards the end of the the function there is a call to

+	`FT_Outline_Get_CBox` that retrieves the glyph bbox in scaled units.

+	That sets `horiBearing{X,Y}` and `vertBearingX` but `vertBearingY`

+	is left alone, and is not scaled.

+

+	Patch from Eric Muller <[email protected]>.

+

+2020-09-24  Werner Lemberg  <[email protected]>

+

+	* src/base/ftobjs.c (FT_Load_Glyph): Trace glyph metrics.

+

+2020-09-22  Werner Lemberg  <[email protected]>

+

+	[meson] Move auxiliary scripts to `builds/meson`.

+

+	Suggested by Alexei.

+

+	* scripts/*.py: Move meson scripts to...

+	* builds/meson/*.py: ... this new location.

+

+	* meson.build: Updated.

+

+2020-09-21  David Turner  <[email protected]>

+

+	Add python script for building tarballs.

+

+	* scripts/make_distribution_archives.py: New file.

+

+	This standalone Python script should be equivalent to running `make

+	dist` with the Make-based build system, with the following minor

+	differences:

+

+	- Since `make distclean` doesn't always clean up `objs/` properly,

+	  `make dist` archives may contain some stale binaries like

+	  `objs/.libs/libfreetype.so.6` or others.

+

+	- `config.guess` and `config.sub` are not updated unless option

+	  `--gnu-config-dir=DIR` is used to specify the location of these

+	  files.

+

+	- Some bits of the auto-generated reference documentation may

+	  appear in slightly different order, probably due to issues related

+	  to mkdocs and docwriter.

+

+	As an example, the call

+

+	  scripts/make_distribution_archives.py /tmp/freetype2-dist

+

+	creates the following files under `/tmp/freetype2-dist`:

+

+	  freetype-<version>.tar.gz

+	  freetype-<version>.tar.xz

+	  ft<winversion>.zip

+

+2020-09-21  Werner Lemberg  <[email protected]>

+

+	* scripts/extract_freetype_version.py: Fix regex typos.

+

+2020-09-21  David Turner  <[email protected]>

+

+	Add Meson build project file.

+

+	Example usage:

+

+	  # Configure Meson build in directory `build-meson` to generate

+	  # release binaries comparable to to the ones from the

+	  # autotools/make build system.

+	  meson setup build-meson \

+	        --prefix=/usr/local \

+	        --buildtype=debugoptimized \

+	        --strip \

+	        -Db_ndebug=true

+

+	  # After configuring the Meson build with the above command,

+	  # compile and install to `/usr/local/`; this includes a pkg-config

+	  # file.

+	  ninja -C build-meson install

+

+	  # Alternatively, compile and install to `/tmp/aa/usr/local/...`

+	  # for packaging.

+	  DESTDIR=/tmp/aa ninja -C build-meson install

+

+	  # Generate documentation under `build-meson/docs`.

+	  ninja -C build-meson docs

+

+	Library size comparison for stripped `libfreetype.so` generated by

+	all three build systems:

+

+	  - Default build (autotools + libtool): 712 KiB

+	  - CMake build (RelWithDebInfo):        712 KiB

+	  - Meson build:                         712 KiB

+

+

+	* meson.build: New top-level Meson build file for the library.

+

+	* meson_options.txt: New file.  It holds user-selectable options for

+	the build, which can be printed with `meson configure`, and selected

+	at `meson setup` or `meson --reconfigure` time with

+	`-D<option>=<value>`.

+

+	* scripts/parse_modules_cfg.py: A script invoked by `meson.build` to

+	parse `modules.cfg` and extract important information out of it

+	(i.e., the list of modules).

+

+	* scripts/process_ftoption_h.py: New script invoked by `meson.build`

+	to process the original `ftoption.h` file.  It enables or disables

+	configuration macro variables based on the available dependencies.

+	This is similar to what other build systems are using (i.e., Meson's

+	`configure_file()` command is not used here).

+

+	* scripts/extract_freetype_version.py: New script invoked by

+	`meson.build` to extract the FreeType version number from

+	`<freetype/freetype.h>`.

+

+	* scripts/extract_libtool_version.py: New script invoked by

+	`meson.build` to extract the libtool `revision_info` data from

+	`builds/unix/configure.raw`, and to generate the corresponding

+	shared library suffix.

+

+	* scripts/generate_reference_docs.py: New script invoked by

+	`meson.build` to generate the FreeType 2 reference documentation

+	(using the `docwriter` and `mkdocs` packages, which must be already

+	installed).

+

+2020-09-11  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Improve the second pass (#58373).

+

+	Besides dropout control the second horizontal sweep is supposed to

+	clean up straight horizontal edges that are mishandled by the first

+	vertical sweep when a line passes through pixel centers.  This line

+	would present as perfectly aligned span edges in the second sweep.

+

+	* src/raster/ftraster.c (Horizontal_Sweep_Span): Replace the old

+	implementation with a better one focusing on aligned span edges only.

+

+2020-09-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Tune SMART macro (#58352).

+

+	Windows seems to perform smart dropout control at 26.6 precision.

+	To mimick Windows independent of increased precision, we need to tweak

+	the macro so that some close calls break down rather than up.

+

+	* src/raster/ftraster.c (SMART): Tweak the macro.

+

+2020-09-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Introduce SMART macro.

+

+	* src/raster/ftraster.c (SMART): New macro for smart dropout rounding.

+	(Verstical_Sweep_Drop, Horizontal_Sweep_Drop): Use it.

+

+2020-09-03  Boris Dalstein  <[email protected]>

+

+	[build] Make CMake install basic version information.

+

+	* CMakeLists.txt: Do it.

+

+2020-09-02  Alexei Podtelezhnikov  <[email protected]>

+

+	[truetype] Reduce Infinality footprint (cont'd).

+

+	* src/truetype/ttinterp.c (Ins_DELTAP): Shrink variable scope.

+	(Ins_SHPIX, Ins_MIRP): Revise if-logic.

+

+2020-09-02  Alexei Podtelezhnikov  <[email protected]>

+

+	[truetype] Reduce Infinality footprint.

+

+	* src/truetype/ttinterp.c (Ins_SHPIX, Ins_MSIRP, Ins_MIAP, Ins_MDRP,

+	Ins_MIRP): Shrink variable scopes and consolidate ifdefs.

+

+2020-09-01  Alexei Podtelezhnikov  <[email protected]>

+

+	[truetype] Refactor compensation color.

+

+	* src/truetype/ttinterp.h (TT_Round_Func): Change the last argument.

+	* src/truetype/ttinterp.c (Ins_ROUND, Ins_NROUND, Ins_MDAP, Ins_MIAP,

+	Ins_MDRP, Ins_MIRP): Move compensation retrieval from here...

+	(Round_*): ... to here.

+	* src/truetype/ttobjs.c (tt_size_init_bytecode): Reserve zero

+	compensation at color index 3.

+

+2020-08-28  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Don't set target in direct mode.

+

+	* src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Remove assignment.

+	(ft_smooth_raster_lcd) [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Ditto.

+

+2020-08-25  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftsmooth.c (ft_smooth_raster_overlap): Limit width.

+

+	Segmentation fault reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24729

+

+2020-08-22  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgload.c (TT_Get_VMetrics): Add tracing message.

+

+2020-08-05  Alexei Podtelezhnikov  <[email protected]>

+

+	[truetype] Retain OVERLAP_SIMPLE and OVERLAP_COMPOUND.

+

+	For glyphs with OVERLAP_SIMPLE or OVERLAP_COMPOUND, set

+	FT_OUTLINE_OVERLAP to render them with direct oversampling, which

+	mitigates artifacts (see 3bb512bc9f62).

+

+	* include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Redefine to rhyme

+	with OVERLAP_SIMPLE.

+	* src/base/ftgloadr.c (FT_GlyphLoader_Rewind): Reset outline flags.

+	* src/truetype/ttgload.c

+	(TT_Load_Simple_Glyph): Retain OVERLAP_SIMPLE.

+	(load_truetype_glyph): Retain OVERLAP_COMPOUND.

+

+2020-08-04  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): More tracing.

+

+2020-07-28  Alexei Podtelezhnikov  <[email protected]>

+

+	Hide internal functions with SunPro.

+

+	* include/freetype/internal/compiler-macros.h

+	(FT_INTERNAL_FUNCTION_ATTRIBUTE) <__SUNPRO_C>: Define as __hidden.

+

+2020-07-28  Anuj Verma  <[email protected]>

+

+	Fix static compilation with Visual C.

+

+	* include/freetype/internal/compiler-macros.h

+	(FT_INTERNAL_FUNCTION_ATTRIBUTE) <_WIN32>: Define as empty.

+

+2020-07-28  Priyesh Kumar  <[email protected]>

+

+	Fix `-Wformat' compiler warnings.

+

+	* src/*: Fix format specifiers.

+

+	* builds/unix/ftsystem.c (FT_Stream_Open): Ditto.

+

+2020-07-25  Werner Lemberg  <[email protected]>

+

+	Fix `-Wformat' compiler warnings.

+

+	Problem reported by Priyesh kumar <[email protected]>

+

+	* src/base/ftoutln.c (FT_Outline_Decompose): Fix number of arguments

+	to tracing macro.

+

+	* src/bdf/bdfdrivr.c (bdf_cmap_char_next, bdf_get_bdf_property):

+	Ditto.

+

+	* src/cache/ftcbasic.c (ftc_basic_family_get_count): Ditto.

+	Reformulate message.

+

+	* src/pcf/pcfdrivr.c (pcf_get_bdf_property): Ditto.

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Ditto.

+	Trace table offset, too.

+

+	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Ditto.

+

+2020-07-23  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_decompress): Fix compiler warning.

+

+	Reported by Hin-Tak.

+

+2020-07-12  Werner Lemberg  <[email protected]>

+

+	* builds/unix/configure.raw: Fix inclusion of `ftoption.h'.

+

+2020-07-07  Werner Lemberg  <[email protected]>

+

+	Fix clang warnings.

+

+	* include/freetype/internal/autohint.h

+	(FT_DECLARE_AUTOHINTER_INTERFACE): New macro.

+	* src/autofit/afmodule.h: Use it to declare

+	`af_autofitter_interface'.

+

+	* include/freetype/internal/ftobjs.h (FT_DECLARE_GLYPH): New macro.

+	* src/base/ftbase.h: Use it to declare `ft_bitmap_glyph_class' and

+	`ft_outline_glyph_class'.

+

+	* src/base/ftglyph.c: Include `ftbase.h'.

+

+	* src/cff/cffparse.c (cff_parser_run): Fix type of `t2_size'.

+

+	* src/pcf/pcfdrivr.c (pcf_cmap_char_next): Fix type of `result'.

+

+	* src/psaux/psauxmod.c (psaux_module_class): Use `FT_DEFINE_MODULE'.

+	* src/psaux/psauxmod.h: Declare `afm_parser_funcs',

+	`t1_cmap_classes', `cff_decoder_funcs', and `psaux_module_class'.

+

+	* src/pshinter/pshmod.c: Include `pshmod.h'.

+

+	* src/sfnt/sfwoff2.c (ROUND4, WRITE_SHORT): Fix implicit sign

+	conversion.

+	(compute_ULong_sum): Fix return type.

+	Fix implicit sign conversion.

+	(store_points): Fix type of `last_flag', `repeat_count', and `flag'.

+	Use casts to avoid warnings.

+	(reconstruct_glyf): Fix implicit sign conversion.

+	Use cast to avoid warning.

+	(get_x_mins): Fix implicit sign conversion.

+	* src/sfnt/ttcmap.c: Undef `TTCMAPCITEM'.

+	* src/sfnt/ttcmap.h: Define `TTCMAPCITEM' and include `ttcmapc.h' to

+	declare cmap classes.

+

+	* src/smooth/ftsmooth.c (ft_smooth_overlap_spans): Use cast.

+

+	* src/truetype/ttinterp.c (Ins_MIAP): Fix typo.

+

+2020-07-07  David Turner  <[email protected]>

+

+	[build] Really fix multi and C++ builds.

+

+	The following builds were still failing due to previous changes:

+

+	  make multi

+	  make multi CC="c++"

+	  make CC="c++"

+

+	This patch fixes the issues, which were missing includes to get the

+	right macro definitions in multi-build mode.

+

+	Also, `FT_UNUSED' is actually used by third-party code, so move it

+	back to `public-macros.h' to avoid breaking it.

+

+	* include/freetype/config/public-macros.h (FT_EXPORT): Remove

+	special definition for C++.

+	(FT_UNUSED): Define here instead of...

+	* include/freetype/config/compiler-macros.h: ... here.

+	(FT_FUNCTION_DECLARATION): Remove special definition for C++.

+	(FT_LOCAL_ARRAY_DEF): Fix definition.

+

+	* src/cache/ftccback.h, src/lzw/ftzopen.h, src/gxvalid/gxvmort.h,

+	src/gxvalid/gxvmorx.h: Add `FT_BEGIN_HEADER' and `FT_END_HEADER'.

+

+2020-07-06  David Turner  <[email protected]>

+

+	[build] Fix multi and C++ builds.

+

+	The following builds were failing due to previous changes:

+

+	  make multi

+	  make multi CC="c++"

+

+	* include/freetype/config/ftconfig.h: Remove `FT_END_HEADER'.

+

+	* include/freetype/config/ftheader.h (FT_BEGIN_HEADER,

+	FT_END_HEADER): Protect against redefinition.

+

+	* src/cache/ftccache.h, src/cache/ftcmru.h, src/pcf/pcfutil.h,

+	src/psaux/pserror.h, src/psaux/psft.h, src/psaux/psstack.h,

+	src/sfnt/woff2tags.h: Include `compiler-macros.h'.

+

+	* src/sfnt/woff2tags.c: Include `woff2tags.h'.

+

+2020-07-06  Werner Lemberg  <[email protected]>

+

+	[psaux] Improve `t1_decoder_parse_metrics' (#58646).

+

+	* src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy

+	corresponding code from old engine's `t1_decoder_parse_charstrings'

+	function to handle `op_callsubr' and `op_return'.

+

+2020-07-05  David Turner  <[email protected]>

+

+	[build] Improve visibility support of library function names.

+

+	* include/freetype/config/public-macros.h

+	(FT_PUBLIC_FUNCTION_ATTRIBUTE): New macro to tag functions as

+	public (and thus exportable).

+	(FT_EXPORT): Use it.

+

+	* include/freetype/config/compiler-macros.h

+	(FT_INTERNAL_FUNCTION_ATTRIBUTE): New macro to tag functions as

+	internal to the library (and thus hidden).  Note that on ELF

+	systems, all internal functions have hidden visibility, which avoids

+	the need to enforce this when invoking the compiler (e.g., with an

+	option like `-fvisibility=hidden').

+

+	(FT_FUNCTION_DECLARATION, FT_FUNCTION_DEFINITION): New base macros

+	to deal with C and C++ linkage issues at the same time.

+

+	(FT_LOCAL, FT_LOCAL_DEF, FT_LOCAL_ARRAY, FT_LOCAL_ARRAY_DEF,

+	FT_BASE, FT_BASE_DEF, FT_EXPORT_VAR, FT_BASE_CALLBACK,

+	FT_BASE_CALLBACK_DEF): Redefined using new macros.

+

+2020-07-05  David Turner  <[email protected]>

+

+	[build] Split off more stuff from `ftconfig.h'.

+

+	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

+	include/freetype/config/ftconfig.h: Split off macro definitions

+	required by the FreeType API headers to...

+	* include/freetype/config/public-macros.h: ...this new file.

+

+	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

+	include/freetype/config/ftconfig.h: Split off macro definitions used

+	by the library but not to be exposed to clients to...

+	* include/freetype/config/compiler-macros.h: ...this new file.

+

+	* include/freetype/internal/*.h, src/raster/ftraster.h: Include

+	`compiler-macros.h' where needed.

+

+2020-07-05  David Turner  <[email protected]>

+

+	[build] Move mac support code to `mac-support.h'.

+

+	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

+	include/freetype/config/ftconfig.h: Split off mac-specific stuff

+	to...

+	* include/freetype/config/mac-support.h: ...this new file.

+

+	* CMakeLists.txt, builds/unix/configure.raw: Remove `/undef ->

+	#undef' string replacement; the affected code is no longer part of

+	the `ftconfig.h' template.

+

+2020-07-05  David Turner  <[email protected]>

+

+	[build] Put integer type definitions into `integer-types.h'.

+

+	Refactor some of the `ftconfig.h' headers and template to move the

+	definition of the FreeType integer types (e.g., `FT_Int16') to a

+	common header file `freetype/config/integer-types.h'.

+

+	* builds/unix/ftconfig.h.in, builds/vms/ftconfig.h,

+	include/freetype/config/ftconfig.h: Split off integer type

+	definition stuff to...

+	* include/freetype/config/integer-types.h: ...this new file.

+

+	* builds/unix/ftconfig.h.in: Control the definition of

+	`FT_SIZEOF_INT' and `FT_SIZEOF_LONG' with macro

+	`FT_USE_AUTOCONF_SIZEOF_TYPES'.  If these are not defined, auto

+	detection happens in `integer-types.h' as usual based on `INTXX_MAX'

+	values.  Otherwise the autoconf-detected values are used.

+

+	* builds/unix/configure.raw (CPPFLAGS): Don't include path to

+	`config' directory.  Instead, ...

+	(FT_CONFIG_STANDARD_LIBRARY_H): Use complete path.

+

+2020-07-05  David Turner  <[email protected]>

+

+	[build] Rename `build/unix/ftconfig.in' to `ftconfig.h.in'.

+

+	Since we are no longer limited to 8.3 file names, it is simpler to

+	follow the usual conventions for template files.

+

+	* builds/unix/ftconfig.in: Renamed to...

+	* builds/unix/ftconfig.h.in: ...this.

+

+	* CMakeLists.txt, builds/unix/configure.raw: Updated.

+

+2020-07-03  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Introduce direct oversampling for overlaps.

+

+	This implements oversampling to mitigate artifacts in pixels partially

+	covered by overlapping contours.  It turns out that the 4x4

+	oversampling is sufficient but, at least, quadruples the rendering

+	time.  The outline has to set FT_OUTLINE_OVERLAP to use this method.

+

+	* include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): New flag.

+	* src/smooth/ftsmooth.c (ft_smooth_render): Check it to...

+	(ft_smooth_raster_overlap): ... inflate outline and set up direct

+	rendering for oversampling with...

+	(ft_smooth_overlap_spans): ... new span function that integrates them.

+

+2020-07-03  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Use direct rendering mode in Harmony.

+

+	Instead of rendering 3 bitmaps side by side and reshuffling, we use

+	direct rendering to deliver the bitmaps on each third byte.

+

+	* src/smooth/ftsmooth.c (ft_smooth_raster_lcd)

+	[!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Set up direct mode with...

+	(ft_smooth_lcd_spans): ... new span function.

+

+2020-07-03  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Separate LCD paths from gray rendering.

+

+	This makes `ft_smooth_render' a lot smaller and easier to follow. It

+	also cleanly separates Harmony and ClearType-style LCD rendering

+	algorithms. Now I only wish to move LCD filtering and geometry from

+	FT_Library to FT_Renderer.

+

+	* src/smooth/ftsmooth.c (ft_smooth_render): Move LCD code from here...

+	(ft_smooth_raster_lcd, ft_smooth_raster_lcdv): ... to here.

+	[FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Reorganize #ifdef's.

+

+2020-06-20  Sebastian Rasmussen  <[email protected]>

+

+	[cff] Fix handling of `style_name == NULL' (#58630).

+

+	* src/cff/cffobjs.c (cff_face_init): If a call to `cff_strcpy' fails

+	by returning NULL in `cff_face_init', `remove_style' is still

+	called.  This means that the NULL pointer is dereferenced, causing a

+	crash.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[cff] Fix another two memory leaks (#58629).

+

+	* src/cff/cffobjs.c (cff_size_init): If a call to `funcs->create'

+	fails to allocate one of the `internal->subfont' variables, make

+	sure to free `internal->topfont' and any successfully allocated

+	subfonts.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[psaux] Fix memory leak (#58626).

+

+	* src/psaux/psstack.c (cf2_stack_init): If `cf2_stack_init' fails to

+	allocate the stack, return error early.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[base] Fix memory leak (#58624).

+

+	* src/base/ftobjs.c (FT_New_Size): Avoid trying to free

+	`size->internal' unless `size' has been allocated.  This mistake

+	appeared in the fix for issue #58611.

+

+2020-06-19  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] Rework d1180b5f9598 until further notice.

+

+	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Reject large

+	outlines.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[cff, cid] Fix segfaults in case of error (#58621).

+

+	* src/cff/cffobjs.c (cff_slot_done), src/cid/cidobjs.c

+	(cid_slot_done): If `ft_glyphslot_init' fails to allocate

+	`internal', then the class' `done_slot' callback (called by

+	`ft_glyphslot_done') must not dereference the pointer to `internal'.

+

+2020-06-19  Werner Lemberg  <[email protected]>

+

+	[base] Fix UBSAN error.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23166

+

+	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Avoid values

+	larger than 32 bits.

+

+2020-06-19  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix segfault.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23402

+

+	* src/sfnt/sfwoff2.c (get_x_mins): Check whether `loca' table

+	exists.

+

+2020-06-19  Stephen McDowell  <[email protected]>

+

+	[sfnt] Support Intel compilers.

+

+	* src/sfnt/pngshim.c (premultiply_data): Intel compilers do not

+	currently support `__builtin_shuffle'.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[base] Fix memory leak (#58611).

+

+	* src/base/ftobjs.c (FT_New_Size): When the call to `clazz->init_size'

+	fails, make sure to free `size->internal'.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[cff] Fix memory leak (#58610).

+

+	* src/cff/cffobjs.c (cff_size_init): When the call to

+	`funcs->create' fails, make sure to free `internal'.

+

+2020-06-19  Werner Lemberg  <[email protected]>

+

+	* src/cff/cffload.c (cff_index_get_pointers): Rename `t' to `tbl'.

+

+2020-06-19  Sebastian Rasmussen  <[email protected]>

+

+	[cff] Free table upon error allocating other data (#58609).

+

+	* src/cff/cffload.c (cff_index_get_pointers): When new_bytes fails

+	to allocate, make sure to free the table.  Do the same for both

+	allocations if there is a later error.

+

+2020-06-13  Werner Lemberg  <[email protected]>

+

+	Remove redundant inclusion of `ft2build.h'.

+

+	* */*: Remove `#include <ft2build.h>' where possible.

+

+	* include/freetype/freetype.h: Remove cpp error about missing

+	inclusion of `ft2build.h'.

+

+2020-06-08  David Turner  <[email protected]>

+

+	Make macros for header file names optional.

+

+	We no longer have to take care of the 8.3 file name limit; this

+	allows us (a) to introduce longer, meaningful file names, and (b) to

+	avoid macro names in `#include' lines altogether since some

+	compilers (most notably Visual C++) doesn't support this properly.

+

+	*/*: Replace

+

+	   #include FOO_H

+

+	with

+

+	   #include <freetype/foo.h>

+

+	or something similar.  Also update the documentation.

+

+2020-06-02  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/ttcmap.c (tt_face_build_cmaps): Trace number of cmaps.

+

+2020-05-18  David Turner  <[email protected]>

+

+	Remove obsolete HAVE_STDINT_H probing macro.

+

+	This macro was updated by the unix configure script and the

+	`CMakeLists.txt' one, but is never used in the source tree (nor is

+	<stdint.h> included anywhere).

+

+	* CMakeLists.txt, builds/unix/ftconfig.in: Don't handle

+	`HAVE_STDINT_H'.

+

+2020-05-18  David Turner  <[email protected]>

+

+	Remove Jamfile files from the tree.

+

+	These have not been used in a very, very long time, so better remove

+	them.  A corresponding patch will be submitted to the

+	`freetype2-demos' repository.

+

+	* src/Jamfile, src/*/Jamfile, Jamrules: Delete.

+

+2020-05-12  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Turn on LCD filtering during FreeType initialization.

+

+	* src/smooth/ftsmooth.c (ft_smooth_init): Enable LCD filtering.

+

+	* include/freetype/ftlcdfil.h: Document it, remove patent warnings.

+	* include/freetype/freetype.h (FT_Render_Mode): Updated.

+	* include/freetype/config/ftoption.h, devel/ftoption.h

+	[FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Do not mention patents.

+

+2020-05-11  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Stop using dedicated LCD modules and classes.

+

+	The LCD modules were never truly independent. They mostly served as

+	a way to disable patented LCD rendering, which is no longer necessary.

+	The `smooth' module now handles LCD modes as well.

+

+	* src/smooth/ftsmooth.c (ft_smooth_lcd_renderer_class.

+	ft_smooth_lcdv_renderer_class): Deleted.

+	(ft_render_smooth): Reworked from `ft_render_smooth_generic'.

+	* src/smooth/ftsmooth.h: Remove dedicated LCD classes.

+	* src/smooth/module.mk: Remove dedicated LCD modules.

+	* include/freetype/config/ftmodule.h: Ditto.

+	* builds/amiga/include/config/ftmodule.h: Ditto.

+	* include/freetype/ftmodapi.h: Do not mention LCD modules.

+

+2020-05-09  Werner Lemberg  <[email protected]>

+

+	* Version 2.10.2 released.

+	==========================

+

+

+	Tag sources with `VER-2-10-2'.

+

+	* docs/VERSION.TXT: Add entry for version 2.10.2.

+

+	* README, Jamfile (RefDoc), src/base/ftver.rc,

+	builds/windows/vc2010/index.html, builds/windows/visualc/index.html,

+	builds/windows/visualce/index.html,

+	builds/wince/vc2005-ce/index.html,

+	builds/wince/vc2008-ce/index.html, docs/freetype-config.1:

+	s/2.10.1/2.10.2/, s/2101/2102/.

+

+	* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.

+

+	* builds/unix/configure.raw (version_info): Set to 23:2:17.

+	* CMakeLists.txt (VERSION_PATCH): Set to 2.

+

+	* docs/CHANGES: Updated.

+

+2020-05-08  Jakub Alba  <[email protected]>

+

+	* src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#58319).

+

+	The font that exceeds the old limit is Icono Regular, version

+	1.00000.

+

+2020-05-03  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/freetype.mk: Refactor for readability.

+

+2020-05-02  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds] Clean up Windows CE project files.

+

+	Remove version from filenames that caused a lot of polution in the

+	release process. Use VERSIONINFO resource instead.

+

+	* builds/wince/vc2005-ce/freetype.vcproj,

+	builds/wince/vc2008-ce/freetype.vcproj,

+	builds/windows/visualce/freetype.vcproj,

+	builds/windows/visualce/freetype.dsp: s/2101//g, but add `ftver.rc'.

+	* builds/wince/vc2008-ce/index.html,

+	builds/wince/vc2005-ce/index.html,

+	builds/windows/visualce/index.html: s/2101//g.

+

+2020-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	* devel/ft2build.h: Override FT_CONFIG_MODULES_H here as well.

+

+2020-05-01  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds/unix] Consolidate marco overrides (for the demos to see them).

+

+	* builds/unix/unix-cc.in (FT_CONFIG_MODULES_H, FT_CONFIG_OPTIONS_H):

+	Override them here...

+	* builds/freetype.mk: ... instead of here.

+

+2020-04-08  Werner Lemberg  <[email protected]>

+

+	Allow setting `CC' in Unix build (#58051).

+

+	* builds/unix/unix-cc.in (CC): Use `override'.  The command line

+	  value of `CC' (if any) is stored already in `CCraw'.

+

+2020-04-04  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Return if single stream operation fails.

+

+	* src/sfnt/sfwoff2.c (get_x_mins): Do it.

+

+	* src/sfnt/woff2tags.c: Remove unused include.

+

+2020-03-22  Nikhil Ramakrishnan  <[email protected]>

+

+	[docs] Fix building docs if `srcdir' != `builddir'.

+

+	`docs/reference/*' was moved one directory up in commit 237fed6.

+

+	* builds/unix/unix-def.in (PIP): Remove variable.

+

+	* configure: Create `docs' directory and copy assets from

+	`docs/markdown'.

+

+	* docs/README: Output directory is `reference'.

+

+2020-03-21  Nikhil Ramakrishnan  <[email protected]>

+

+	[docwriter] Drop support for Python < 3.5.

+

+	Python versions < 3.5 have reached end-of-life and as such, no

+	security or bug fixes will be provided for those versions.  See

+

+	  https://devguide.python.org/#status-of-python-branches

+

+	for more information.

+

+	* Jamfile (RefDoc): Add `site' parameter.

+

+	* builds/detect.mk (std_setup): Update Python version requirement.

+

+	* builds/freetype.mk (refdoc-venv): Use pip as `python -m pip'.

+

+	* builds/unix/ax_compare_version.m4,

+	builds/unix/ax_prog_python_version.m4: Macros to detect Python

+	version.  New files.

+

+	* builds/unix/configure.raw: Check for Python >= 3.5 and remove

+	check for `pip'.

+

+	* docs/CHANGES, docs/INSTALL.GNU, docs/README: Updated.

+

+2020-03-02  Moazin Khatti  <[email protected]>

+

+	[gzip] Support `gzip' encoded header conditionally.

+

+	In order to support `gzip' encoded header the call to

+	`inflateInit2' was modified in commit 6a92b1fadde26477a9179.

+	However, this code breaks with the outdated internal version

+	of zlib.  This is a temporary fix to conditionally support

+	`gzip' encoded header whenever a system installation of zlib

+	is being used.

+

+	Problem report in

+

+	  https://lists.nongnu.org/archive/html/freetype-devel/2020-02/msg00023.html

+

+	* src/gzip/ftgzip.c (FT_Gzip_Uncompress): Change the the call to

+	`inflateInit2' depending on whether the system installation is

+	being used or the internal copy.

+

+2020-02-29  Ben Wagner  <[email protected]>

+

+	[truetype] Fix state of `FT_Face' for buggy `gvar' tables (#57923).

+

+	By resetting the blend as implemented with this commit fonts with

+	invalid `gvar' tables may keep calling into `ft_var_load_gvar' from

+	`tt_set_mm_blend' and failing, but the font was invalid anyway and

+	we want to keep seeing the failure in `tt_set_mm_blend'.

+

+	* src/truetype/ttgxvar.c (ft_var_load_gvar): Calculate length of

+	offset array once.

+	Allocate arrays after `FT_FRAME_ENTER' (extra check before

+	allocating and avoid needing to free array later if error entering

+	frame).

+	Always call `FT_FRAME_EXIT'.

+	Consistently set counts immediately after array initialized.

+	Reset the blend (particularly `blend->glyphoffsets') on failure.

+

+2020-03-01  Nikhil Ramakrishnan  <[email protected]>

+

+	[docs] Update docwriter stylesheet.

+

+	This change is required to support docwriter 1.2.1.

+

+	See

+

+	  https://github.com/freetype/docwriter/issues/36

+

+	for more information.

+

+	* docs/markdown/stylesheets/extra.css:

+	(.md-typeset code) -> (.md-typeset pre>code)

+	(pre) -> (pre>code)

+	(p, .md-typeset p, h4): Remove commented styles.

+	(table.index): Remove unused styles.

+

+2020-02-28  Ben Wagner  <[email protected]>

+

+	[truetype] Add better checks for loading `gvar' table (#57905).

+

+	* src/truetype/ttgxvar.c (ft_var_load_gvar): Delay settings of any

+	`blend->xxxcount' values until the corresponding data has been

+	checked.

+	Also do some sanitizing to avoid a too early exit.

+

+	(TT_Vary_Apply_Glyph_Deltas): Improve tracing message.

+

+2020-02-27  Werner Lemberg  <[email protected]>

+

+	Make `FT_HAS_*' and `FT_IS_*' really return true (#57906).

+

+	* include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Implement it.

+

+2020-02-25  Dominik Röttsches  <[email protected]>

+

+	Fix for CFF space glyph regression (#57541).

+

+	* src/psaux/psft.c (cf2_decoder_parse_substrings): Replace early-out

+	  with FT_OFFSET.

+

+2020-02-22  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix font table access.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20778

+

+	* src/sfnt/sfwoff2.c (get_x_mins): Explicitly check for presence of

+	`head' table, which might not have been processed yet.

+

+2020-02-21  Werner Lemberg  <[email protected]>

+

+	[psaux] Make `t1_decoder_parse_metrics' handle `op_div' (#57519).

+

+	* src/psaux/t1decode.c (t1_decoder_parse_metrics): Copy

+	corresponding code from old engine's `t1_decoder_parse_charstrings'

+	function.

+

+2020-02-19  Nikolaus Waxweiler  <[email protected]>

+

+	[autofit] Add support for Hanifi Rohingya script.

+

+	* src/autofit/afblue.dat: Add blue zone data for Hanifi Rohingya.

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

+

+	* src/autofit/afscript.h: Add Hanifi Rohingya standard character.

+

+	* src/autofit/afranges.c, src/autofit/afstyles.h: Add Hanifi

+	  Rohingya data.

+

+2020-02-19  Werner Lemberg  <[email protected]>

+

+	Require HarfBuzz 1.8.

+

+	* builds/unix/configure.raw, CMakeLists.txt: Request HarfBuzz 1.8.0

+	or newer.

+

+	We are going to add auto-hinter support for Hanifi Rohingya, which

+	was introduced in Unicode 11.0.

+

+2020-02-12  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/ttcmap.c (tt_face_build_cmaps): Ignore version (#57708).

+

+2020-02-04  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#57732).

+

+	The font that exceeds the old limit is Constantine, version 1.001.

+

+2020-01-04  Werner Lemberg  <[email protected]>

+

+	[base] Fix `FREETYPE_PROPERTIES=type1:hinting-engine=adobe`.

+

+	* src/base/ftpsprop.c (ps_property_set) [hinting-engine]: Avoid an

+	incorrect return value that caused a warning.  The function did the

+	right thing, though.

+

+2020-01-03  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix memory leaks and a runtime warning.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19773

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18101

+

+	* src/sfnt/sfwoff2.c (compute_ULong_sum): Add missing cast.

+	(reconstruct_hmtx): Add missing deallocation calls.

+

+2020-01-02  Dominik Röttsches  <[email protected]>

+

+	[truetype] Fix UBSan warning on offset to nullptr (#57501).

+

+	* src/truetype/ttinterp.c (Ins_CALL): Fail if `exc->FDefs' is null.

+

+2019-12-31  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Allow bitmap-only fonts (#57394).

+

+	* src/sfnt/sfwoff2.c (reconstruct_font): Fix test for `glyf' and

+	`loca' tables.

+

+2019-12-21  Hugh McMaster  <[email protected]>

+

+	[docs] (2/2) Fix generation of API documentation (#56745).

+

+	Creating the API Reference in the (new) `reference' sub-directory is

+	consistent with other documentation sub-topics, such as `design',

+	`glyphs' and `tutorial'.

+

+	This patch fixes broken hyperlinks in the documentation pointing to

+	and from the API Reference.  It also allows web assets to load from

+	their relative paths.

+

+	* builds/freetype.mk (DOC_DIR): Adjust.

+	(refdoc, refdoc-venv): Add `--site' argument.

+

+	* builds/toplevel.mk (do-dist): Updated.

+

+2019-12-21  Hugh McMaster  <[email protected]>

+

+	[docs] (1/2) Move static web assets (#56745).

+

+	* docs/reference/*: Move ...

+	* docs: ... one directory up.

+

+2019-12-21  Dominik Röttsches  <[email protected]>

+

+	Fix more UBSan warnings on adding offset to nullptr (#57432).

+

+	* src/truetype/ttinterp.c (Ins_LOOPCALL), src/psaux/psft.c

+	(cf2_initLocalRegionBuffer): Use `FT_OFFSET'.

+

+2019-12-16  Werner Lemberg  <[email protected]>

+

+	[truetype] Fix UBSan warnings on adding offsets to nullptr.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/chromium/issues/detail?id=1032152

+

+	* src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Use `FT_OFFSET'.

+

+2019-12-14  Werner Lemberg  <[email protected]>

+

+	[truetype] Fix integer overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19305

+

+	* src/truetype/ttinterp.c (Ins_MIRP): Use `ADD_LONG'.

+

+2019-12-13  Werner Lemberg  <[email protected]>

+

+	Another bunch of UBSan warnings on adding offsets to nullptr.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19427

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19433

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19441

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19451

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19452

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19457

+

+	* src/autofit/aflatin.c (af_latin_hints_compute_segments,

+	af_latin_hints_compute_edges): Use `FT_OFFSET'.

+

+	* src/base/ftstream.c (FT_Stream_EnterFrame): Use `FT_OFFSET'.

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Exit early

+	if there is no charstring.

+

+	* src/psaux/psobjs.c (t1_decrypt): Use `FT_OFFSET'.

+

+	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Exit early for

+	zero bitmap dimensions.

+

+2019-12-09  Dominik Röttsches  <[email protected]>

+

+	Fix more UBSan warnings on adding offset to nullptr (#57384).

+

+	* src/smooth/ftsmooth.c (ft_smooth_render_generic),

+	src/psaux/psobjs.c (ps_table_add): Use `FT_OFFSET'.

+

+2019-12-05  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttinterp.c (TT_RunIns): Use `FT_OFFSET'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/chromium/issues/detail?id=1030614

+

+2019-12-03  Werner Lemberg  <[email protected]>

+

+	More nullptr offset UBSan warnings (#57331, #57347).

+

+	* src/autofit/afcjk.c (af_cjk_hints_compute_segments),

+	src/psaux/psft.c (cf2_getSeacComponent), src/truetype/ttinterp.c

+	(Ins_UNKNOWN): Use `FT_OFFSET'.

+

+2019-11-29  Dominik Röttsches  <[email protected]>

+

+	Avoid more nullptr offset UBSan warnings (#57316).

+

+	* src/base/ftoutln.c (FT_Outline_Transform): Bail on empty points.

+	* src/cff/cffload.c (cff_subfont_load): Use `FT_OFFSET'.

+	* src/psaux/psft.c (cf2_decoder_parse_substrings): Early out if

+	`charstring_base' or `charstring_len' are null.

+	* src/sfnt/ttload.c (tt_face_load_name): Use `FT_OFFSET'.

+

+2019-11-23  John Stracke  <[email protected]>

+

+	[base] Really fix #57194.

+

+	Apply accidentally missed second part of patch.

+

+	* src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Call

+	`FT_GlyphLoader_CreateExtra'.

+

+2019-11-23  Werner Lemberg  <[email protected]>

+

+	[truetype] Avoid sanitizer warning (#57289).

+

+	* src/truetype/ttpload.c (tt_face_get_device_metrics): Use

+	`FT_OFFSET'.

+

+2019-11-23  Armin Hasitzka  <[email protected]>

+

+	[truetype] Fix integer overflow (#57287).

+

+	* src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.

+

+2019-11-23  Ben Wagner  <[email protected]>

+

+	[sfnt] Avoid sanitizer warning (#57286).

+

+	* src/sfnt/ttcmap.c (tt_face_build_cmaps): Avoid possible `NULL +

+	offset' computation.

+	Tag `table' as `const'.

+

+2019-11-23  John Stracke  <[email protected]>

+            Werner Lemberg  <[email protected]>

+

+	[base] Fix `NULL + offset' sanitizer warnings (#57194).

+

+	* src/base/ftgloadr.c (FT_GlyphLoader_Adjust_Points,

+	FT_GlyphLoader_Adjust_Subglyphs): Use `FT_OFFSET'.

+	(FT_GlyphLoader_CreateExtra): Add short cut if some values are zero.

+

+2019-11-23  Werner Lemberg  <[email protected]>

+

+	* include/freetype/internal/ftmemory.h (FT_OFFSET): New macro.

+

+	Use this for `base + offset' pointer calculations where `base' can

+	be NULL (triggering a sanitizer warning even if the resulting

+	pointer gets never dereferenced since it is undefined behaviour

+	in C).

+

+	Suggested by Ben Wagner.

+

+2019-11-23  Ben Wagner  <[email protected]>

+

+	[sfnt] Ensure OTTO fonts have tables (#57285).

+

+	* src/sfnt/ttload.c (tt_face_load_font_dir): Add test.

+

+2019-11-23  Behdad Esfahbod  <[email protected]>

+

+	Minor fixes for recent compilers.

+

+	* src/gzip/infutil.h (inflate_mask): Add `const'.

+

+	* src/autofit/aflatin2.c: Include `ft2build.h'.

+

+2019-11-07  Nikolaus Waxweiler  <[email protected]>

+

+	* CMakeLists.txt: Minor additions to the notes, compile

+	  builds/unix/ftsystem.c instead of src/base/ftsystem.c on UNIX.

+

+	The latter change is based on the code proposed by rim in #55235.

+

+2019-10-25  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Check `num_fonts' for TTCs.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18494

+

+2019-10-22  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Avoid undefined shift.

+

+	Also improve tracing.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18390

+

+2019-10-10  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/pngshim.c (premultiply_data): Optimize for __SSE__ only.

+

+2019-10-10  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (reconstruct_glyf): Check `triplet_size'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18108

+

+2019-10-09  John Tytgat  <[email protected]>

+

+	[cff] Fix FT_FACE_FLAG_GLYPH_NAMES for CFF2 based fonts (#57023).

+

+	* src/cff/cffobjs.c (cff_face_init): Don't set

+	FT_FACE_FLAG_GLYPH_NAMES for CFF2 based fonts.

+

+2019-10-08  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix SFNT table checks.

+

+	Also reduce number of SFNT table lookups.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18065

+

+	* include/freetype/internal/wofftypes.h (WOFF2_InfoRec): Add fields

+	`glyf_table', `loca_table', and `head_table'.

+

+	* src/sfnt/sfwoff2.c (reconstruct_glyf): Update signature.

+	Use table pointers in `info' parameter.

+	(get_x_mins): Check `maxp_table'

+	Use table pointers in `info' parameter.

+	(reconstruct_font):  Use and set table pointers in `info' parameter.

+	Fix check for `glyf' and `loca' tables.

+	Update call to `reconstruct_glyf'.

+	(woff2_open_font): Updated.

+

+2019-10-06  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (reconstruct_glyf): Fix reallocation.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18046

+

+2019-10-06  Werner Lemberg  <[email protected]>

+

+	Improve memory debugging.

+

+	* include/freetype/internal/ftmemory.h (FT_MEM_FREE): Use

+	`FT_DEBUG_INNER' to set source code file name and line.

+

+	* src/base/ftdbgmem.c (ft_mem_table_remove): Better formatting of

+	tracing message.

+

+2019-10-03  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2 (reconstruct_font): Fix reallocation.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17966

+

+2019-10-01  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftstroke.c (ft_stroker_inside): Speed up.

+

+2019-10-01  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2 (woff2_open_font): Initialize `woff2.ttc_fonts'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17804

+

+2019-09-30  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (reconstruct_font): Fix memory leak.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17812

+

+2019-09-30  Werner Lemberg  <[email protected]>

+

+	[woff2] Reject fonts without `head' table.

+

+	Also fix memory deallocation in case of error.

+

+	`head' problem reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17820

+

+	* src/sfnt/sfwoff2.c (reconstruct_glyf): Don't use `stream_close'.

+	Abort if `head_table' is NULL.

+	Don't free `transformed_buf' in case of error.

+	(woff2_open_font): Don't set `uncompressed_buf' to NULL.

+

+2019-09-29  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix compiler warnings.

+

+	Problem reported by Alexei.

+

+	* src/sfnt/sfwoff2.c (reconstruct_glyf): Initialize `x_min'.

+	(reconstruct_font): Initialize `num_hmetrics'.

+	(woff2_open_font): Initialize `info'.

+

+2019-09-28  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Fix sanity check.

+

+	Correct thinkos in patch from 2019-09-01.

+

+2019-09-28  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix memory leaks.

+

+	One of them reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17766

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Free `info->x_mins' and

+	`woff2->ttc_fonts'.

+

+	(reconstruct_glyf): Initialize `info->x_mins'.

+

+2019-09-27  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftstroke.c (ft_stroker_cap): Speed up caps.

+

+2019-09-25  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftstroke.c (ft_stroker_outside): Speed up clipped miter.

+	* include/freetype/ftstroke.h: Wordsmith miter docs.

+

+2019-09-25  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Check (sum of) table sizes.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17684

+

+2019-09-23  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftstroke.c (ft_stroke_border_arcto): Speed up calculations.

+

+2019-09-20  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Fix memory leaks.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16896

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Fix error handling.

+	Free `uncompressed_buf'.

+	(reconstruct_font): Free `transformed_buf'.

+

+2019-09-17  Werner Lemberg  <[email protected]>

+

+	* src/otvalid/otvcommon.c (otv_Coverage_get_last): Guard `count'.

+

+	Problem reported by Marc Schönefeld <[email protected]>.

+

+2019-09-17  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Check table index.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17100

+

+2019-09-15  Avi Halachmi (:avih)  <[email protected]>

+

+	[cmake] Don't fail if brotli is missing (#56894).

+

+	The libs which cmake controls are commented out at

+

+	  include/freetype/config/ftoption.h

+

+	and cmake un-comment each enabled library, but the brotli option was

+	not commented out, therefore `FT_CONFIG_OPTION_USE_BROTLI' remained

+	defined even if brotli was missing/disabled/etc.

+

+	Comment it such that cmake can control it, which means leaving it

+	undefined if brotli is missing.

+

+	* include/freetype/config/ftoption.h: Fix typo.

+

+2019-09-05  Werner Lemberg  <[email protected]>

+

+	[cmake] Add brotli support.

+

+	* CMakeLists.txt (FT_WITH_BROTLI): New option.

+

+	* builds/cmake/FindBrotliDec.cmake: New file.

+

+2019-09-05  Werner Lemberg  <[email protected]>

+

+	Fix handling of `AF_CONFIG_OPTION_INDIC'.

+

+	* devel/ftoption.h, include/freetype/config/ftoption.h:

+	`AF_CONFIG_OPTION_INDIC' needs `AF_CONFIG_OPTION_CJK'.

+

+2019-09-05  Werner Lemberg  <[email protected]>

+

+	CMakeLists.txt: Fix generation of DLL related stuff (#56852).

+

+	Extract `version_info' variable from `builds/unix/configure.raw' and

+	use the data to correctly set `LIBRARY_VERSION' and

+	`LIBRARY_SOVERSION'.

+

+	Also use the data to set `ft_version' field in `freetype2.pc'.

+	Also fix the needed minimum version of HarfBuzz in `freetype2.pc'.

+

+2019-09-03  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (compute_ULong_sum): Fix undefined shift.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16933

+

+2019-09-01  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Add sanity check.

+

+	Don't trust `totalSfntSize' unconditionally.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16893

+

+2019-08-27  Dominik Röttsches  <[email protected]>

+

+	[woff2] Don't use `FT_UInt64' (#56815).

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Use `FT_UInt32' for

+	`file_offset'.  This fixes builds on platforms where `FT_LONG64' is

+	not defined while still being sufficient to store a file offset.

+

+2019-08-27  Werner Lemberg  <[email protected]>

+

+	[truetype] Prevent crash in `TT_Set_Named_Instance' (#56813).

+

+	* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Fix error

+	handling.

+

+2019-08-27  Werner Lemberg  <[email protected]>

+

+	[woff2] Fix compiler warnings.

+

+	* src/sfnt/sfwoff2.c (read_num_hmetrics): Remove unused argument

+	`table_len'.

+	Update caller.

+	(triplet_decode, compute_bbox, store_loca, reconstruct_glyf): Make

+	`i' variable unsigned.

+	(reconstruct_glyph): Remove condition which is always false.

+	(reconstruct_html): Removed unused argument `transformed_size'.

+	Update caller.

+

+	* src/sfnt/woff2tags.c (woff2_known_tags): Remove condition which is

+	always false.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Check whether known tag is in array bounds.

+

+	If table tag is not 0x3f, we expect a value between 0 and 62.  If

+	this is not the case, exit with errors.

+

+	* src/sfnt/sfwoff2/c: Check whether table tag makes sense.

+

+	* src/sfnt/woff2tags.c: Return 0 if tag is out of bounds.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	* src/sfnt/sfwoff2.c: Improve trace comments.

+

+	Adjust tracing levels for comments, and more formatting.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Support `hmtx' reconstruction when `glyf' is untransformed.

+

+	`reconstruct_hmtx' requires `info->x_mins' and `info->num_glyphs' to

+	reconstruct the hmtx table.  In case glyf is not transformed, we

+	call `get_x_mins' which does the necessary work.

+

+	* src/sfnt/sfwoff2.c (get_x_mins): New function.

+	(reconstruct_font): Call get_x_mins.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[sfnt] Support `face->num_faces' for WOFF2 fonts.

+

+	Set correct value of `face->num_faces' for WOFF2 fonts.  This is

+	being handled separately because we only load the tables for the

+	requested font face in `woff2_open_font' and create a single-face

+	sfnt stream.

+

+	The full discussion is at:

+

+	  https://lists.gnu.org/archive/html/freetype-devel/2019-08/msg00000.html

+

+	* src/sfnt/sfobjs.c (sfnt_open_font): Add parameter

+	`woff2_num_faces'.

+	(sfnt_init_face): Introduce variable `woff2_num_faces', and change

+	`face->root.num_faces' if `woff2_num_faces' is set.

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Validate requested face

+	index and handle negative face indices.

+

+	* src/sfnt/sfwoff2.h (woff2_open_font): Add parameter `num_faces' to

+	declaration.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Improve memory and error handling.

+

+	Free up memory after use, and improve error handling.

+

+	* src/sfnt/sfwoff2.c (reconstruct_font, woff2_open_font): Implement

+	changes.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Avoid too many calls to `FT_REALLOC'.

+

+	We do this by using `totalSfntSize' as an initial reference, and

+	extending the buffer when required.  This reduces rendering time

+	considerably.

+

+	* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec): Add

+	`totalSfntSize', rename `total_sfnt_size' to `actual_sfnt_size'.

+

+	* src/sfnt/sfwoff2.c (write_buf): Add parameter `dst_size' to keep

+	track of and update total size of stream.

+

+	(WRITE_SFNT_BUF, WRITE_SFNT_BUF_AT): Modify macros accordingly.

+

+	(pad4, store_loca, reconstruct_glyf, reconstruct_hmtx,

+	reconstruct_font): Update parameters to accept `sfnt_size'.

+

+	(woff2_open_font): Add variable `sfnt_size'.  Use WOFF2 header field

+	`totalSfntSize' as initial reference (if value makes sense) and

+	allocate `totalSfntSize' bytes for the sfnt stream.  `write_buf'

+	handles reallocation if and when required.  Also resize the stream

+	to `actual_sfnt_size' after reconstruction.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Reconstruct `loca', `hmtx', and swap out stream.

+

+	Add necessary functions to reconstruct loca and hmtx tables (the two

+	remaining tables that can have a transform).  `woff2_open_font' is

+	now capable of loading a woff2 font face.  This code may still need

+	more refining and better memory management.

+

+	* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec): Add total

+	(final) size of sfnt stream.

+

+	(WOFF2_InfoRec): Add header checksum value.

+

+	* src/sfnt/sfobjs.c (sfnt_open_font): Change `face_instance_index'

+	parameter to its pointer so its value can be modified by

+	`woff2_open_font'.

+

+	* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF_AT): New macro to write into

+	sfnt buffer at given position.

+

+	(write_buf): Add parameter `extend_buf' which allows caller to

+	specify whether buffer should be reallocated before copying data.

+

+	(WRITE_SFNT_BUF): Updated.

+

+	(pad4, store_loca, reconstruct_htmx): New functions.

+

+	(reconstruct_glyf): Calculate loca values and store them.

+

+	(reconstruct_font): Call `reconstruct_hmtx', write table record

+	entries, and calculate table checksums.  Also calculate font

+	checksum and update `checksumAdjustment' entry in head table.

+

+	(woff2_open_font): Open stream for sfnt buffer, swap out input

+	stream and return.

+

+	* src/sfnt/sfwoff2.h (woff2_open_font): Modify parameter to accept

+	pointer to `face_index'.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Reconstruct transformed `glyf' table.

+

+	Reconstruct `glyf' table if it is transformed in the uncompressed

+	table stream.  Also add necessary structures, macros and functions.

+

+	* include/freetype/internal/wofftypes.h (WOFF2_InfoRec,

+	WOFF2_SubstreamRec, WOFF2_PointRec): New structures.

+	(WOFF2_TableRec): s/OrigLength/dst_length/.

+

+	* src/sfnt/sfwoff2.c (READ_255USHORT, READ_BASE128): Use

+	`FT_SET_ERROR' to set implicit `error' variable.

+

+	(WRITE_SHORT): New macro.

+

+	(N_CONTOUR_STREAM, N_POINTS_STREAM, FLAG_STREAM, GLYPH_STREAM,

+	COMPOSITE_STREAM, BBOX_STREAM, INSTRUCTION_STREAM): New macros to

+	refer to substreams of the transformed `glyf' tables.

+

+	(Read255UShort, ReadBase128): Return errors set by `FT_READ_XXX'

+	macros.

+

+	(with_sign, safe_int_addition): New functions to add sign to values

+	based on a flag and perform safe addition respectively.

+

+	(triplet_decode): Decode variable-length (flag, xCoordinate,

+	yCoordinate) triplet for a simple glyph.   See

+

+	  https://www.w3.org/TR/WOFF2/#triplet_decoding

+

+	(store_points, compute_bbox, composteGlyph_size, reconstruct_glyf):

+	New functions.

+

+	(reconstruct_font): Call `reconstruct_glyf'.

+

+	* src/sfnt/sfwoff2.h: Add required constants.

+

+	* src/sfnt/woff2tags.h: Move out constants to `sfwoff2.h'.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Copy un-transformed tables to sfnt stream.

+

+	Copy un-transformed tables to the sfnt stream.

+

+	* src/sfnt/sfwoff2.c: (WRITE_SFNT_BUF): New macro.

+	(write_buf): New function.  Extend memory of `dst' buffer and copy

+	bytes from `src'.

+	(compute_ULong_sum): New function.  Calculate checksum of table.

+	(reconstruct_font): Change `FT_Byte* sfnt' to `FT_Byte**

+	sfnt_bytes'.  This has been done because we reallocate memory to

+	`sfnt' multiple times, which may change the pointer value of `sfnt'.

+	This new pointer must be propogated back to the caller.  Same reason

+	for using a double pointer in `write_buf'.

+

+	* src/sfnt/woff2tags.h (WOFF2_DEFAULT_MAX_SIZE): New macro used for

+	overflow checking.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Create stream for uncompressed buffer.

+

+	Uncompressed buffer is now an `FT_Stream'.

+

+	Perform basic checks and start iterating over tables.

+

+	* src/sfnt/sfwoff2.c (stream_close, find_table, read_num_hmetrics):

+	New functions.

+	(reconstruct_font): Modify parameters and iterate over tables.

+	(woff2_open_font): Updated.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Handle TTCs and start reconstructing font.

+

+	We `handle' TTCs by modifying the `indices' array to point to only

+	those tables that are part of the requested `face_index'.

+

+	Set and use `num_tables' in `WOFF2_TtcFont'.

+

+	* src/sfnt/sfwoff2.c (reconstruct_font): New function.

+	(woff2_open_font): Start reconstruction of font.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Get known tags from function.

+

+	Change `KnownTags' to a function (`woff2_known_tags').  This avoids

+	introducing a global constant array.  This function returns the

+	specified index without *any* checks.  The caller must ensure that

+	`index' is within array limits.

+

+	* src/sfnt/sfwoff2.c (woff2_open_font): Change `KnownTags[...]'

+	notation to `woff2_known_tags( ...  )'.

+

+	* src/sfnt/woff2tags.c: Perform changes.

+

+	* src/sfnt/woff2tags.h: Update definitions.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Minor.

+

+	* src/sfnt/sfwoff2.c (woff2_uncompress): Add error message

+	(woff2_open_font): Free `uncompressed_buf'.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Uncompress Brotli streams and `face_index' support.

+

+	WOFF2 compressed stream is now uncompressed if Brotli is available.

+	This data is stored in a separate buffer (uncompressed_buf) because

+	it does not contain direct table data.  Certain tables have

+	transformations applied to them, and they must be reconstructed

+	before we can write those tables to the SFNT stream.

+

+	`face_index' is now being passed as a parameter to

+	`woff2_open_font'.

+

+	* src/sfnt/sfobjs.c (sfnt_open_font): Add parameter

+	`face_instance_index'.

+

+	* src/sfnt/sfwoff2.c (woff2_uncompress): New function.

+	(woff2_open_font): Call `woff2_uncompress'.

+	(compute_first_table_offset): Fix return type.

+

+	* src/sfnt/sfwoff2.h (woff2_open_font): Modify declaration.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	* builds/unix/configure.raw: Change argument name to `brotli'.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	Add Brotli dependency and required checks.

+

+	Brotli is required for decompressing WOFF2 font directory streams.

+	The library is thus being added as an optional dependency for

+	FreeType.

+

+	* builds/unix/configure.raw: Add checks for `libbrotlidec'.

+	(REQUIRES_PRIVATE, LIBS_PRIVATE, LIBSSTATIC_CONFIG): Updated.

+

+	* devel/ftoption.h, include/freetype/config/ftoption.h

+	(FT_CONFIG_OPTION_USE_BROTLI): New macro.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Write SFNT Offset table.

+

+	* src/sfnt/sfwoff2.c (WRITE_USHORT, WRITE_ULONG): New macros.

+	(compare_tags): New function.

+	(woff2_open_font): Implement it.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	* src/sfnt/sfwoff2.c: #undef macros.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[woff2] Read table and collection directory.

+

+	* include/freetype/internal/wofftypes.h (WOFF2_TtcFontRec): New

+	structure.

+	(WOFF2_HeaderRec): Add more fields.

+

+	* src/sfnt/sfwoff2.c (READ_255USHORT, READ_BASE128, ROUND4): New

+	macros.

+	(Read255UShort, CollectionHeaderSize, compute_first_table_offset):

+	New functions.

+	(ReadBase128): Use `FT_READ_BYTE'.

+	(woff2_open_font): Add functionality to read table directory and

+	collection directory (if present).

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[sfnt] Include `woff2tags.c' for building.

+

+	* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `woff2tags.c'.

+

+	* src/sfnt/sfnt.c: Include `woff2tags.c'.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[sfnt] Add WOFF2 constants.

+

+	Add constants required for WOFF2, and known table tags as defined in

+	the specification.  See

+

+	  https://www.w3.org/TR/WOFF2/#table_dir_format

+

+	for details.

+

+	* src/sfnt/woff2tags.c, src/sfnt/woff2tags.h: New files.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	[sfnt] Read WOFF 2 header.

+

+	Check for WOFF2 tag, call `woff2_open_font', and implement it to read

+	header according to specification.

+

+	* include/freetype/internal/fttrace.h: Add `sfwoff2.c'.

+

+	* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `sfwoff2.c'.

+

+	* src/sfnt/sfnt.c: Include `sfwoff2.c'.

+

+	* src/sfnt/sfobjs.c (sfnt_open_font): Check for `wOF2' tag and call

+	`woff2_open_font'.

+

+	* src/sfnt/sfwoff2.c, src/sfnt/sfwoff2.h: New files.

+

+2019-08-27  Nikhil Ramakrishnan  <[email protected]>

+

+	Add structures for WOFF2.

+

+	Add structures and macro for WOFF 2 header and table directory.

+

+	* include/freetype/internal/wofftypes.h (WOFF2_HeaderRec,

+	WOFF2_TableRec_): New structures.

+

+	* include/freetype/tttags.h (TTAG_wOF2): New macro.

+

+2019-08-26  Werner Lemberg  <[email protected]>

+

+	* src/psaux/cffdecode.c (cff_operator_seac): Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16470

+

+2019-08-26  Werner Lemberg  <[email protected]>

+

+	[type1] Fix `FT_Get_Var_Axis_Flags' (#56804).

+

+	* src/type1/t1load.c (T1_Get_MM_Var): Allocate space for axis flags.

+	Also remove redundant assignment.

+

+2019-07-24  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftbbox.c (cubic_peak): Sanitize left shift (#56586).

+

+2019-07-22  Weiyi Wu  <[email protected]>

+

+	* src/cid/cidload.c (cid_hex_to_binary): Fix typo (#56653).

+

+2019-07-12  Werner Lemberg  <[email protected]>

+

+	[sfnt, winfonts] Avoid memory leaks in case of error (#56587).

+

+	* src/sfnt/sfwoff.c (woff_open_font): Call `FT_FRAME_EXIT' in case

+	of error.

+

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

+

+2019-07-12  Ben Wagner  <[email protected]>

+

+	Properly handle phantom points for variation fonts (#56601).

+

+	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Scale phantom

+	points if HVAR and/or VVAR is present.

+

+2019-07-04  Werner Lemberg  <[email protected]>

+

+	[psaux] (2/2) Handle fonts that use SEAC for ligatures (#56580).

+

+	The same as previous commit but for the old engine.

+

+	* src/psaux/t1decode.c (t1operator_seac): Implement it.

+

+2019-07-04  Chris Liddell <[email protected]>

+

+	[psaux] (1/2) Handle fonts that use SEAC for ligatures (#56580).

+

+	As originally intended, a Type 1 SEAC charstring would be used for

+	an accented glyph (like `acaron' or `uumlaut'), where the advance

+	width of the SEAC glyph is the same as that of the `base' glyph

+	(like `a' or `u').  In this case it is not uncommon for the SEAC

+	glyph to not use an (H)SBW opcode of its own but to rely on the

+	value from the base glyph.

+

+	However, out-of-spec fonts also use SEAC glyphs for ligatures (like

+	`oe' or `fi'), and in those cases the overall advance width is

+	greater than that of the `base' glyph.  For this reason we have to

+	allow that the SEAC glyph can have an (H)SBW value of its own, and

+	if it has, retain this value, rather than the one from the base

+	glyph.

+

+	* src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escSEAC>:

+	Implement it.

+

+2019-07-01  Werner Lemberg  <[email protected]>

+

+	* Version 2.10.1 released.

+	==========================

+

+

+	Tag sources with `VER-2-10-1'.

+

+	* docs/VERSION.TXT: Add entry for version 2.10.1.

+

+	* README, Jamfile (RefDoc), src/base/ftver.rc,

+	builds/windows/vc2010/freetype.vcxproj,

+	builds/windows/vc2010/index.html,

+	builds/windows/visualc/freetype.dsp,

+	builds/windows/visualc/freetype.vcproj,

+	builds/windows/visualc/index.html,

+	builds/windows/visualce/freetype.dsp,

+	builds/windows/visualce/freetype.vcproj,

+	builds/windows/visualce/index.html,

+	builds/wince/vc2005-ce/freetype.vcproj,

+	builds/wince/vc2005-ce/index.html,

+	builds/wince/vc2008-ce/freetype.vcproj,

+	builds/wince/vc2008-ce/index.html: s/2.10.0/2.10.1/, s/2100/2101/.

+

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

+

+	* builds/unix/configure.raw (version_info): Set to 23:1:17.

+	* CMakeLists.txt (VERSION_PATCH): Set to 1.

+

+	* include/freetype/fterrors.h (FT_Error_String): Fix C++ compilation.

+

+2019-06-26  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Fix inequality.

+

+	Reported by Armin Hasitzka.

+

+2019-06-16  Werner Lemberg  <[email protected]>

+

+	* src/tools/apinames.c: Formatting, minor edits.

+

+2019-06-16  Werner Lemberg  <[email protected]>

+

+	[autofit] Disable hinting if no blue zones are available (#56450).

+

+	* src/autofit/afglobal.c (af_face_global_get_metrics): Start again

+	(with dummy hinter module) if no blue zones are present.

+

+	* src/autofit/aflatin.c (af_latin_metrics_init_blues): Change

+	signature to return error code.

+	If no blue zones are found, update `glyph_styles' array to hold

+	AF_STYLE_NONE_DFLT instead of the current style.

+	(af_latin_metrics_init): Return internal error code if no blue zones

+	are found.

+

+2019-06-16  Werner Lemberg  <[email protected]>

+

+	Towards better VMS support.

+

+	More to come.

+

+	* builds/vms/LIBS.OPT_IA64, builds/vms/_LINK.OPT_IA64,

+	builds/vms/vmslib.dat: New files provided by Jouk Jansen

+	<[email protected]>.

+

+	* builds/vms/ftconfig.h: Update, also from Jouk.

+

+2019-06-13  Werner Lemberg  <[email protected]>

+

+	* src/autofit/aflatin.c (af_latin_metrics_init_widths): Minor.

+

+2019-06-13  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Restore the span buffering for direct mode only.

+

+	The buffer size FT_MAX_GRAY_SPANS is set to 10 spans, which should be

+	enough to cover the entire scanline for simple glyphs in most cases:

+	each slightly slanted edge needs up to two spans, plus a filling span

+	in-between.  This is not new, we used to do it before cb4388783cecc.

+

+	* src/smooth/ftgrays.c (gray_TWorker): Add `spans' and `num_spans'.

+	(gray_hline, gray_sweep): Implement the span buffering.

+	(gray_raster_render): Use negative `num_spans' to avoid the direct

+	mode.

+

+2019-06-12  Alexei Podtelezhnikov  <[email protected]>

+

+	* include/freetype/ftmodapi.h (FT_DebugHook_Func): Return error.

+

+	Fix a warning by adding a return value as in `TT_RunIns',

+	which should not be a compatibility issue.

+

+2019-06-11  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttobjs.c (tt_check_trickyness_family): Add `const'.

+

+2019-06-11  Moazin Khatti  <[email protected]>

+

+	[gzip] Add support for `gzip' encoded header.

+

+	* src/gzip/ftgzip.c (FT_Gzip_Uncompress): Modify the the call to

+	`inflateInit2' to enable support for `gzip' encoded headers.

+

+2019-06-10  Alexei Podtelezhnikov  <[email protected]>

+

+	[type1,type42] Use `const' for string literals.

+

+	* include/freetype/internal/psaux.h (PS_Table_FuncsRec): Updated.

+	* include/freetype/internal/t1types.h (T1_EncodingRec): Updated.

+	* src/psaux/psobjs.[ch] (ps_table_add): Updated.

+	* src/type1/t1load.c (T1_Open_Face, parse_encoding): Updated.

+	* src/type42/t42objs.c (T42_Open_Face): Updated.

+	* src/type42/t42parse.c (t42_parse_encoding): Updated.

+

+	* src/cff/cffobjs.c (cff_face_init): Minor.

+

+2019-06-10  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf,pcf] Use `const' for string literals.

+

+	* src/bdf/bdf.h (bdf_property_t): Updated `name'.

+	* src/bdf/bdflib.c (_bdf_list_split,bdf_create_property,

+	_bdf_add_property,_bdf_ato*): Updated.

+	* src/bdf/bdfdrivr.c (bdf_interpret_style): Updated.

+	* src/pcf/pcfread.c (pcf_intrpret_style): Ditto.

+

+2019-06-07  Philip Race  <[email protected]>

+

+	* src/base/ftinit.c (FT_Set_Default_Properties): Fix crash.

+

+	Terminate loop at end of environment.

+

+2019-05-31  Alexei Podtelezhnikov  <[email protected]>

+

+	Solidify VC2005 builds.

+

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

+	declare `_BitScanReverse' intrinsic.

+	* builds/windows/visualc/freetype.vcproj [Debug]: Disable intrinsics.

+

+2019-05-30  Nikhil Ramakrishnan  <[email protected]>

+

+	[sfnt] Separate WOFF sources and headers.

+

+	Move WOFF sources and headers to separate files.

+

+	* include/freetype/internal/wofftypes.h, src/sfnt/sfwoff.c,

+	src/sfnt/sfwoff.h: New files.

+

+	* include/freetype/internal/fttrace.h: Register `sfwoff.c'.

+

+	* include/freetype/internal/internal.h: Define

+	FT_INTERNAL_WOFF_TYPES_H.

+

+	* include/freetype/internal/sfnt.h: Include FT_INTERNAL_WOFF_TYPES_H.

+

+	* include/freetype/internal/tttypes.h: Move out WOFF structures.

+

+	* src/sfnt/rules.mk: Add `sfwoff.c'.

+

+	* src/sfnt/sfnt.c: Include `sfwoff.c'.

+

+	* src/sfnt/sfobjs.c: Include `sfwoff.h', move out WOFF sources.

+

+2019-05-30  Werner Lemberg  <[email protected]>

+

+	[base] Fix `make multi'.

+

+	Reported by Nikhil.

+

+	* src/base/fterrors.c: Include FT_INTERNAL_DEBUG_H.

+

+2019-05-29  Ben Wagner  <[email protected]>

+

+	[truetype] Fix copy-and-paste error (#56409).

+

+	* src/truetype/ttgload.c (load_truetype_glyph): Use correct indices

+	into `unrounded' array for phantom points.

+

+2019-05-29  Werner Lemberg  <[email protected]>

+

+	[truetype] Fix 32bit builds (#56404).

+

+	Patch suggested by Ben Wagner <[email protected]>.

+

+	* src/truetype/ttgxvar.c (FT_fixedToInt, FT_fixedToFdot6): Remove

+	harmful cast to unsigned type.

+

+2019-05-26  Ben Wagner  <[email protected]>

+

+	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Improve accuracy.

+

+2019-05-23  Werner Lemberg  <[email protected]>

+

+	[truetype] Draw glyphs without deltas in variation font (#56374).

+

+	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Always fill

+	`unrounded' array.

+

+2019-05-21  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttinterp.c (opcode_name): Improve mnemonics.

+

+2019-05-16  Werner Lemberg  <[email protected]>

+

+	[truetype] Actually scale varied CVT values.

+

+	Up to now, only the unscaled CVT values were varied; in other words,

+	the `CVAR' data was never used for bytecode hinting.

+

+	* src/truetype/ttgxvar.c (tt_cvt_ready_iterator): New auxiliary

+	function.

+	(tt_face_vary_cvt): Use it to trigger rescaling of CVT values.

+

+2019-05-16  Werner Lemberg  <[email protected]>

+

+	[truetype] Use 26.6 format for storing unscaled CVT values.

+

+	If `CVAR' data is applied to variation fonts, fractional values are

+	possible.

+

+	* include/freetype/internal/tttypes.h (TT_FaceRec): Change type of

+	`cvt' from `FT_Short' to `FT_Int32'.

+

+	* src/truetype/ttgxvar.c (FT_fdot6ToFixed): New macro.

+	(tt_face_vary_cvt): Use it to update code to 26.6 format.

+

+	* src/truetype/ttobjs.c (tt_size_run_prep): Update code to 26.6

+	format.

+

+	* src/truetype/ttpload.c (tt_face_load_cvt): Stora data in 26.6

+	format.

+

+2019-05-16  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgload.c (load_truetype_glyph): Init `unrounded'.

+

+	This fixes linear advance width values for spacing glyphs.  Bug

+	introduced 2019-05-09.

+

+2019-05-16  Werner Lemberg  <[email protected]>

+

+	[truetype] Avoid code duplication.

+

+	* src/truetype/ttobjs.c (tt_size_run_prep): Scale CVT values in this

+	function.

+	(tt_size_ready_bytecode): Updated.

+	* src/truetype/ttgload.c (tt_loader_init): Updated.

+

+2019-05-13  Jouk Jansen  <[email protected]>

+

+	* vms_make.com: Updated.  Handle `bzip2' directory, too.

+

+2019-05-13  Werner Lemberg  <[email protected]>

+

+	* src/psaux/psfont.c (cf2_font_setup): Fix compiler warning.

+

+2019-05-12  Werner Lemberg  <[email protected]>

+

+	[truetype] Doh.  Fix last commit to make it work.

+

+	Very embarassing :-)

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14701

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14705

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14710

+

+	* src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): Move up and add

+	argument; update all callers.

+	(TT_Process_Simple_Glyph): Use it.  The `unrounded' array is active

+	for variation fonts only, thus also enclose related code with

+	`#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT ...  #endif' where

+	necessary.

+	Revert commit a113e5d from 2019-05-09, and don't use `extra_points2'

+	but allocate a temporary array.

+	Speed up the scaling of the `unrounded' array.

+

+	* src/truetype/ttgxvar.c (FT_fixedToInt, FT_FixedToFdot6): Fix type

+	conversions and rounding.  The unsigned type must have more or equal

+	bits to the signed type.

+

+2019-05-09  Werner Lemberg  <[email protected]>

+

+	[truetype] Increase precision of font variation (#54371).

+

+	This patch makes FreeType use font units in 26.6 format internally

+	instead of integers.

+

+	* src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro.

+	(TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font

+	coordinates.

+	* src/truetype/ttgxvar.h: Updated.

+

+	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use

+	`extra_points2' array to temporarily hold unrounded point

+	coordinates; use them to compute scaled coordinates and linear

+	advance width and height.

+	(load_truetype_code): Adjust similarly.

+

+2019-05-09  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Minor.

+

+2019-05-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Faster fractions.

+

+	* src/smooth/ftgrays.c (SUBPIXELS): Replace with...

+	(FRACT): A fractional coordinate macro to use in...

+	(gray_render_line, gray_render_scanline): ... here.

+

+2019-05-07  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/raster/ftraster.c (Draw_Sweep): Unbreak.

+

+2019-05-05  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/raster/ftraster.c: Clean-ups.

+

+2019-05-05  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgxvar.c: More use of `FT_fdot14ToFixed'.

+

+2019-05-04  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/smooth/ftgrays.c (gray_render_line): Small shortcut.

+

+2019-05-04  Werner Lemberg  <[email protected]>

+

+	Various clang 8.0 static analyzer fixes.

+

+	Reported by Sender Ghost <[email protected]>.

+

+	* src/autofit/afcjk.c (af_cjk_hints_compute_edges): Catch a corner

+	case where `edge->first' could be NULL.

+

+	* src/pfr/pfrobjs.c (pfr_slot_load): Remove unnecessary test of

+	`size'.

+

+	* src/raster/ftraster.c (Draw_Sweep): Catch a corner case where

+	`draw_right' might be NULL.

+

+	* src/sfnt/ttmtx.c (tt_face_get_metrics): Fix limit test for

+	`aadvance'.

+	Ensure `abearing' always hold a meaningful result.

+

+	* src/truetype/ttgload.c (load_truetype_glyph): Ensure `subglyph' is

+	not NULL before accessing it.

+	* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Remove unnecessary

+	test of `namedstyle'.

+

+	* src/type42/t42parse.c (t42_parser_done): Ensure

+	`parser->root.funcs.done' is not NULL before accessing it.

+

+2019-05-03  Alexei Podtelezhnikov  <[email protected]>

+

+	Miscellaneous macro updates.

+

+	* src/base/ftoutln.c (SCALED): Updated.

+	* src/smooth/ftgrays.c (SCALED): Ditto.

+	(FLOOR, ROUND, CEILING): Removed.

+	* src/psaux/psfixed.h (cf2_fracToFixed): Updated.

+

+2019-05-02  Alexei Podtelezhnikov  <[email protected]>

+

+	Tweak LCD filtering.

+

+	* src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy):

+	Choose direction from bitmap's pixel_mode.

+	* include/freetype/internal/ftobjs.c (FT_Bitmap_LcdFilterFunc):

+	Updated.

+	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated.

+

+2019-05-02  Werner Lemberg  <[email protected]>

+

+	* vms_make.com: Updated (#56253).

+

+	Remove no longer existing directories (`autohint', `otlayout').

+	Update used base extensions.

+	Activate `autofit' module.

+	Add `gxvalid' module.

+	Update copyright notices.

+

+2019-04-29  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Simplify cubic Bézier flattening.

+

+	The previous implementation is correct but it is too complex.

+	The revised algorithm is based on the fact that each split moves

+	the control points closer to the trisection points on the chord.

+	The corresponding distances are good surrogates for the curve

+	deviation from the straight line.

+

+	This cubic flattening algorithm is somewhat similar to the conic

+	algorithm based the distance from the control point to the middle of

+	the chord.  The cubic distances, however, decrease less predictably

+	but are easy enough to calculate on each step.

+

+	The new algorithm produces slightly larger number of splits, which is

+	compensated by its simplicity.  The overall rendering performance is

+	improved by 1-2%.  The larger number of splits does not necessarily

+	result in higher quality, which stays comparable.

+

+	* src/smooth/ftgrays.c (gray_render_cubic): Replace the split

+	condition.

+

+2019-04-26  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Bithacks and cosmetics.

+

+	* src/smooth/ftgrays.c (gray_record_cell, gray_set_cell, gray_hline,

+	gray_render_conic, gray_convert_glyph_inner): Updated.

+

+2019-04-25  Alexei Podtelezhnikov  <[email protected]>

+

+	Optimize Bézier bisections.

+

+	This change makes bisections faster by 20-30%. When inlined into

+	`gray_render_cubic', this makes the function faster by 10% and is

+	noticeable in the overall rendering performance.

+

+	* src/raster/ftraster.c (Split_Conic, Split_Cubic): Use shifts and

+	refactor.

+	* src/smooth/ftgrays.c (gray_split_conic, gray_split_cubic): Ditto.

+	* src/base/ftstroke.c (ft_conic_split, ft_cubic_split): Ditto.

+	* src/base/ftbbox.c (cubic_peak): Use shifts.

+

+2019-04-23  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/ttcmap.c (tt_cmap12_next): Remove dead code.

+

+	Found by clang 8.0's static analyzer and reported by Sender Ghost

+	<[email protected]>.

+

+2019-04-23  Werner Lemberg  <[email protected]>

+

+	[base] Fix thinko in previous commit.

+

+	* src/base/ftbitmap.c (FT_Bitmap_Blend): Check final width, not

+	target pitch.

+

+	Problem reported by Sender Ghost <[email protected]>.

+

+2019-04-22  Werner Lemberg  <[email protected]>

+

+	* src/base/ftbitmap.c (FT_Bitmap_Blend): Check target pitch.

+

+	Problem reported by Sender Ghost <[email protected]>.

+

+2019-04-22  Werner Lemberg  <[email protected]>

+

+	Fix return value of `FT_Set_Named_Instance' (#56186).

+

+	* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Correctly handle

+	internal return value -1 of `TT_Set_Var_Design'.

+

+2019-04-18  Werner Lemberg  <[email protected]>

+

+	[pcf] Fix handling of undefined glyph (#56067).

+

+	This commit fixes the changes from 2018-07-21, which broke charmap

+	iteration.  We now add the default character as a new glyph with

+	index 0, thus increasing the number of glyphs by one (as before).

+

+	* src/pcf/pcfread.c (pcf_get_metrics): Adjust to new artificial

+	glyph with index 0.

+	Limit number of elements to 65534.

+	(pcf_get_bitmaps): Ditto.

+	Unify two loops into one; this avoids allocation of an intermediate

+	array.

+	(pcf_get_encodings): Don't flip indices but copy glyph metrics of

+	default character to index 0.

+	Also handle invalid default character.

+

+	* docs/CHANGES: Updated.

+

+2019-04-15  Minmin Gong  <[email protected]>

+

+	* CMakeLists.txt: Avoid rewriting of unchanged configuration files.

+

+	Reported as

+

+	  https://savannah.nongnu.org/patch/index.php?9755

+

+2019-04-15  JDG  <[email protected]>

+

+	* src/tools/apinames.c (main): Fix error message.

+

+	Reported as

+

+	  https://savannah.nongnu.org/patch/?9796

+

+2019-04-11  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Fix segfault in direct mode (#56092).

+

+	* src/base/ftoutln.c (FT_Outline_Render): Set missing clip_box for

+	direct mode.

+	* src/smooth/ftgrays.c (gray_raster_render): Use it.

+

+2019-04-06  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/ttcmap.c (tt_get_glyph_name): Pacify compiler (#56061).

+

+	This is for Visual Studio 2019 on ARM.

+

+2019-04-06  Werner Lemberg  <[email protected]>

+

+	For distribution, replace `.tar.bz2' with `.tar.xz' bundles.

+

+	* builds/toplevel.mk (build): Do it.

+

+	* README, docs/CHANGES, docs/release: Updated.

+

+2019-04-06  Antony Lee  <[email protected]>

+

+	Make `glyph_name' parameter to `FT_Get_Name_Index' a `const'.

+

+	* include/freetype/freetype.h (FT_Get_Name_Index),

+	include/freetype/internal/ftobjs.h (FT_Face_GetGlyphNameIndexFunc),

+	include/freetype/internal/services/svgldict.h

+	(FT_GlyphDict_NameIndexFunc), src/base/ftobjs.c (FT_Get_Name_Index),

+	src/cff/cffdrivr.c (cff_get_name_index), src/sfnt/sfdriver.c

+	(sfnt_get_name_index), src/type1/t1driver.c (t1_get_name_index),

+	src/type42/t42drivr.c (t42_get_name_index): Add `const' to second

+	argument.

+

+2019-03-31  Armin Hasitzka  <[email protected]>

+

+	[cff] Fix boundary checks.

+

+	642bc7590c701c8cd35a9f60fa899cfa518b17ff introduced dynamically

+	allocated memory when parsing CFF files with the "old" engine.  Bounds

+	checks have never been updated, however, leading to pointless

+	comparisons of pointers in some cases.  This commit presents a

+	solution for bounds checks in the CFF module with an extended logic

+	for the "old" engine while staying as concise as possible for the

+	"new" one.

+

+	* src/cff/cffparse.h: Introduce the struct `CFF_T2_StringRec' and

+	the additional field `t2_strings' within `CFF_ParserRec'.

+

+	* src/cff/cffparse.c (cff_parser_within_limits): Move all boundary

+	checks into this new function and update the rest of `cffparse.c' to

+	use it.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12137

+

+2019-03-20  Werner Lemberg  <[email protected]>

+

+	[autofit] Fix Mongolian blue zone characters.

+

+	* src/autofit/afblue.dat: Use U+200D (ZERO-WIDTH JOINER) characters

+	to get medial forms for some Mongolian characters.

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

+

+2019-03-19  Werner Lemberg  <[email protected]>

+

+	[autofit] Add support for Mongolian script.

+

+	As a de-facto standard, layouts using this script are constructed

+	horizontally line by line, then the lines are rotated clockwise for

+	vertical display.

+

+	* src/autofit/afblue.dat: Add blue zone data for Mongolian.

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

+

+	* src/autofit/afscript.h: Add Mongolian standard characters.

+

+	* src/autofit/afranges.c, src/autofit/afstyles.h: Add Mongolian

+	data.

+

+2019-03-15  Werner Lemberg  <[email protected]>

+

+	* Version 2.10.0 released.

+	==========================

+

+

+	Tag sources with `VER-2-10-0'.

+

+	* docs/VERSION.TXT: Add entry for version 2.10.0.

+	* docs/CHANGES: Updated.

+

+	* README, Jamfile (RefDoc), src/base/ftver.rc,

+	builds/windows/vc2010/freetype.vcxproj,

+	builds/windows/vc2010/index.html,

+	builds/windows/visualc/freetype.dsp,

+	builds/windows/visualc/freetype.vcproj,

+	builds/windows/visualc/index.html,

+	builds/windows/visualce/freetype.dsp,

+	builds/windows/visualce/freetype.vcproj,

+	builds/windows/visualce/index.html,

+	builds/wince/vc2005-ce/freetype.vcproj,

+	builds/wince/vc2005-ce/index.html,

+	builds/wince/vc2008-ce/freetype.vcproj,

+	builds/wince/vc2008-ce/index.html: s/2.9.1/2.10.0/, s/291/2100/.

+

+	* include/freetype/freetype.h (FREETYPE_MINOR): Set to 10.

+	(FREETYPE_PATCH): Set to 0.

+

+	* builds/unix/configure.raw (version_info): Set to 23:0:17.

+	* CMakeLists.txt (VERSION_MINOR): Set to 10.

+	(VERSION_PATCH): Set to 0.

+

+	* builds/toplevel.mk (version, winversion): Since the minor version

+	number has two digits now, never omit the patch number.  We would

+	get ambiguous zip file names otherwise.

+	(dist): Remove remnants of `docmaker' tool.

+	(do-dist): Remove unused intermediate files.

+

+	* src/cff/cffparse.c (destrict_c2s_item): Guard function with

+	CFF_CONFIG_OPTION_OLD_ENGINE macro.

+

+2019-03-07  Andrei Alexeyev  <[email protected]>

+            Werner Lemberg  <[email protected]>

+

+	Fix invalid function pointer casts.

+

+	This change should allow Freetype to work on WASM/Emscripten without

+	needing `-s EMULATE_FUNCTION_POINTER_CASTS=1'.

+

+	* src/autofit/afdummy.c (af_dummy_hints_apply): Fix signature.

+

+	* src/cid/cidload.c (cid_parse_font_matrix, parse_fd_array,

+	parse_expansion_factor, parse_font_name): Return `void', not

+	`FT_Error'.

+

+	* include/freetype/internal/ftobjs.h (FT_CMap_CharVarIsDefaultFunc):

+	Fix signature.

+

+2019-03-05  Werner Lemberg  <[email protected]>

+

+	[base] Handle numeric overflow (#55827).

+

+	* src/base/ftglyph.c (FT_Glyph_Get_CBox): Use `FT_PIX_CEIL_LONG'.

+

+2019-03-05  Sebastian Rasmussen  <[email protected]>

+

+	[psaux] Fix use of uninitialized memory (#55832).

+

+	* src/psaux/psintrp.c (cf2_interpT2CharString): The call to

+	`cf2_arrstack_setCount' may fail because the allocator ran out of

+	memory.  When this happens the stack is still written to before the

+	error condition is checked.  This means that FreeType writes outside

+	of allocated memory.  This commit moves the error check prior to the

+	stack assignment, hence the function now properly returns with an

+	error condition.

+

+2019-02-23  Werner Lemberg  <[email protected]>

+

+	* src/base/ftbitmap.c (FT_Bitmap_Blend): No fractional offsets.

+

+	The function only provided a framework without an actual

+	implementation, which this commit removes.

+

+2019-02-23  Werner Lemberg  <[email protected]>

+

+	* src/tools/update-copyright-year: Insert `(C)'.

+

+2019-02-21  Armin Hasitzka  <[email protected]>

+

+	[truetype] Mask numeric overflows.

+

+	* src/truetype/ttinterp.c (Move_CVT, Move_CVT_Stretched, Ins_MIRP):

+	Mask numeric overflows.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11681

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11734

+

+2019-02-21  Armin Hasitzka  <[email protected]>

+

+	[psaux] Mask numeric overflow.

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Mask numeric

+	overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13041

+

+2019-02-16  Wink Saville  <[email protected]>

+

+	* src/autofit/afwarp.h (af_warper_compute): Fix declaration.

+

+2019-02-02  Nikolaus Waxweiler  <[email protected]>

+

+	[truetype] Apply MVAR hasc, hdsc and hlgp metrics to current FT_Face metrics.

+

+	Instead of setting typo or win metrics as the new `FT_Face' metrics

+	indiscriminately, apply only typo deltas to the currently active

+	`FT_Face' metrics.  This prevents line height differences when the

+	default outlines were used as the regular face and instances for

+	everything else, for example.

+

+	* src/truetype/ttgxvar.c (tt_apply_mvar): Implement.

+

+2019-02-02  Nikolaus Waxweiler  <[email protected]>

+

+	[sfnt] Use typo metrics if OS/2 fsSelection USE_TYPO_METRICS bit is set.

+

+	If the `OS/2' table exists and `fsSelection' bit 7

+	(USE_TYPO_METRICS) is set, use the `sTypo*' set of values to compute

+	the `FT_Face's ascender, descender, and height.  Otherwise, fall

+	back to old behavior.

+

+	* src/sfnt/sfobjs.c (sfnt_load_face): Implement.

+

+2019-01-18  John Tytgat  <[email protected]>

+

+	[sfnt] Handle TT fonts having two PostScript font names (#55471).

+

+	* src/sfnt/sfdriver.c (sfnt_get_name_id): Prefer English over any

+	other language found for PostScript font names.

+

+2019-01-08  Chris Liddell <[email protected]>

+

+	[psaux] Fix closepath (#55414).

+

+	All of the Type 1 path building is done with code common to the

+	revised CFF engine, with the exception of closepath, which was still

+	calling ps_builder_close_contour(), thus previously cached segments

+	were not always written to the path, and glyph corruption, or even

+	invalid outlines were possible.

+

+	* src/psauc/psinterp.c (cf2_interpT2CharString) <cf2_cmdCLOSEPATH>:

+	Switch to calling `cf2_glyphpath_closeOpenPath'.

+

+2018-12-29  Werner Lemberg  <[email protected]>

+

+	* src/autofit/aflatin2.c: Some fixes from `aflatin.c' (#55310).

+

+2018-12-25  Werner Lemberg  <[email protected]>

+

+	* src/psaux/cffdecode.c (cff_operaor_seac): Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11915

+

+2018-12-12  Werner Lemberg  <[email protected]>

+

+	[gxvalid] Fix compiler warnings.

+

+	* src/gxvalid/gxvjust.c (gxv_just_check_max_gid),

+	src/gxvalid/gxvmort.c (gxv_mort_coverage_validate): Use `FT_UNUSED'.

+

+2018-12-11  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgload.c (TT_Hint_Glyph): Remove useless test.

+

+	`control_len' only gets its value from `n_ins' (and vice versa),

+	which is always read as `unsigned short' and thus can't be larger

+	than 0xFFFF.

+

+2018-12-04  Werner Lemberg  <[email protected]>

+

+	[bdf] Ignore data after `ENDFONT'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10798

+

+	* src/bdf/bdflib.c (_bdf_parse_end): New function.

+	(_bdf_parse_glyphs): Switch to `_bdf_parse_end' after `ENDFONT' has

+	been encountered.

+

+2018-12-02  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/windows/visualc/freetype.dsp: Dust off.

+

+2018-11-27  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/windows/vc2010/freetype.vcxproj: Simplify.

+

+2018-11-27  Chris Liddell  <[email protected]>

+

+	[type1,cff] Add FT_{Set,Get}_MM_WeightVector API calls.

+

+	For multiple master fonts, common usage (in Postscript) is to modify

+	the WeightVector of an existing font instance, this addition

+	supports that use.

+

+	* include/freetype/ftmm.h, src/base/ftmm.c (FT_Set_MM_WeightVector,

+	FT_Get_MM_WeightVector): New API functions.

+

+	* include/freetype/internalservices/svmm.h

+	(FT_Set_MM_WeightVector_Func, FT_Get_MM_WeightVector_Func): New

+	function types.

+	(MultiMasters): Add `set_mm_weightvector' and `get_mm_weightvector'

+	members.

+	(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.

+

+	* src/cffcffdrivr.c (cff_set_mm_weightvector,

+	cff_get_mm_weightvector): New functions.

+	(cff_service_multi_masters): Register them.

+

+	* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.

+	This driver doesn't use the new interface.

+

+	* src/type1/t1load.c (T1_Set_MM_WeightVector,

+	T1_Get_MM_WeightVector): New functions.

+	* src/type1/t1driver.c (t1_service_multi_masters): Register them.

+	* src/type1/t1load.h: Updated.

+

+2018-11-27  Ben Wagner  <[email protected]>

+

+	[cff] Fix compiler warning (#55105).

+

+	* src/cff/cffparse.c (cff_parser_run): Guard label only used if

+	CFF_CONFIG_OPTION_OLD_ENGINE is active.

+

+2018-11-27  Ben Wagner  <[email protected]>

+

+	[truetype] Fix numeric overflow (#55103).

+

+	* src/truetype/ttgload.c (compute_glyph_metrics): Use `SUB_LONG'.

+

+2018-11-25  Alexei Podtelezhnikov  <[email protected]>

+

+	[builds] Belated DLL support with vc2002-vc2008.

+

+	The solution and project files should be automatically upgraded for

+	the approriate Visual C++ version.

+

+	* builds/windows/visualc/freetype.{sln,vcproj}: Major upgrades.

+	* builds/windows/visualc/index.html: Document the change.

+	* builds/windows/vc2005, builds/windows/vc2008: Removed as redundant.

+

+2018-11-22  Armin Hasitzka  <[email protected]>

+

+	* src/cff/cffparse.c: Please the compiler.

+

+2018-11-22  Armin Hasitzka  <[email protected]>

+

+	[cff] Fix memory overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9869

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10869

+

+	* src/cff/cffparse.c (destruct_t2s_item, cff_parser_run): Store

+	evaluated T2 charstrings in separately allocated memory.

+

+2018-11-18  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/windows/{visualc,vc2005,vc2008}/freetype.vcproj: Fix it.

+

+2018-11-10  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Placeholder only for library-enabled LCD filtering.

+

+	* src/smooth/ftsmooth.c (ft_smooth_init): Add disabled

+	`FT_Library_SetLcdFilter' call.

+

+2018-11-09  Young Xiao  <[email protected]>

+

+	[psaux] Add safety guard (#54985).

+

+	* src/psaux/psobjs.c (cff_builder_close_contour): Do it.

+

+2018-11-08  Alexei Podtelezhnikov  <[email protected]>

+

+	* builds/unix/configure.raw: Require `windows.h' for windres.

+

+2018-11-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[ftstroke] Fix unpredictable failures (#54986).

+

+	* src/base/ftstroke.c (ft_sroke_border_lineto): Fix lineto check.

+

+2018-11-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[ftstroke] Fix unpredictable failures (#54976).

+

+	* src/base/ftstroke.c (ft_sroke_border_close): Set the start tags.

+

+2018-11-07  Ben Wagner  <[email protected]>

+

+	[truetype] Fix VF check from 2018-09-12 (#54973).

+

+	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Use correct

+	offsets for estimates.

+

+2018-11-06  Werner Lemberg  <[email protected]>

+

+	[pshinter] Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11242

+

+	* src/pshinter/pshrec.c (ps_dimension_add_t1stem): Implement it.

+

+2018-11-06  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix timeout in old CFF engine.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11260

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

+	<cff_op_sqrt> [CFF_CONFIG_OPTION_OLD_ENGINE]: Fix potential endless

+	loop.

+

+2018-11-04  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttgxvar.c: Use enum definitions.

+

+2018-11-03  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Adjust condition.

+

+2018-11-03  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttgxvar.c (ft_var_apply_tuple): Tracing tweaks.

+

+2018-11-03  Alexei Podtelezhnikov  <[email protected]>

+

+	Revert due to specs: [truetype] Speed up variation IUP.

+

+2018-11-02  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttgxvar.c (ft_var_get_item_delta): Fixed logic.

+

+	Reported and tested by Behdad.

+

+2018-11-02  Shailesh Mistry  <[email protected]>

+

+	[autofit] Prevent SEGV.

+

+	See

+

+	  https://bugs.ghostscript.com/show_bug.cgi?id=697545

+

+	for more details on how the bug was found.

+

+	* src/autofit/afloader.c (af_loader_load_glyph): Propagate error

+	code.

+

+2018-10-31  Alexei Podtelezhnikov <[email protected]>

+

+	[truetype] Speed up variation IUP.

+

+	* src/truetype/ttgxvar.c (tt_delta_interpolate): Separate trivial

+	snapping to the same position from true interpolation.

+

+2018-10-31  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/type1/t1load.c (t1_set_mm_blend): Optimized.

+

+2018-10-31  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/truetype/ttgxvar.c (ft_var_get_item_delta): Optimized.

+

+2018-10-29  Werner Lemberg  <[email protected]>

+

+	[base] Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11080

+

+	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Use `MUL_LONG'.

+

+2018-10-29  Werner Lemberg  <[email protected]>

+

+	[cff] Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10988

+

+	* src/cff/cffparse.c (cff_parser_run)

+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use `NEG_LONG'.

+

+2018-10-27  Alexei Podtelezhnikov  <[email protected]>

+

+	[sfnt] Make `head' timestamps unsigned.

+

+	It's been more than 2^31 seconds since 1904.

+

+	* include/freetype/tttables.h (TT_Header): Change field types.

+	* src/sfnt/ttload.c (tt_face_load_generic_header): Updated.

+

+2018-10-27  Alexei Podtelezhnikov  <[email protected]>

+

+	Revert: Align FreeType with standard C memory management.

+

+2018-10-27  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix numeric overflow.

+

+	Triggered by

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11157

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_blend>

+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Fix integer overflow.

+

+2018-10-20  Werner Lemberg  <[email protected]>

+

+	Avoid endless loop while tracing (#54858).

+

+	* src/type1/t1load.c (parse_buildchar): Guard tracing stuff with

+	FT_DEBUG_LEVEL_TRACE.

+

+2018-10-17  David Demelier  <[email protected]>

+

+	* CMakeLists.txt: Specify `RUNTIME DESTINATION'.

+

+	This is needed for DLL builds.

+

+2018-10-07  Werner Lemberg  <[email protected]>

+

+	A missing Unicode cmap is not a fatal error.

+

+	This is a follow-up to the previous commit.

+

+	* src/cff/cffobjs.c (cff_face_init), src/sfnt/sfobjs.c

+	(sfnt_load_face), src/type1/t1objs.c (T1_Face_Init),

+	src/type42/t42objs.c (T42_Face_Init): Implement it.

+

+2018-10-07  Werner Lemberg  <[email protected]>

+

+	Fix handling of FT_CONFIG_OPTION_ADOBE_GLYPH_LIST (#54794).

+

+	* src/cff/cffcmap.c (cff_cmap_unicode_init), src/psaux/t1cmap.c

+	(t1_cmap_unicode_init), src/sfnt/ttcmap.c (tt_cmap_unicode_init):

+	Check `unicodes_init' field.

+

+2018-10-03  Werner Lemberg  <[email protected]>

+

+	[ftgrays] Fix typo in stand-alone mode (#54771).

+

+	* src/smooth/ftgrays.c (FT_THROW) [STANDALONE_ &&

+	FT_DEBUG_LEVEL_TRACE]: Fix call to `FT_ERR_CAT'.

+

+2018-10-02  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix segfault.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10768

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

+	<cff_op_callothersubr> [CFF_CONFIG_OPTION_OLD_ENGINE]: Check

+	argument.

+

+2018-10-02  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10740

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>

+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use NEG_INT.

+

+2018-10-02  Werner Lemberg  <[email protected]>

+

+	[pshinter] Handle numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10550

+

+	* src/pshinter/pshglob.c (psh_blues_snap_stem): Mask numeric

+	overflow.

+

+2018-09-27  Alexei Podtelezhnikov  <[email protected]>

+

+	Align FreeType with standard C memory management.

+

+	* include/freetype/ftsystem.h: Include FT_TYPES_H.

+	(*FT_Alloc_Func, *FT_Realloc_Func): Use size_t for the size arguments.

+	* src/raster/ftmisc.h: Ditto.

+

+	* builds/amiga/src/base/ftsystem.c, builds/unix/ftsystem.c,

+	* builds/vms/ftsystem.c, src/base/ftsystem.c (ft_alloc, ft_realloc):

+	Use size_t for the size arguments.

+

+	* src/base/ftdbgmem.c (ft_mem_debug_alloc, ft_mem_debug_realloc): Use

+	FT_Offset, aka size_t, for the size arguments.

+

+2018-09-25  Werner Lemberg  <[email protected]>

+

+	Fix handling of `FT_Bool'.

+

+	Before this commit we had code like

+

+	  (FT_Bool)( globals->glyph_styles[gindex] & 0x8000)

+

+	Since `FT_Bool' is defined to be an `unsigned char', the code

+	evaluated to something like

+

+	  (unsigned char)( 0x8532 & 0x8000)

+

+	which in turn expanded to

+

+	  (unsigned char)( 0x8000)

+

+	and finally yielded 0x00 – i.e., false – not as expected.

+

+	Problem reported and analyzed by Tony Smith <[email protected]>.

+

+	* include/freetype/fttypes.h (FT_BOOL): Add a comparison against

+	zero so that we always have a Boolean expression.

+

+	*/*: Replace castings to `FT_Bool' with calls to `FT_BOOL' where

+	possible.

+

+2018-09-23  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf] Speed up charmap access.

+

+	This makes FT_Get_Char_Index and FT_Get_Next_Char 4-5 times faster.

+

+	* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Help binary search

+	with continuous prediction.

+

+2018-09-22  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Another tweak.

+

+	This one should be clearer. When the rounded monochrome bbox collapses

+	we add a pixel that covers most if not all original cbox.

+

+2018-09-21  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Further tweak.

+

+2018-09-21  Ben Wagner  <[email protected]>

+

+	Improve auto-hinter handling of bitmap fonts (#54681).

+

+	For bitmap fonts, `FT_Load_Glyph' should either return an error or

+	not set the format to `FT_GLYPH_FORMAT_OUTLINE'.  However, in this

+	case `FT_Load_Glyph' calls into the auto-hinter which calls back

+	into `FT_Load_Glyph' with `FT_LOAD_NO_SCALE' in the flags, which

+	marks the glyph as `FT_GLYPH_FORMAT_OUTLINE' with an empty path

+	(even though it doesn't have any path).  It appears that the

+	auto-hinter should not be called when the face doesn't have

+	outlines.  The current test for using the auto-hinter in

+	`FT_Load_Glyph' checks whether the driver supports scalable

+	outlines, but not if the face supports scalable outlines.

+

+	* src/base/ftobjs.c (FT_Load_Glyph): Directly check whether we have

+	scalable outlines.

+

+2018-09-21  Werner Lemberg  <[email protected]>

+

+	[raster] Fix disappearing vertical lines (#54589).

+

+	* src/raster/ftraster.c (Vertical_Sweep_Span): Handle special case

+	where both left and right outline exactly pass pixel centers.

+

+2018-09-20  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bimap): Tiny rounding tweak.

+

+	This adds pixels in case a contour goes through the center

+	and they need to be turned on in the b/w rasterizer.

+

+2018-09-20  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf] Replace charmap implementation.

+

+	PCF comes with charmap lookup table, aka PCF encodings.  Using it

+	directly makes FT_Get_Char_Index and FT_Get_Next_Char 4-5 times

+	faster than the original BDF-like binary searches.

+

+	* src/pcf/pcf.h (PCF_EncodingRec): Removed.

+	(PCF_FaceRec): Remove `nencodings' and `encodings'.

+	* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Replaced.

+	* src/pcf/pcfread.c (pcf_get_encodings): Store data differently.

+

+2018-09-20  Werner Lemberg  <[email protected]>

+

+	[base] Remove unused function `FT_GlyphLoader_CopyPoints'.

+

+	* include/freetype/internal/ftgloadr.h, src/base/ftgloadr.c

+	(FT_GlyphLoader_CopyPoints): Do it.

+

+2018-09-19  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf] Prepare to replace charmap implementation.

+

+	* src/pcf/pcf.h (PCF_FaceRec): Updated to include...

+	(PCF_EncRec): ... this new structure to store charmap geometry.

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Store charmap geometry.

+

+2018-09-18  Alexei Podtelezhnikov  <[email protected]>

+

+	Remove unused fields.

+

+	* src/pcf.h (PCF_FaceRec): Remove `charmap' and `charmap_handle'.

+	* src/bdfdrvr.h (BDF_FaceRec): Ditto.

+	* src/winfonts/winfnt.h (FNT_FaceRec): Ditto.

+

+2018-09-17  Werner Lemberg  <[email protected]>

+

+	[pshinter] Handle numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10396

+

+	* src/pshinter/pshglob.c: Include FT_INTERNAL_CALC_H.

+	(psh_blues_snap_stem): Mask numeric overflow.

+

+2018-09-13  Werner Lemberg  <[email protected]>

+

+	[truetype] Some fixes for VF checks.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10317

+

+	* src/truetype/ttgxvar.c (ft_var_load_gvar): Properly exit memory

+	frame if we have invalid glyph variation data offsets.

+	(tt_face_vary_cvt): Protect against missing `tuplecoords' array.

+	Fix typo.

+

+2018-09-13  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Fix last commit.

+

+2018-09-13  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/sfdriver.c (sfnt_get_var_ps_name): Check `result'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10316

+

+2018-09-12  John Tytgat  <[email protected]>

+

+	[sfnt] Better PS name handling (#54629).

+

+	* src/sfnt/sfdriver (IS_WIN, IS_APPLE): Omit language ID checks.

+	(get_win_string, get_apple_string): Return NULL when the PostScript

+	font name characters is not according to specification.

+	(get_win_string): Make trace output work if the high byte if

+	non-zero.

+	(sfnt_get_var_ps_name, sfnt_get_ps_name): Previously we preferred

+	Win PS name (when there is also an Apple PS name); change this into

+	a fallback to Apple PS name in case the Win PS name is invalid.

+

+2018-09-12  Werner Lemberg  <[email protected]>

+

+	[truetype] Improve VF check.

+

+	Triggered by

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10255

+

+	* src/truetype/ttgxvar.c (ft_var_load_gvar): Use better limit check

+	for `tupleCount'.

+

+2018-09-12  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgxvar.c (ft_var_load_gvar): Check `glyphoffsets'.

+

+2018-09-10  Armin Hasitzka  <[email protected]>

+

+	* src/pshinter/pshrec.c (t2_hints_stems): Mask numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10215

+

+2018-09-09  Ben Wagner  <[email protected]>

+

+	* builds/freetype.mk (refdoc-venv): Ensure python version (#54631).

+

+2018-09-07  Werner Lemberg  <[email protected]>

+

+	[truetype] Fix assertion failure.

+

+	Triggered by

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10212

+

+	* src/truetype/ttgload.c (load_truetype_glyph): Reintroduce

+	`opened_frame' (removed in a change from 2018-08-26) to handle

+	deallocation of the second frame.

+

+2018-09-05  Werner Lemberg  <[email protected]>

+

+	Synchronize `ftdebug.c' files.

+

+	* builds/amiga/src/base/ftdebug.c, builds/wince/ftdebug.c,

+	builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c'.

+

+2018-09-05  Nikhil Ramakrishnan  <[email protected]>

+

+	Add documentation guidelines file.

+

+	* docs/DOCGUIDE: New file.

+

+2018-09-04  Werner Lemberg  <[email protected]>

+

+	* devel/ftoption.h: Synchronize with master `ftoption.h'.

+

+2018-09-03  Nikhil Ramakrishnan  <[email protected]>

+

+	[docwriter] Don't break code snippets accross lines.

+

+	Reported as

+

+	  https://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00124.html

+

+	* docs/reference/markdown/stylesheets/extra.css (.md-typeset code):

+	Add rule `white-space'.

+

+2018-09-03  Werner Lemberg  <[email protected]>

+

+	*/*: s/PSNames/psnames/.

+

+	Only tracing messages are affected.

+

+2018-09-03  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix heap buffer overflow in CPAL handling.

+

+	* src/sfnt/ttcpal.c (tt_face_palette_set): Fix boundary test.

+	(tt_face_load_cpal): Updated.

+

+2018-09-01  Werner Lemberg  <[email protected]>

+

+	Remove `FT_Outline_{New,Done}_Internal'.

+

+	These public API functions(!) were always undocumented and have

+	escaped all clean-up efforts until now.

+

+	* include/freetype/ftoutln.h (FT_Outline_New_Internal,

+	FT_Outline_Done_Internal): Removed.

+

+	* src/base/ftoutln.h (FT_Outline_New_Internal,

+	FT_Outline_Done_Internal): Merge into...

+	(FT_Outline_New, FT_Outline_Done): ... these functions.

+

+	* docs/README: Updated.

+

+2018-08-30  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Check glyph format.

+

+2018-08-31  Armin Hasitzka  <[email protected]>

+

+	[errors] Refine the macro logic surrounding `FT_Error_String'.

+

+	* include/freetype/fterrors.h (FT_INCLUDE_ERR_PROTOS,

+	FT_ERR_PROTOS_DEFINED): Undefine `FT_INCLUDE_ERR_PROTOS' after

+	checking it and introduce a new macro that takes proper care of

+	multiple-inclusion protection.

+

+2018-08-31  Werner Lemberg  <[email protected]>

+

+	* src/base/ftdebug.c (FT_Throw): Restore missing `FT_UNUSED' calls.

+

+2018-08-31  Werner Lemberg  <[email protected]>

+

+	* src/base/ftdebug.c (FT_Throw): Reduce chattiness.

+

+2018-08-31  Werner Lemberg  <[email protected]>

+

+	* src/autofit/afhints.c (af_glyph_hints_reload): Add initialization.

+

+2018-08-30  Alexei Podtelezhnikov  <[email protected]>

+

+	Consolidate bitmap presetting and size assessment.

+

+	* include/freetype/internal/ftobjs.h (ft_glyphslot_preset_bitmap):

+	Change return type.

+	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Return the bitmap

+	size assessment.

+

+	* src/raster/ftrend1.c (ft_raster1_render): Use it to refuse the

+	rendering of enourmous or far-fetched outlines.

+	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.

+

+2018-08-30  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Correct mono.

+

+2018-08-30  Armin Hasitzka  <[email protected]>

+

+	[errors] Introduce a macro to control `FT_Error_String'.

+

+	* devel/ftoption.h (FT_CONFIG_OPTION_ERROR_STRINGS),

+	include/freetype/config/ftoption.h (FT_CONFIG_OPTION_ERROR_STRINGS):

+	New macro.

+

+2018-08-30  Armin Hasitzka  <[email protected]>

+

+	[errors] Introduce `FT_Error_String'.

+

+	* include/freetype/fterrors.h (FT_Error_String),

+	src/base/fterrors.c (FT_Error_String): Implement `FT_Error_String'.

+

+	* src/base/ftbase.c, src/base/Jamfile (_source),

+	src/base/rules.mk (BASE_SRC): Add `fterrors.c' to the build logic.

+

+	* src/base/ftdebug.c (FT_Throw): Use `FT_Error_String'.

+

+2018-08-30  Werner Lemberg  <[email protected]>

+

+	[autofit] Trace `before' and `after' edges of strong points.

+

+	* src/autofit/afhints.h (AF_PointRec) [FT_DEBUG_AUTOFIT]: New arrays

+	`before' and `after'.

+

+	* src/autofit/afhints.c (af_get_strong_edge_index): New auxiliary

+	function.

+	(af_glyph_hints_dump_points): Trace `before' and `after' edges.

+	(af_glyph_hints_align_strong_points) [FT_DEBUG_AUTOFIT]: Set

+	`before' and `after' information.

+

+2018-08-30  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] Overflow-resistant bitmap presetting.

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Implement it.

+

+2018-08-29  Armin Hasitzka  <[email protected]>

+

+	Fix numeric overflows.

+

+	* src/pshint/pshalgo.c (psh_hint_align, psh_hint_align_light,

+	psh_hint_table_find_strong_points): Fix numeric overflows.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10083

+

+2018-08-29  Werner Lemberg  <[email protected]>

+

+	[cff] Fix handling of `roll' op in old engine.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10080

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>

+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use modulo for loop count, as

+	documented in the specification.

+

+2018-08-26  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttobjs.c (tt_size_read_bytecode): Trace CVT values.

+

+2018-08-26  Nikhil Ramakrishnan  <[email protected]>

+

+	* configure: Copy assets required by docwriter.

+

+	Copy directory `docs/reference/markdown' when FreeType is compiled in a

+	different directory.

+

+	Fixes `make refdoc' if builddir != srcdir.

+

+	Reported as

+

+	  https://lists.nongnu.org/archive/html/freetype-devel/2018-08/msg00083.html

+

+2018-08-26  Werner Lemberg  <[email protected]>

+

+	* src/pshint/pshalgo.c (psh_hint_overlap): Fix numeric overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10057

+

+2018-08-26  Werner Lemberg  <[email protected]>

+

+	Minor tracing adjustments.

+

+	* src/base/ftstream.c (FT_Stream_EnterFrame, FT_Stream_ExitFrame):

+	Trace.

+

+	* src/truetype/ttgload.c (TT_Access_Glyph_Frame): Remove tracing.

+

+2018-08-26  Werner Lemberg  <[email protected]>

+

+	[truetype] Avoid nested frames.

+

+	Triggered by

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10054

+

+	* src/truetype/ttgload.c (load_truetype_glyph): Don't use variable

+	`opened_frame' to trace whether a frame must be closed at the end of

+	function: This fails because `TT_Vary_Apply_Glyph_Deltas' (which

+	gets called for space glyphs) uses a frame by itself.  Instead,

+	close the frame after loading the header, then use another frame for

+	the remaining part of the glyph later on.

+

+	Also avoid calling `tt_get_metrics' twice under some circumstances.

+

+2018-08-26  Werner Lemberg  <[email protected]>

+

+	Various minor clean-ups.

+

+	* src/base/ftapi.c: Remove.  Unused.

+	* src/base/Jamfile (_sources): Updated.

+

+	* src/base/ftstream.c (FT_Stream_ReleaseFrame): Remove redundant

+	code.

+

+2018-08-25  Nikhil Ramakrishnan  <[email protected]>

+

+	Convert documentation markup to Markdown.

+

+	It is the result of a GSoC 2018 project; this separate ChangeLog

+	commit covers the last four commits

+

+	  ae5d1a4cec37557f31aec270332cfe886a62f9a0

+	  53c69ce04faed3dcc68ca0f54cb8d703d8babf69

+	  195728d5ba38f34fb2c2c20807c01656f2f59b66

+	  c962db28ea59225f0105c03d907d4a9b71765687

+

+	* docs/reference/markdown/images/favico.ico,

+	docs/reference/markdown/javascripts/extra.js,

+	docs/reference/markdown/stylesheets/extra.css: New files.

+

+	* docs/reference/.gitignore, docs/reference/README: Updated.

+

+	* src/tools/docmaker/*: Removed.  It has been replaced with

+	`docwriter', a python package available at

+

+	  https://pypi.org/project/docwriter/

+

+	* Jamfile: Updated.

+	* builds/ansi/ansi-def.mk, builds/beos/beos-def.mk,

+	builds/dos/dos-def.mk, builds/os2/os2-def.mk (BIN),

+	builds/unix/unixddef.mk, builds/windows/win32-def.mk: New variable.

+

+	* builds/unix/configure.raw: Check for `python' and `pip'.

+	If not present, warn that `make refdoc' will fail.

+	* builds/unix/unix-def.in (PYTHON, PIP, BIN): New variables.

+

+	* builds/freetype.mk (PYTHON, PIP, VENV_NAME, VENV_DIR, ENV_PYTHON,

+	ENV_PIP): New variables.

+	(refdoc): Updated.

+	(refdoc-venv): New target.

+	(.PHONY): Updated.

+

+2018-08-23  Werner Lemberg  <[email protected]>

+

+	Add macros for handling over-/underflowing `FT_Int64' values.

+

+	* include/freetype/internal/ftcalc.h (ADD_INT64, SUB_INT64,

+	MUL_INT64, DIV_INT64) [FT_LONG64]: New macros.

+

+	* src/base/ftcalc.c (ft_corner_orientation) [FT_LONG64]: Use

+	`SUB_INT64' and `MUL_INT64'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10028

+

+2018-08-22  Werner Lemberg  <[email protected]>

+

+	[truetype] Improve legibility of `glyf' parsing.

+

+	* src/truetype/ttgload.c (ON_CURVE_POINT, X_SHORT_VECTOR,

+	Y_SHORT_VECTOR, REPEAT_FLAG, X_POSITIVE, SAME_X, Y_POSITIVE, SAME_Y,

+	OVERLAP_SIMPLE): New macros.

+	(TT_Load_Simple_Glyph): Use new macros to make code more readable.

+	Remove useless adjustment of `outline->tags' elements.

+

+2018-08-21  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/ttcpal.c (tt_face_load_cpal): Add missing safety check.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9981

+

+2018-08-18  Werner Lemberg  <[email protected]>

+

+	[psaux] Avoid slow PS font parsing in case of error.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9955

+

+	* src/psaux/psobjs.c (ps_parser_to_bytes): Set `parser->cursor' even

+	in case of error to avoid potential re-scanning.

+

+2018-08-18  Werner Lemberg  <[email protected]>

+

+	[cff] Fix heap buffer overflow in old engine.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9967

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

+	<cff_op_blend> [CFF_CONFIG_OPTION_OLD_ENGINE]: `num_designs' must be

+	non-zero.

+

+2018-08-16  Young Xiao  <[email protected]>

+

+	* builds/mac/ftmac.c (parse_fond): Fix buffer overrun.

+

+	Reported as bug #54515, duplicate of #43540.

+

+2018-08-16  Werner Lemberg  <[email protected]>

+

+	* builds/*/ftsystem.c (FT_COMPONENT): Updated also.

+

+2018-08-15  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf] Don't track duplicate encodings.

+

+	There is no harm except some umbiguity in broken fonts with duplicate

+	encodings.

+

+	* src/bdf/bdflib.c (_bdf_parse_glyphs): Remove duplicate tracking.

+	(_bdf_parse_t): Remove large `have' bitfield.

+

+2018-08-15  Werner Lemberg  <[email protected]>

+

+	Don't use `trace_' prefix for FT_COMPONENT arguments.

+

+	* include/freetype/internal/ftdebug.h (FT_TRACE_COMP,

+	FT_TRACE_COMP_): New auxiliary macros to add `trace_' prefix.

+	(FT_TRACE): Use `FT_TRACE_COMP'.

+

+	*/* (FT_COMPONENT): Updated.

+

+2018-08-14  Werner Lemberg  <[email protected]>

+

+	Use formatting string in FT_TRACEX calls for non-simple arguments.

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

+	<cff_op_hstem, cff_op_hintmask, cff_op_hlineto, cff_op_vhcurveto>:

+	Do it.

+

+	* src/psaux/pshints.c (cf2_hintmap_build): Ditto.

+

+	* src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_cmdHSTEM,

+	cf2_cmdVSTEM, cf2_cmdHLINETO, cf2_cmdRRCURVETO, cf2_cmdCALLSUBR,

+	cf2_escHSTEM3, cf2_cmdHINTMASK, cf2_cmdHVCURVETO>: Ditto.

+

+	* src/truetype/ttinterp.c (TT_RunIns): Ditto.

+

+2018-08-14  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf] Remove unused fields.

+

+	* src/bdf/bdf.h (bdf_font_t): Remove `nmod', `umod', and `modified',

+	which were set but never used.

+	* src/bdf/bdflib.c (_bdf_parse_{glyphs,properties}, bdf_load_font):

+	Updated accordingly.

+

+2018-08-14  Werner Lemberg  <[email protected]>

+

+	[cff] Fix another segv in old engine.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9872

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Disallow invalid T1 opcodes in

+	dictionaries.

+

+2018-08-14  Werner Lemberg  <[email protected]>

+

+	[cff] Fix missing error handling.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9865

+

+	* src/psaux/cffparse.c (cff_parser_run)

+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Don't ignore return value of

+	`parse_charstrings_old'.

+

+2018-08-14  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf] Remove unused overflow storage.

+

+	* src/bdf/bdf.h (bdf_glyphlist_t): Remove this type.

+	(bdf_font_t): Remove `overflow' field.

+	* src/bdf/bdflib.c (bdf_free_font): Remove `overflow' freeing.

+

+2018-08-14  Werner Lemberg  <[email protected]>

+

+	[cff] Fix segv in old engine.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9864

+

+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)

+	<cff_op_random> [CFF_CONFIG_OPTION_OLD_ENGINE]: Use top dict's

+	`random' field directly if parsing dictionaries.

+

+2018-08-13  Alexei Podtelezhnikov  <[email protected]>

+

+	[bdf] Use unsigned types.

+

+	* src/bdf/bdf.h (bdf_glyph_t): Unsign `encoding'.

+	(bdf_font_t): Unsign `default_char'.

+	* src/bdf/bdfdrivr.h (BDF_encoding_el): Unsign `enc'.

+

+	* src/bdf/bdflib.c (_bdf_add_property, _bdf_parse_glyphs,

+	_bdf_parse_start): Updated accordingly.

+	* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Ditto.

+

+2018-08-13  Werner Lemberg  <[email protected]>

+

+	* src/type42/t42parse.c (t42_parse_sfnts): One more format check.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9832

+

+2018-08-11  Werner Lemberg  <[email protected]>

+

+	* src/base/ftcalc.c (FT_Matrix_Check): Fix integer overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9811

+

+2018-08-10  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/sfnt/ttsbit.c (tt_sbit_decoder_load_compound): Follow specs.

+

+2018-08-10  Ben Wagner  <[email protected]>

+

+	* src/sfnt/sfobjs.c (sfnt_done_face): Fix memory leak (#54435).

+

+2018-08-10  Werner Lemberg  <[email protected]>

+

+	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Improve tracing.

+

+2018-08-10  Werner Lemberg  <[email protected]>

+

+	Fix clang warnings.

+

+	* src/base/ftdebug.c (ft_trace_level_enabled,

+	ft_trace_level_disabled): Add `static' keyword.

+

+2018-08-09  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster, smooth] Reinstate bitmap size limits.

+

+	This again moves outline and bitmap size checks one level up.

+

+	* src/base/ftoutln.c (FT_Outline_Render): Explicitly reject enormous

+	outlines.

+	* src/raster/ftrend1.c (ft_raster1_render): Reject enormous bitmaps

+	and, therefore, outlines that require them.

+	* src/smooth/ftsmooth.c (ft_smooth_render_generic): Ditto.

+

+	* src/raster/ftraster.c (ft_black_render): Remove outline size checks.

+	* src/smooth/ftgrays.c (gray_raster_render): Ditto.

+	[STANDALONE]: Remove `FT_Outline_Get_CBox' copy.

+

+2018-08-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf] Revert massive unsigning.

+

+2018-08-08  Werner Lemberg  <[email protected]>

+

+	[smooth] Improve tracing.

+

+	* src/smooth/ftgrays.c (gray_convert_glyph_inner): Only use tracing

+	if called the first time.

+	(gray_convert_glyph): Updated.

+

+2018-08-08  Werner Lemberg  <[email protected]>

+

+	Add internal functions `FT_Trace_Disable' and `FT_Trace_Enable'.

+

+	It sometimes makes sense to suppress tracing informations, for

+	example, if it outputs identical messages again and again.

+

+	* include/freetype/internal/ftdebug.h: Make `ft_trace_levels' a

+	pointer.

+	(FT_Trace_Disable, FT_Trace_Enable): New declarations.

+

+	* src/base/ftdebug.c (ft_trace_levels): Rename to...

+	(ft_trace_levels_enabled): ... this.

+	(ft_trace_levels_disabled): New array.

+	(ft_trace_levels): New pointer.

+	(FT_Trace_Disable, FT_Trace_Enable): Implement.

+	(ft_debug_init): Updated.

+

+2018-08-08  Werner Lemberg  <[email protected]>

+

+	Debugging improvements.

+

+	* src/base/ftobjs.c (pixel_modes): Move this array to top level

+	from ...

+	(FT_Load_Glyph): ... here.

+	(FT_Render_Glyph_Internal): Use `width' x `height' in trace message.

+	Use `pixel_modes'.

+

+2018-08-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf] Massive unsigning (part 2).

+

+	Treat all size related properties as unsigned values.

+

+	* src/pcf/pcf.h (PCF_ParsePropertyRec): Use unsigned `name' and

+	`value'.

+	* src/pcf/pcfread.c (pcf_get_properties, pcf_load_font): Updated

+	parsing code and handling of AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE,

+	RESOLUTION_X and RESOLUTION_Y.

+

+2018-08-08  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf] Massive unsigning (part 1).

+

+	Unofficial specifications hesitate to use unsigned 32-bit integers.

+	Negative values caused a lot of trouble in the past and it is safer

+	and easier to treat some properties as unsigned.

+

+	* src/pcf/pcf.h (PCF_AccelRec): Use unsigned values for `fontAscent',

+	`fontDescent', and `maxOverlap'.

+	* src/pcf/pcfread.c (pcf_load_font, pcf_get_accel): Updated.

+	* src/pcf/pcfdrivr.c (PCF_Glyph_Load, PCF_Size_Select,

+	PCF_Size_Request): Updated.

+

+2018-08-07  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/pcf/pcfread.c (pcf_get_bitmaps): Unsign `offsets' and

+	`bitmapSizes'.

+

+2018-08-06  Werner Lemberg  <[email protected]>

+

+	* devel/ftoption.h: Synchronize with main `ftoption.h'.

+

+2018-08-06  Alexei Podtelezhnikov  <[email protected]>

+

+	[pcf] Use unsigned types.

+

+	* src/pcf/pcf.h (PCF_Encoding): Use unsigned `enc'.

+	* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Ditto.

+	* src/pcf/pcfread.c (pcf_get_encodings): Use unsigned types.

+

+2018-08-05  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgload.c (compute_glyph_metrics): Fix overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/chromium/issues/detail?id=777151

+

+2018-08-04  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttinterp.c (opcode_name): Fix typos.

+

+2018-08-04  Werner Lemberg  <[email protected]>

+

+	Fix clang warnings.

+

+	* src/base/ftoutln.c (FT_Outline_EmboldenXY): Fix type of

+	`orientation'.

+

+	* src/gxvalid/gxvcommn.c (gx_lookup_value_read): Fix signature.

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Fix type of some variables.

+	Add cast.

+

+	* src/type1/t1load.c (parse_weight_vector): Fix cast.

+

+2018-07-31  Werner Lemberg  <[email protected]>

+

+	* src/cid/cidtoken.h: Handle `XUID' keyword.

+

+2018-07-31  Werner Lemberg  <[email protected]>

+

+	[cid] Trace PostScript dictionaries.

+

+	* src/cid/cidload.c: Include FT_INTERNAL_POSTSCRIPT_AUX_H.

+	(cid_load_keyword, cid_parse_font_matrix, parse_fd_array,

+	parse_expansion_factor, cid_parse_dict): Add tracing calls.

+	(parse_font_name): New function to trace `/FontName' keywords in

+	/FDArray dict.

+	(cid_field_records): Register `parse_font_name'.

+

+2018-07-30  Werner Lemberg  <[email protected]>

+

+	[cff] Fix typo.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9409

+

+	* src/cff/cffdrivr.c (cff_get_cid_from_glyph_index): Fix boundary

+	check.

+

+2018-07-29  Werner Lemberg  <[email protected]>

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Another thinko.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9608

+

+2018-07-28  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Fix Harmony memory management.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9501

+

+	* src/smooth/ftgrays.c (ft_smooth_render_generic): Restore buffer

+	after each rendering in case of failure.

+

+2018-07-28  Werner Lemberg  <[email protected]>

+

+	[type1] Avoid segfaults with `FT_Get_PS_Font_Value'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9610

+

+	* src/type1/t1driver.c (t1_ps_get_font_value): Protect against NULL.

+

+2018-07-27  Werner Lemberg  <[email protected]>

+

+	[truetype] Make `TT_Set_MM_Blend' idempotent (#54388).

+

+	* src/truetype/ttgxvar.c (tt_set_mm_blend): Correctly set

+	`face->doblend' if the current call to the function yields the same

+	blend coordinates as the previous call.

+

+2018-07-27  Werner Lemberg  <[email protected]>

+

+	[psaux, type1]: More tracing improvements.

+

+	* src/psaux/psintrp.c (cf2_interpT2CharString): Trace skipped

+	outline commands.

+

+	* src/psaux/t1decode.c (t1_decoder_parse_charstring): Fix

+	missing case.

+	(t1_decoder_parse_metrics): Make tracing output more compact.

+

+	* src/type1/t1gload.c (T1_Compute_Max_Advance): Be less verbose.

+	(T1_Get_Advances): Add tracing.

+

+2018-07-25  Werner Lemberg  <[email protected]>

+

+	[psaux, type1] Trace PostScript dictionaries and other things.

+

+	The tracing of /Encoding, /Subrs, and /Charstrings is rudimentary

+	right now.

+

+	* src/psaux/psobjs.c (ps_parser_load_field,

+	ps_parser_load_field_table): Add tracing calls.

+

+	* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Make tracing

+	output more compact.

+

+	* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances): Add

+	tracing messages.

+

+	* src/type1/t1load.c (parse_blend_axis_types,

+	parse_blend_design_positions, parse_blend_design_map,

+	parse_weight_vector, t1_load_keyword, t1_parse_font_matrix,

+	parse_encoding, parse_subrs, parse_charstrings, T1_Open_Face): Add

+	tracing calls.

+

+	* src/type1/t1objs.c (T1_Face_Init): Add tracing call.

+

+	* src/sfnt/sfobjs.c (sfnt_init_face): Make tracing message more

+	verbose.

+

+2018-07-25  Werner Lemberg  <[email protected]>

+

+	Fix minor ASAN run-time warnings.

+

+	* src/base/ftutil.c (ft_mem_alloc, ft_mem_realloc): Only call

+	`FT_MEM_ZERO' if we actually have a buffer.

+	(ft_mem_dup): Only call `ft_memcpy' if we actually have a buffer.

+

+2018-07-24  Alexei Podtelezhnikov  <[email protected]>

+

+	[build] Fortify dllexport/dllimport attributes (#53969,#54330).

+

+	We no longer use predefined _DLL, which can be defined for static

+	builds too with /MD. We use DLL_EXPORT and DLL_IMPORT instead,

+	following libtool convention.

+

+	* CMakeLists.txt [WIN32], builds/windows/vc2010/freetype.vcxproj:

+	Define DLL_EXPORT manually.

+

+	* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,

+	builds/vms/ftconfig.h, builds/windows/vc2010/index.html,

+	src/base/ftver.rc: /_DLL/d, s/FT2_DLLIMPORT/DLL_IMPORT/.

+

+2018-07-24  Werner Lemberg  <[email protected]>

+

+	[type1] Check relationship between number of axes and designs.

+

+	For Multiple Masters fonts we don't support intermediate designs;

+	this implies that

+

+	  number_of_designs == 2 ^^ number_of_axes

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9557

+

+	* src/type1/t1load.c (T1_Open_Face): Ensure above constraint.

+	(T1_Get_MM_Var): Remove now redundant test.

+

+2018-07-24  Hin-Tak Leung  <[email protected]>

+

+	[truetype] Match ttdebug's naming of instruction mnemonics.

+

+	* src/truetype/ttinterp.c: The form used in ttdebug,

+	"MDRP[G,B,W,?]", etc., is slightly more readable than

+	"MDRP[00,01,02,03]".

+

+2018-07-24  Werner Lemberg  <[email protected]>

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Thinko.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9561

+

+2018-07-22  Werner Lemberg  <[email protected]>

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Check index of defaultChar.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9527

+

+2018-07-22  Werner Lemberg  <[email protected]>

+

+	* src/pcf/pcfread.c (pcf_load_font): Fix number of glyphs.

+

+	This is an oversight of the module change 2018-07-21.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9524

+

+2018-07-22  Werner Lemberg  <[email protected]>

+

+	[cid] Sanitize `BlueShift' and `BlueFuzz'.

+

+	This code is taken from the type1 module.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9510

+

+	* src/cid/cidload.c (parse_fd_array): Set some private dict default

+	values.

+	(cid_face_open): Do the sanitizing.

+	Fix some tracing messages.

+

+2018-07-21  Werner Lemberg  <[email protected]>

+

+	[pcf] Fix handling of the undefined glyph.

+

+	This change makes the driver use the `defaultChar' property of PCF

+	files.

+

+	* src/pcf/pcf.h (PCF_FaceRec): Change type of `defaultChar' to

+	unsigned.

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Read `defaultChar' as

+	unsigned.

+	Validate `defaultChar'.

+	If `defaultChar' doesn't point to glyph index zero, swap glyphs with

+	index zero and index `defaultChar' and adjust the encodings

+	accordingly.

+

+	* src/pcf/pcfdrivr.c (pcf_cmap_char_index, pcf_cmap_char_next,

+	PCF_Glyph_Load): Undo change from 2002-06-16 which always enforced

+	the first character in the font to be the default character.

+

+2018-07-20  Armin Hasitzka  <[email protected]>

+

+	Move the legacy fuzz target to the `freetype-testing' repository.

+

+	It can now be found at

+

+	  https://github.com/freetype/freetype2-testing/tree/master/fuzzing/src/legacy

+

+	* src/tools/ftfuzzer: Remove this folder and its contents from the

+	repository.

+

+2018-07-20  Werner Lemberg  <[email protected]>

+

+	[cff] Avoid left-shift of negative numbers (#54322).

+

+	* src/cff/cffgload.c (cff_slot_load): Use multiplication.

+

+2018-07-17  Werner Lemberg  <[email protected]>

+

+	Allow FT_ENCODING_NONE for `FT_Select_Charmap'.

+

+	This is a valid encoding tag for BDF, PCF, and Windows FNT, and

+	there is no reason to disallow it for these formats.

+

+	* src/base/ftobjs.c (FT_Select_Charmap): Implement it.

+

+2018-07-17  Werner Lemberg  <[email protected]>

+

+	* src/pcf/pcfread.c (pcf_get_encodings): Trace `defaultChar'.

+

+2018-07-16  Armin Hasitzka  <[email protected]>

+

+	* include/freetype/internal/ftcalc.h: Add macros for handling

+	harmless over-/underflowing `FT_Int' values.

+

+	* src/sfnt/sfdriver.c (fixed2float): Fix negation of

+	`(int)(-2147483648)'.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9423

+

+2018-07-16  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgxvar.c (tt_set_mm_blend): Fix off-by-one error.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9412

+

+2018-07-12  Werner Lemberg  <[email protected]>

+

+	* src/base/ftoutln.c (FT_Outline_Get_Orientation): Init `cbox'.

+

+	Taken from patch #9667, written by Steve Langasek

+	<[email protected]>.

+

+	This fixes a build failure (most probably a bug in gcc) on ppc64el

+	when building with -O3.

+

+2018-07-05  Werner Lemberg  <[email protected]>

+

+	Fix typo (#54238).

+

+	* src/base/ftcolor.c (FT_Palette_Set_Foreground_Color)

+	[!TT_CONFIG_OPTION_COLOR_LAYERS]: Add return value.

+

+2018-07-05  Werner Lemberg  <[email protected]>

+

+	Adjust table size comparisons (#54242).

+

+	* src/sfnt/ttcpal.c (tt_face_load_cpal): Implement it.

+

+2018-07-05  Werner Lemberg  <[email protected]>

+

+	Fix more 32bit issues (#54208).

+

+	* src/cff/cffload.c (cff_blend_build_vector): Convert assertion into

+	run-time error.

+

+	* src/truetype/ttgxvar.c (ft_var_to_normalized): Protect against

+	numeric overflow.

+

+2018-07-04  Werner Lemberg  <[email protected]>

+

+	Fix 32bit build warnings (#54239).

+

+	* src/base/ftbitmap.c (FT_Bitmap_Blend): Add casts to avoid signed

+	vs. unsigned comparisons.

+

+	* srb/sfnt/ttcolr.c (tt_face_get_colr_layer): Ditto.

+

+2018-07-02  Jeff Carey  <[email protected]>

+

+	* src/psnames/psmodule.c (ps_unicodes_init): Fix alloc debugging.

+

+2018-07-02  Werner Lemberg  <[email protected]>

+

+	s/palette_types/palette_flags/.

+

+	Suggested by Behdad.

+

+2018-07-02  Werner Lemberg  <[email protected]>

+

+	Make `FT_Get_Color_Glyph_Layer' return FT_Bool.

+

+	* include/freetype/freetype.h, src/base/ftobjs.c

+	(FT_Get_Color_Glyph_Layer, FT_Render_Glyph_Internal): Updated.

+

+	* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func),

+	src/sfnt/ttcolr.h, src/sfnt/ttcolr.c (tt_face_get_colr_layer):

+	Updated.

+

+2018-07-01  Werner Lemberg  <[email protected]>

+

+	* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Guard SFNT function.

+

+	Reported by Behdad.

+

+2018-06-28  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/fttrigon.c (FT_Tan): Improve accuracy.

+	(FT_Vector_Rotate): Simplify.

+

+2018-06-28  Alexei Podtelezhnikov  <[email protected]>

+

+	* src/base/ftobjs.c (FT_Set_Charmap): Robustify.

+

+2018-06-25  Werner Lemberg  <[email protected]>

+

+	[truetype] Fix memory leak.

+

+	* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Add initializers.

+	Fix typo in `goto' destination.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9071

+

+2018-06-25  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgxvar.c (tt_face_vary_cvt): Add initializers.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9070

+

+2018-06-24  Werner Lemberg  <[email protected]>

+

+	[truetype] Increase precision while applying VF deltas.

+

+	It turned out that we incorrectly round CVT and glyph point deltas

+	before accumulation, leading to severe positioning errors if there

+	are many delta values to sum up.

+

+	Problem reported by Akiem Helmling <[email protected]> and analyzed

+	by Behdad.

+

+	* src/truetype/ttgxvar.c (ft_var_readpackeddelta): Return deltas in

+	16.16 format.

+	(tt_face_var_cvt): Collect deltas in `cvt_deltas', which is a 16.16

+	format array, and add the accumulated values to the CVT at the end

+	of the function.

+	(TT_Vary_Apply_Glyph_Deltas): Store data in `points_org' and

+	`points_out' in 16.16 format.

+	Collect deltas in `point_deltas_x' and `point_deltas_y', which are

+	16.16 format arrays, and add the accumulated values to the glyph

+	coordinates at the end of the function.

+

+2018-06-24  Werner Lemberg  <[email protected]>

+

+	New base function `FT_Matrix_Check' (#54019).

+

+	* src/base/ftcalc.c (FT_Matrix_Check): New base function to properly

+	reject degenerate font matrices.

+

+	* include/freetype/internal/ftcalc.h: Updated.

+

+	* src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c

+	(cid_parse_font_matrix), src/type1/t1load.c (t1_parse_font_matrix),

+	src/type42/t42parse.c (t42_parse_font_matrix): Use

+	`FT_Matrix_Check'.

+

+2018-06-23  Werner Lemberg  <[email protected]>

+

+	Fix typo.

+

+	Reported by Behdad.

+

+	* src/base/ftcolor.c (FT_Palette_Data_Get)

+	[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.

+

+2018-06-21  Werner Lemberg  <[email protected]>

+

+	s/FT_PALETTE_USABLE_WITH_/FT_PALETTE_FOR_/.

+

+	* include/freetype/ftcolor.h, include/freetype/internal/sfnt.h,

+	src/sfnt/ttcolr.c: Do it.

+

+2018-06-19  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix CPAL heap buffer overflow.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8968

+

+	* src/sfnt/ttcpal.c (tt_face_load_cpal): Guard CPAL version 1

+	offsets.

+

+2018-06-19  Werner Lemberg  <[email protected]>

+

+	Doh.  Don't use CPAL or COLR data if tables are missing.

+

+	Reported by Alexei.

+

+	* src/sfnt/ttcolr.c (tt_face_get_colr_layer): Return immediately if

+	`colr' is NULL.

+

+	* src/sfnt/ttcpal.c (tt_face_palette_set): Return immediately, if

+	`cpal' is NULL.

+

+2018-06-17  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] Introduce `FT_New_Glyph'.

+

+	This function facilitates access to full capabilities of FreeType

+	rendering engine for custom glyphs. This can be quite useful for

+	consistent rendering of mathematical and chemical formulas, e.g.

+

+	  https://bugs.chromium.org/p/chromium/issues/detail?id=757078

+

+	* include/freetype/ftglyph.h, src/base/ftglyph.c (FT_New_Glyph): New

+	function.

+

+2018-06-17  Armin Hasitzka  <[email protected]>

+

+	[bdf] Fix underflow of an unsigned value.

+

+	bdflib.c:1562 could be reached with `font->glyphs_used == 0'.  That

+	caused an underflow of the unsigned value which results in undefined

+	behaviour.

+

+	* src/bdf/bdflib.c (_bdf_parse_glyphs): Bail out earlier than before

+	if the `ENCODING' keyword cannot be found.

+

+2018-06-17  Werner Lemberg  <[email protected]>

+

+	[base] Add tracing for `FT_Bitmap_Blend'.

+

+	* include/freetype/internal/fttrace.h (trace_bitmap): New

+	enumeration.

+

+	* src/base/ftbitmap.c (FT_COMPONENT): Define.

+	(FT_Bitmap_Blend): Add `FT_TRACE5' calls.

+

+2018-06-17  Werner Lemberg  <[email protected]>

+

+	s/trace_bitmap/trace_checksum/.

+

+	* include/freetype/internal/fttrace.h: s/bitmap/checksum/.

+

+	* src/base/ftobjs.c (FT_COMPONENT): s/trace_bitmap/trace_checksum/.

+	Adjust code.

+

+2018-06-16  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix color glyph layer loading.

+

+	* src/sfnt/ttcolr.c (Colr): Add `table_size' field.

+	(tt_face_load_colr): Set it.

+	(tt_face_get_colr_layer): Check pointer limit for layer entries.

+

+2018-06-16  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix color palette loading.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8933

+

+	* src/sfnt/ttcpal.c (Cpal): Add `table_size' field.

+	(tt_face_load_cpal): Set it.

+	(tt_face_palette_set): Check pointer limit for color entries.

+

+2018-06-16  Werner Lemberg  <[email protected]>

+

+	* src/base/ftbitmap.c (FT_Bitmap_Blend): Avoid integer overflow.

+

+2018-06-16  Werner Lemberg  <[email protected]>

+

+	Add `FT_Bitmap_Blend' API.

+

+	Still missing: Support for negative bitmap pitch and subpixel offset

+	of source bitmap.

+

+	* include/freetype/ftbitmap.h, src/base/ftbitmap.c

+	(FT_Bitmap_Blend): New function.

+

+2018-06-14  Werner Lemberg  <[email protected]>

+

+	Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'.

+

+	This avoids any additional allocation of COLR related structures in

+	a glyph slot.

+

+	* include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec,

+	FT_Get_GlyphLayers): Removed.

+

+	* include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed.

+	(FT_Slot_InternalRec): Remove `color_layers'.

+

+	* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func):

+	Removed.

+	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove

+	`load_colr_layer'.

+

+	* src/base/ftobjs.c (ft_glyph_slot_done): Updated.

+	(FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'.

+	(FT_Get_GlyphLayers): Removed.

+

+	* src/sfnt/sfdriver.c (sfnt_interface): Updated.

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed.

+	* src/sfnt/ttcolr.h: Updated.

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): Updated.

+

+2018-06-14  Werner Lemberg  <[email protected]>

+

+	Provide iterative API to access `COLR' data.

+

+	This solution doesn't store any data in an `FT_GlyphSlot' object.

+

+	* include/freetype/freetype.h (FT_LayerIterator): New structure.

+	(FT_Get_Color_Glyph_Layer): New function.

+

+	* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func): New

+	function type.

+	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.

+

+	* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Implement it.

+

+	* src/sfnt/ttcolr.c (tt_face_get_colr_layer): New function.

+	* src/sfnt/ttcolr.h: Updated.

+

+	* src/sfnt/sfdriver.c (sfnt_interface): Updated.

+

+2018-06-14  Werner Lemberg  <[email protected]>

+

+	Add glyph index and glyph load flags to glyph slot.

+

+	* include/freetype/freetype.h (FT_GlyphSlotRec): Rename unused

+	`reserved' field to `glyph_index'.

+

+	* include/freetype/internal/ftobjs.h (FT_Slot_InternalRec): Add

+	`load_flags' field.

+

+	* src/base/ftobjs.c (FT_Load_Glyph): Set new fields.

+

+2018-06-14  Werner Lemberg  <[email protected]>

+

+	[sfnt] Move `CPAL' stuff into separate files.

+

+	* src/sfnt/sfdriver.c: Include `ttcpal.h'.

+	* src/sfnt/sfnt.c: Include `ttcpal.c'.

+

+	* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: Move CPAL stuff to ...

+	* src/sfnt/ttcpal.c, src/sfnt/ttcpal.c: ... these new files.

+

+	* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC):

+	Updated.

+

+	* include/freetype/internal/fttrace.h: Add support for `colr' and

+	`cpal'.

+	Sort entries.

+

+2018-06-13  Werner Lemberg  <[email protected]>

+

+	[sfnt] Separate `CPAL' and `COLR' table handling.

+

+	Later on we want to support the `SVG' table also, which needs `CPAL'

+	(but not `COLR').

+

+	* include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_cpal'

+	and `free_cpal' fields.

+	(FT_DEFINE_SFNT_INTERFACE): Updated.

+

+	* include/freetype/internal/tttypes.h (TT_FaceRec): Replace

+	`colr_and_cpal' fields with `cpal' and `colr'.

+

+	* src/sfnt/sfdriver.c (sfnt_interface): Updated.

+

+	* src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Updated.

+

+	* src/sfnt/ttcolr.c (Colr, Cpal): Add `table' field.

+	(ColrCpal): Removed.

+	(tt_face_load_colr): Split off CPAL handling into...

+	(tt_face_load_cpal): ... this new function.

+	(tt_face_free_colr): Split off CPAL handling into...

+	(tt_face_free_cpal): ... this new function.

+	(tt_face_load_colr_layers, tt_face_palette_set): Updated.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): Updated.

+

+2018-06-12  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix `sizeof' thinko.

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_palette_set): Don't

+	use `sizeof' for computing array limit.

+

+2018-06-12  Werner Lemberg  <[email protected]>

+

+	Finish CPAL/COLR support (4/4).

+

+	* src/sfnt/ttcolr.c (tt_face_find_color): Removed.

+	(tt_face_colr_blend_layer): Use `face->palette' instead of calling

+	`tt_face_find_color'.

+	Use and set text foreground color.

+

+2018-06-12  Werner Lemberg  <[email protected]>

+

+	Finish CPAL/COLR support (3/4).

+

+	* src/base/ftcolor.c: Include FT_INTERNAL_SFNT_H.

+	(FT_Palette_Select, FT_Palette_Set_Foreground_Color): Implement

+	functions.

+

+2018-06-12  Werner Lemberg  <[email protected]>

+

+	Finish CPAL/COLR support (2/4).

+

+	* src/sfnt/ttcolr.c (tt_face_palette_set): New function.

+	(tt_face_load_colr): Allocate `face->palette' and call

+	`tt_face_palette_set'.

+	Adjust return error code in case of error.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+	* include/freetype/internal/sfnt.h (TT_Set_Palette_Func): New

+	function type.

+	(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.

+

+	* src/sfnt/sfdriver.c (sfnt_interface), src/sfnt/sfobjs.c

+	(sfnt_done_face): Updated.

+

+2018-06-12  Werner Lemberg  <[email protected]>

+

+	Finish CPAL/COLR support (1/4).

+

+	* include/freetype/internal/tttypes.h (TT_FaceRec): New fields

+	`palette_index', `palette', `have_foreground_color' and

+	`foreground_color'.

+

+2018-06-12  Werner Lemberg  <[email protected]>

+

+	[sfnt] Minor.

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr_layers):

+	s/palette_index/palette_entry_index/ for consistency.

+	Adjust return error code in case of error.

+

+2018-06-11  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Clean up.

+

+	* src/raster/ftraster.c (black_TWorker, SCALED, Set_High_Precision):

+	Clean up after 5-level gray removal (8dc8635874).

+	(Vertical_Sweep_Span): Be brief.

+

+2018-06-10  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix compiler warnings.

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_load_colr_layers,

+	tt_face_colr_blend_layer): Add `NULL' initializers.

+

+2018-06-10  Werner Lemberg  <[email protected]>

+

+	s/FT_Palette/FT_Palette_Data/, s/palette/palette_data/.

+

+	* include/freetype/ftcolor.h, include/freetype/internal/tttypes.h,

+	src/base/ftcolor.c, src/sfnt/sfobjs.c, src/sfnt/ttcolr.c: Updated.

+

+2018-06-10  Nikolaus Waxweiler  <[email protected]>

+

+	CMakeLists: also accept IOS_PLATFORM=SIMULATOR64

+

+	This might be needed to build FreeType for the iOS simulator. See

+	https://savannah.nongnu.org/bugs/index.php?54048. Patch contributed

+	by Steve Robinson.

+

+	* CMakeLists.txt: Accept IOS_PLATFORM=SIMULATOR64

+

+2018-06-10  Werner Lemberg  <[email protected]>

+

+	Implement `FT_Palette_Get'.

+

+	* src/base/ftcolor.c: New file.

+

+	* src/base/Jamefile (_sources), src/base/rules.mk (BASE_SRC),

+	src/base/ftbase.c: Add `ftcolor.c'.

+

+2018-06-10  Werner Lemberg  <[email protected]>

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr): Improve overflow checks.

+

+2018-06-09  Alexei Podtelezhnikov  <[email protected]>

+

+	[raster] Deal with pitch sign earlier.

+

+	* src/raster/ftraster.c (black_TWorker): Remove unused `traceG',

+	s/bTarget/bOrigin/.

+	(Render_Glyph): Set `ras.bOrigin' at the bottom-left corner.

+	(Vertical_Sweep_Init, {Vertical,Horizontal}_Sweep_{Span,Drop}):

+	Updated accordingly.

+

+2018-06-09  Werner Lemberg  <[email protected]>

+

+	[sfnt] Read `CPAL' version 1 tables.

+

+	* include/freetype/internal.tttypes.h: Include FT_COLOR_H.

+	(TT_FaceRec): Add `palette' field.

+

+	* src/sfnt/ttcolr.c: Include FT_COLOR_H.

+	(Cpal): Remove all data covered by the new `palette' field in

+	`TT_FaceRec'.

+	(tt_face_load_colr): Updated.

+	Read `CPAL' version 1 data.

+	(tt_face_load_colr_layers, tt_face_find_color): Updated.

+

+	* src/sfnt/sfobjs.c (sfnt_done_face): Free glyph color palette data.

+

+2018-06-07  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] API for Harmony LCD rendering.

+

+	This introduces `FT_Library_SetLcdGeometry' for setting up arbitrary

+	LCD subpixel geometry including non-striped patterns.

+

+	* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): New function.

+	* include/freetype/ftlcdfil.h: Document it.

+	* include/freetype/freetype.h: Minor.

+	* include/freetype/ftchapters.h: Minor.

+

+2018-06-06  Werner Lemberg  <[email protected]>

+

+	ftcolor.h: Redesign API.

+

+	While going to implement it I noticed that I need access to most of

+	the `CPAL' elements; I thus plan to add a `cpal' field to

+	`TT_FaceRec', which makes most of the previously suggested API

+	functions obsolete because the fields will be directly accessible.

+

+2018-06-06  Parth Wazurkar  <[email protected]>

+

+	[bdf, pcf] Remove deprecated FT_FACE_FLAG_FAST_GLYPHS flag.

+

+	* src/bdf/bdfdrivr.c (BDF_Face_Init): Remove deprecated

+	FT_FACE_FLAG_FAST_GLYPHS flag.

+

+	* src/pcf/pcfread.c (pcf_load_font): Remove deprecated

+	FT_FACE_FLAG_FAST_GLYPHS flag.

+

+2018-06-06  Werner Lemberg  <[email protected]>

+

+	[smooth, raster] Limit bitmap size (#54019).

+

+	* src/raster/ftraster.c [STANDALONE] (FT_Outline_Get_CBox): Add

+	function.

+	[!STANDALONE]: Include FT_OUTLINE_H.

+	(ft_black_render): Compute CBox and reject glyphs larger than

+	0xFFFF x 0xFFFF.

+

+	* src/smooth/ftgrays.c (gray_raster_render): Reject glyphs larger

+	than 0xFFFF x 0xFFFF.

+

+2018-06-03  Armin Hasitzka  <[email protected]>

+

+	* src/smooth/ftgrays.c (gray_convert_glyph): Remove unused variables.

+

+2018-06-03  Werner Lemberg  <[email protected]>

+

+	* src/tools/glnames.py (main): Emit header in `light' comment style.

+

+2018-06-02  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Attempt to mitigate bug #54019.

+

+	The robust rendering of estra large glyphs came with unbearable cost.

+	The old way of bisecting should fail but fail faster.

+

+	* src/smooth/ftgrays.c (gray_convert_glyph): Switch back to bisecting

+	in y-direction.

+

+2018-06-02  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttinterp.c (Ins_MIRP): Use SUB_LONG; avoid FT_ABS.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8706

+

+2018-06-02  Werner Lemberg  <[email protected]>

+

+	* src/autofit/afwarp.h: Use AF_CONFIG_OPTION_USE_WARPER (#54033).

+

+2018-05-31  Werner Lemberg  <[email protected]>

+

+	* src/raster/ftraster.c (black_TWorker_): Remove `gTarget' field.

+

+	This is no longer used.

+

+2018-05-31  Werner Lemberg  <[email protected]>

+

+	[sfnt] Get colors from `CPAL' table in right order (#54015).

+

+	* src/sfnt/ttcolr.c (tt_face_find_color): Fix it.

+

+2018-05-30  Werner Lemberg  <[email protected]>

+

+	ftcolor.h: Improve API design, fix typos (#54011, #54014).

+

+	* include/freetype/ftcolor.h (FT_Palette_Get_Names): Replace with...

+	(FT_Palette_Get_Name_IDs): ... this function.

+	(FT_Palette_Get_Entry_Names): Replace with...

+	(FT_Palette_Get_Entry_Name_IDs): ... this function

+	s/FT_Palette_Set_Foreground_COlor/FT_Palette_Set_Foreground_Color/.

+

+2018-05-30  Armin Hasitzka  <[email protected]>

+

+	Beautify a3cfed5e87232c933bdc64f43e8ebebcfd18b41b.

+

+	* src/autofit/afloader.c (af_loader_load_glyph): Move the

+	initialisationand declaration of variables into the if-block.

+

+2018-05-30  Armin Hasitzka  <[email protected]>

+

+	Fix pointer underflow.

+

+	The declaration of `edge2' can be reached with `edge1 == NULL' and

+	`axis->edges == 0' which results in undefined behaviour.

+

+	* src/autofit/afloader.c (af_loader_load_glyph): Initialise `edge2'

+	after checking `axis->num_edges > 1'.  `edge1 != NULL' can be assumed.

+

+2018-05-30  Werner Lemberg  <[email protected]>

+

+	Various minor color fixes.

+

+	* include/freetype/config/ftheader.h (FT_COLOR_H): New macro.

+

+	* include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change

+	type of `load_flags' to `FT_Int32'.

+

+	* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change

+	type of `idx' to `FT_UInt'.

+	(TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'.

+

+	* src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of

+	`load_flags' to `FT_Int32'.

+

+	* src/sfnt/ttcolr.c (find_base_glyph_record,

+	tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'.

+	(tt_face_find_color, tt_face_colr_blend_layer): Change type of

+	`color_index' to `FT_UInt'.

+	Fix signedness and type issues.

+

+	* src/sfnt/ttcolr.h: Updated.

+

+2018-05-25  Nikhil Ramakrishnan  <[email protected]>

+

+	[docmaker] Fix missing `Defined in (...)' under Windows/Cygwin.

+

+	This platform uses backslashes for paths, which docmaker didn't

+	understand correctly.

+

+	* src/tools/docmaker/tohtml.py (HtmlFormatter::blockEnter): Use

+	`os.path.normpath' to normalize the path for the platform being

+	used.

+

+2018-05-24  Alexei Podtelezhnikov  <[email protected]>

+

+	[smooth] Formalize Harmony LCD rendering.

+

+	This generalizes magic outline shifts that make Harmony LCD

+	rendering work in terms of precise two-dimensional RGB subpixel

+	positions. These coordinates are now set in time of the `smooth'

+	module initialization and later used to shift a glyph outline for

+	rendering. FT_RENDER_MODE_LCD and FT_RENDER_MODE_LCD_V use the same

+	coordinates. The letter, however, rotates them before using.

+	The LCD bitmap padding is also calculated using these coordinates.

+

+	* include/freetype/internal/ftobjs.h (FT_LibraryRec): New array field

+	`lcd_geometry'.

+	* src/base/ftlcdfil.c (ft_lcd_padding): Reworked.

+	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Updated accordingly.

+

+	* src/smooth/ftsmooth.c [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]

+	(ft_smooth_init): Initialize `lcd_geometry'.

+	(ft_smooth_render_generic): Formalize outline shifts.

+

+2018-05-22  Werner Lemberg  <[email protected]>

+

+	[truetype] Reject elements of composites with invalid glyph indices.

+

+	Reported as

+

+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8413

+

+	* src/truetype/ttgload.c (TT_Load_Composite_Glyph): Implement it.

+

+2018-05-22  Werner Lemberg  <[email protected]>

+

+	* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Trace # of points.

+

+2018-05-20  Werner Lemberg  <[email protected]>

+

+	* include/freetype/ftcolor.h: New file.

+

+	This is an interface to the `CPAL' OpenType table.  No

+	implementation yet.

+

+2018-05-18  Alexei Podtelezhnikov  <[email protected]>

+

+	* include/freetype/internal/ftcalc.h (FT_MSB): Verified `_MSC_VER'.

+

+	Actually `_BitScanReverse' is available since VS2005.

+

+2018-05-18  Werner Lemberg  <[email protected]>

+

+	* include/freetype/internal/ftcalc.h (FT_MSB): Use `_MSC_VER' value.

+

+	Older VC versions don't provide `_BitScanReverse'.  We test for VC

+	2013.

+

+	Reported by John Emmas <[email protected]>.

+

+2018-05-17  Werner Lemberg  <[email protected]>

+

+	s/inline/__inline/ for MSVC.

+

+	Reported by John Emmas <[email protected]>.

+

+	* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Do it.

+

+2018-05-16  Werner Lemberg  <[email protected]>

+

+	Add function `FT_Get_GlyphLayers' to access `COLR' table data.

+

+	* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this

+	structure to...

+	* include/freetype/freetype.h (FT_Glyph_LayerRec): ... this

+	header file.

+	(FT_Glyph_Layer): New typedef.

+	Update code to use it where appropriate.

+

+	* src/base/ftobjs.c (FT_Get_GlyphLayers): New function.

+

+2018-05-15  Alexei Podtelezhnikov  <[email protected]>

+

+	[base] Fix mono bitmap presetting (#53896).

+

+	It is rather fundamental to set monochrome bitmap based on rounded

+	CBox because the b/w rasterizer turns on pixels when their centers are

+	inside the glyph outline. The dropout control is unpredictable and can

+	distort narrow glyphs if the bitmap is too wide.

+

+	Reported by Chris Liddell.

+

+	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): If BBox boundaries

+	are too close, adjust them before rounding.

+

+2018-05-15  Werner Lemberg  <[email protected]>

+

+	[psaux] Fix compiler warning (#53915).

+

+	* src/psaux/psft.c (cf2_freeT1SeacComponent): Do it.

+

+2018-05-15  Werner Lemberg  <[email protected]>

+

+	[sfnt] Fix memory leak in handling `COLR' data.

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): Free old `layers' array

+	before reassigning allocated memory.

+	Only allocate `color_layers' if we don't have one already.

+

+2018-05-15  Werner Lemberg  <[email protected]>

+

+	[sfnt] If `COLR' is present, don't assume that all glyphs use it.

+

+	* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if

+	current glyph is not a `COLR' base glyph.

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate

+	`color_layers' if there are no color layers.

+

+2018-05-14  Werner Lemberg  <[email protected]>

+

+	* src/base/ftobjs.c (FT_Load_Glyph): Fix signature of `pixel_modes'.

+

+2018-05-14  Werner Lemberg  <[email protected]>

+

+	Provide dummy functions if `TT_CONFIG_OPTION_SFNT_NAMES' is not set.

+

+	* src/base/ftsnames.c [!TT_CONFIG_OPTION_SFNT_NAMES]: Implement it.

+

+2018-05-13  Werner Lemberg  <[email protected]>

+

+	* src/base/ftobjs.c (FT_Load_Glyph): Improve tracing.

+

+2018-05-13  Shao Yu Zhang  <[email protected]>

+	    Werner Lemberg  <[email protected]>

+

+	[sfnt] Preliminary support of colored layer outlines (#44689).

+

+	This commit enables OpenType's COLR/CPAL table handling; a typical

+	application are color emojis that can be scaled to any size.

+

+	If the color palette does not exist or is invalid, the rendering

+	step rasterizes the outline instead.  The current implementation

+	assumes that the foreground is black.

+

+	Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS.

+

+	There are still some issues with metrics; additionally, an API to

+	fetch color layers is missing.

+

+	* devel/ftoption.h, include/freetype/config/ftoption.h

+	(TT_CONFIG_OPTION_COLOR_LAYERS): New macro.

+

+	* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec,

+	FT_Colr_InternalRec): New structures.

+	(FT_Slot_InternalRec): Add `color_layers' field.

+

+	* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func,

+	TT_Blend_Colr_Func): New function types.

+	(SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer',

+	and `colr_blend' fields.

+

+	* include/freetype/internal/tttypes.h (TT_FaceRec): Add

+	`colr_and_cpal' field.

+

+	* include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New

+	macros.

+

+	* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files.

+

+	* src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal):

+	Handle glyph color layers.

+

+	* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add

+	`ttcolr.c'.

+

+	* src/sfnt/sfdriver.c: Include `ttcolr.h'.

+	(PUT_COLOR_LAYERS): New macro.

+	Update call to `FT_DEFINE_SFNT_INTERFACE'.

+

+	* src/sfnt/sfnt.c: Include `ttcolr.c'.

+

+	* src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables.

+	(sfnt_done_face): Updated.

+

+	* src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.

+

+2018-05-12  Arkady Shapkin  <[email protected]>

+

+	Use MS VC++'s _BitScanReverse to calculate MSB (patch #9636).

+

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

+	it.

+

+2018-05-10  Alan Coopersmith  <[email protected]>

+

+	Fix DLL compilation on Solaris.

+

+	AC_COMPILE_IFELSE only tries to compile a `*.c' to a `*.o'.  The

+	Solaris Studio 12.1 through 12.5 compilers see the

+	`-fvisibility=hidden' flag, but ignore it with a warning of:

+

+	  cc: Warning: Option -fvisibility=hidden passed to ld,

+	               if ld is invoked, ignored otherwise

+

+	AC_LINK_IFELSE does the compile and then tries to link the result,

+	at which point the Solaris linker will issue an error:

+

+	  ld: fatal: option '-fvisibility=hidden' is incompatible with

+	      building a dynamic executable

+

+	If we don't use AC_LINK_IFELSE to catch the error, then configure

+	will fail further tests which attempt to link, such as those testing

+	dependencies like `libbz2'.

+

+	Also, don't try adding `-fvisibility' if we have already added

+	`-xldscope', just use one of them, since Sun Studio 12 and earlier

+	compilers only issue a warning, and don't try passing through to the

+	linker to generate an error, so AC_LINK_IFELSE doesn't catch them.

+

+	Tested on Solaris 11.4 beta with compiler versions:

+

+	  Sun Studio 8 (Sun C 5.5)

+	  Sun Studio 10 (Sun C 5.7)

+	  Sun Studio 11 (Sun C 5.8)

+	  Sun Studio 12 (Sun C 5.9)

+	  Sun Studio 12.1 (Sun C 5.10)

+	  Oracle Solaris Studio 12.2 (Sun C 5.11)

+	  Oracle Solaris Studio 12.3 (Sun C 5.12)

+	  Oracle Solaris Studio 12.4 (Sun C 5.13)

+	  Oracle Developer Studio 12.5 (Sun C 5.14)

+	  Oracle Developer Studio 12.6 (Sun C 5.15)

+	  gcc 5.5.0

+	  gcc 7.3.0

+

+	and verified the libfreetype.so.6 generated by each of those

+	compilers exported the same set of symbols.

+

+	* builds/unix/configure.raw: Implement it.

+

+2018-05-08  Werner Lemberg  <[email protected]>

+

+	[autofit] Avoid potential SEGV if running out of memory.

+

+	Problem reported by Shailesh Mistry <[email protected]>.

+

+	* src/autofit/afshaper.c (af_shaper_buf_create,

+	af_shaper_buf_destroy) [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Don't

+	allocate and free a four-byte buffer.  Instead, make those functions

+	no-ops; the calling functions will provide a pointer to a buffer

+	instead.

+

+	* src/autofit/afcjk.c (af_cjk_metrics_init_widths,

+	af_cjk_metrics_init_blues, af_cjk_metrics_check_digits),

+	src/autofit/aflatin.c (af_latin_metrics_init_widths,

+	af_latin_metrics_init_blues, af_latin_metrics_check_digits)

+	[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Use pointer to local variable for

+	`shaper_buf'.

+

+2018-05-07  Nikolaus Waxweiler  <[email protected]>

+

+	[cmake] Allow using project as subfolder in other project.

+

+	* CMakeLists.txt: Test for CMake build directory being different

+	from source directory.  Provide other parts of the build system

+	access the full include directory.

+

+2018-05-07  Werner Lemberg  <[email protected]>

+

+	[build] Suppress configure's `nothing to be done' message.

+

+	This is due to calling the configure script via `make' (within the

+	top-level `configure' wrapper script).  The same can happen for all

+	other secondary make targets that are used to only modify the

+	primary one, e.g., `make setup devel'.

+

+	* builds/dos/detect.mk (emx, turboc, watcom, borlandc, borlandc16),

+	builds/os2/detect (visualage, watcom, borlandc, devel),

+	builds/unix/detect.mk (devel, lcc, unix), builds/windows/detect.mk

+	(visualc, watcom, visualage, lcc, mingw32, bcc32, devel-bcc,

+	devel-gcc): Use no-op recipe.

+

+2018-05-04  suzuki toshiya  <[email protected]>

+

+	Support symbol visibility features of Sun / Oracle C compilers.

+

+	Reported by Kiyoshi Kanazawa:

+	https://lists.gnu.org/archive/html/freetype-devel/2018-05/msg00008.html

+	Thanks to the suggestions by Alexei and Alan Coopersmith.

+

+	* builds/unix/configure.raw: Check if "-xldscope=hidden" is

+	accepted, and if so, it is added to CFLAGS.  This is the option

+	making Sun / Oracle C compilers hide the symbols from global

+	scope.

+	* include/freetype/config/ftconfig.h: Use "__global" prefix

+	for FT_EXPORT() macro, if SunPro C is newer than Sun ONE

+	Studio 8 (2003).

+	* builds/unix/ftconfig.in: Ditto.

+	* builds/vms/ftconfig.h: Ditto.

+

+2018-05-02  Nikolaus Waxweiler  <[email protected]>

+

+	Unbreak CMake Windows installation

+

+	* CMakeLists.txt: Generate ftconfig.h on non-UNIX.

+

+2018-05-02  Werner Lemberg  <[email protected]>

+

+	Remove FT_CONFIG_OPTION_PIC and related code.

+

+	*/* [FT_CONFIG_OPTION_PIC]: Remove all code guarded by this

+	preprocessor symbol.

+

+	*/*: Replace `XXX_GET' macros (which could be either a function in

+	PIC mode or an array in non-PIC mode) with `xxx' arrays.

+

+	* include/freetype/internal/ftpic.h, src/autofit/afpic.c,

+	src/autofit/afpic.h, src/base/basepic.c, src/base/basepic.h,

+	src/base/ftpic.c, src/cff/cffpic.c, src/cff/cffpic.h,

+	src/pshinter/pshpic.c, src/pshinter/pshpic.h, src/psnames/pspic.c,

+	src/psnames/pspic.h, src/raster/rastpic.c, src/raster/rastpic.h,

+	src/sfnt/sfntpic.c, src/sfnt/sfntpic.h, src/smooth/ftspic.c,

+	src/smooth/ftspic.h, src/truetype/ttpic.c, src/truetype/ttpic.h:

+	Removed.

+

+

+----------------------------------------------------------------------------

+

+Copyright (C) 2018-2021 by

+David Turner, Robert Wilhelm, and Werner Lemberg.

+

+This file is part of the FreeType project, and may only be used, modified,

+and distributed under the terms of the FreeType project license,

+LICENSE.TXT.  By continuing to use, modify, or distribute this file you

+indicate that you have read the license and understand and accept it

+fully.

+

+

+Local Variables:

+version-control: never

+coding: utf-8

+End: